Age and Sex in San Mateo, San Mateo County, California (Census County Division)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the county subdivisions in San Mateo County.
Scope: population of San Mateo County, San Mateo, and other county subdivisions in San Mateo County
San Mateo
San Mateo County
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-49,1412.262%2.26%7,2781.801%1.80%9,7192.405%2.41%13,58213.6k3.361%3.36%9,8572.439%2.44%7,5431.867%1.87%12,59512.6k3.117%3.12%9,8932.448%2.45%26,77126.8k6.625%6.62%28,86728.9k7.144%7.14%29,70629.7k7.351%7.35%30,31330.3k7.501%7.50%30,17330.2k7.467%7.47%30,10930.1k7.451%7.45%25,98526.0k6.430%6.43%13,11013.1k3.244%3.24%4,1971.039%1.04%3,5150.870%0.87%7,5971.880%1.88%14,46214.5k3.579%3.58%25,18325.2k6.232%6.23%27,92227.9k6.910%6.91%26,57526.6k6.576%6.58%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of San Mateo County and San Mateo
Female Male
San Mateo County
San Mateo
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.168147%-0.056354%-0.175791%-0.055173%-0.224501%0.22%0.168147%0.175791%0.168147%0.17%57,12057.1k14.135%14.1%-0.672221%-0.023015%-0.678176%-0.028354%-0.695236%0.70%0.672221%0.678176%0.672221%0.67%138,145138k34.186%34.2%-0.664533%-0.687934%-0.664533%0.66%0.664533%0.037189%0.687934%0.027353%0.701722%0.70%99,37799.4k24.593%24.6%-0.431831%-0.471813%-0.431831%0.43%0.431831%0.083459%0.471813%0.046075%0.515290%0.52%15,30915.3k3.788%3.79%-0.637408%-0.584684%-0.637408%0.64%0.637408%0.019467%0.584684%0.026322%0.656876%0.66%94,14294.1k23.297%23.3%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval 265+ 340-64 422-39 518-21 60-17

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of San Mateo County and San Mateo
Female Male
San Mateo County
San Mateo
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.045658%-0.050066%-0.046241%-0.042125%-0.095724%0.10%0.045658%0.046241%0.045658%0.05%9,1412.262%2.26%-0.154717%-0.050780%-0.152554%-0.064816%-0.205497%0.21%0.154717%0.152554%0.154717%0.15%7,2781.801%1.80%-0.211041%-0.058947%-0.227493%-0.055674%-0.269987%0.27%0.211041%0.227493%0.211041%0.21%9,7192.405%2.41%-0.292259%-0.087703%-0.300074%-0.087526%-0.379962%0.38%0.292259%0.300074%0.292259%0.29%13,58213.6k3.361%3.36%-0.383575%-0.045947%-0.397925%-0.066115%-0.429522%0.43%0.383575%0.397925%0.383575%0.38%9,8572.439%2.44%-0.440988%-0.051350%-0.497120%-0.036900%-0.492337%0.49%0.440988%0.497120%0.440988%0.44%7,5431.867%1.87%-0.511268%-0.016415%-0.563544%-0.008656%-0.527684%0.53%0.511268%0.563544%0.511268%0.51%12,59512.6k3.117%3.12%-0.571898%-0.080303%-0.612456%-0.088970%-0.652201%0.65%0.571898%0.612456%0.571898%0.57%9,8932.448%2.45%-0.650296%-0.024400%-0.662340%-0.047831%-0.674696%0.67%0.650296%0.662340%0.650296%0.65%26,77126.8k6.625%6.62%-0.704343%-0.020045%-0.721300%-0.031587%-0.724388%0.72%0.704343%0.721300%0.704343%0.70%28,86728.9k7.144%7.14%-0.724140%-0.021975%-0.719763%-0.013938%-0.746115%0.75%0.724140%0.719763%0.724140%0.72%29,70629.7k7.351%7.35%-0.746808%-0.006682%-0.704368%-0.007632%-0.753490%0.75%0.746808%0.704368%0.746808%0.75%30,31330.3k7.501%7.50%-0.730673%-0.745785%-0.730673%0.73%0.730673%0.032022%0.745785%0.005697%0.762696%0.76%30,17330.2k7.467%7.47%-0.743591%-0.732774%-0.743591%0.74%0.743591%0.003019%0.732774%0.019371%0.746610%0.75%30,10930.1k7.451%7.45%-0.594368%-0.646494%-0.594368%0.59%0.594368%0.097354%0.646494%0.062882%0.691722%0.69%25,98526.0k6.430%6.43%-0.539480%-0.585847%-0.539480%0.54%0.539480%0.002475%0.585847%0.017533%0.541954%0.54%13,11013.1k3.244%3.24%-0.498648%-0.507057%-0.498648%0.50%0.498648%0.041327%0.507057%0.032461%0.539975%0.54%4,1971.039%1.04%-0.339526%-0.438424%-0.339526%0.34%0.339526%0.190798%0.438424%0.092614%0.530323%0.53%3,5150.870%0.87%-0.444576%-0.470886%-0.444576%0.44%0.444576%0.050855%0.470886%0.029613%0.495431%0.50%7,5971.880%1.88%-0.584684%-0.023592%-0.552900%-0.608276%0.61%0.584684%0.552900%0.036524%0.584684%0.58%14,46214.5k3.579%3.58%-0.618076%-0.577915%-0.618076%0.62%0.618076%0.010245%0.577915%0.005326%0.628321%0.63%25,18325.2k6.232%6.23%-0.665342%-0.602426%-0.665342%0.67%0.665342%0.051275%0.602426%0.042001%0.716617%0.72%27,92227.9k6.910%6.91%-0.646287%-0.592781%-0.646287%0.65%0.646287%0.022718%0.592781%0.025518%0.669004%0.67%26,57526.6k6.576%6.58%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of San Mateo County and San Mateo
More Females More Males
San Mateo County
San Mateo
100%50%0%50%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-109.654472%-91.099570%-109.654472%109.7%0.4770.4867.706%67.7%32.294%32.3%-32.821497%-42.487407%-32.821497%32.8%0.7530.7557.049%57.0%42.951%43.0%-27.931520%-24.472918%-27.931520%27.9%0.7820.7856.127%56.1%43.873%43.9%-30.008467%-29.168138%-30.008467%30.0%0.7690.7756.523%56.5%43.477%43.5%-11.978495%-16.614872%-11.978495%12.0%0.8930.8952.825%52.8%47.175%47.2%-11.644220%-7.422708%-11.644220%11.6%0.8960.9052.751%52.8%47.249%47.2%-3.210713%-1.536050%-3.210713%3.2%0.9690.9750.790%50.8%49.210%49.2%-14.041540%-14.526771%-14.041540%14.0%0.8770.8853.280%53.3%46.720%46.7%-3.752188%-7.221444%-3.752188%3.8%0.9640.9650.921%50.9%49.079%49.1%-2.845900%-4.379133%-2.845900%2.8%0.9720.9750.701%50.7%49.299%49.3%-3.034652%-1.936529%-3.034652%3.0%0.9710.9750.747%50.7%49.253%49.3%-0.894691%-1.083481%-0.894691%0.9%0.9910.9950.223%50.2%49.777%49.8%4.382578%0.763928%4.382578%4.4%1.0441.0448.928%48.9%51.072%51.1%0.406017%2.643474%0.406017%0.4%1.0041.0049.899%49.9%50.101%50.1%16.379382%9.726606%16.379382%16.4%1.1641.1646.215%46.2%53.785%53.8%0.458716%2.992838%0.458716%0.5%1.0051.0049.886%49.9%50.114%50.1%8.287841%6.401881%8.287841%8.3%1.0831.0848.010%48.0%51.990%52.0%56.195335%21.124207%56.195335%56.2%1.5621.5639.033%39.0%60.967%61.0%11.438909%6.288689%11.438909%11.4%1.1141.1147.295%47.3%52.705%52.7%-4.034989%-4.034989%4.0%6.605959%0.9610.9650.989%51.0%49.011%49.0%1.657591%0.921638%1.657591%1.7%1.0171.0249.589%49.6%50.411%50.4%7.706613%6.971936%7.706613%7.7%1.0771.0848.145%48.1%51.855%51.9%3.515087%4.304873%3.515087%3.5%1.0351.0449.136%49.1%50.864%50.9%
M:F ratio of males to females in the age cohort
F females as a percentage of the age cohort
M males as a percentage of the age cohort

Map of Age Cohorts by Neighborhood in San Mateo

Children Age Cohorts by Neighborhood#5

Percentage of population aged 0 to 17 (%):
9%15%21%27%33%40%

College Age Cohorts by Neighborhood#6

Percentage of population aged 18 to 21 (%):
0.0%1.7%3.4%5.1%6.7%8.5%

20s Age Cohorts by Neighborhood#7

Percentage of population aged 22 to 29 (%):
1.5%5.9%10.2%14.6%18.9%23.3%

30s Age Cohorts by Neighborhood#8

Percentage of population aged 30 to 39 (%):
4.9%9.4%13.7%18.1%22.5%26.9%

40s Age Cohorts by Neighborhood#9

Percentage of population aged 40 to 49 (%):
6.4%9.9%13.4%16.8%20.3%23.8%

50s Age Cohorts by Neighborhood#10

Percentage of population aged 50 to 59 (%):
5.4%8.8%12.2%15.5%18.9%22.3%

60s Age Cohorts by Neighborhood#11

Percentage of population aged 60 to 69 (%):
4%9%15%20%25%31%

70s Age Cohorts by Neighborhood#12

Percentage of population aged 70 to 79 (%):
1.5%4.8%8.1%11.4%14.6%18.0%

80+ Age Cohorts by Neighborhood#13

Percentage of population aged 80 and older (%):
0.3%3.3%6.1%9.0%11.9%14.8%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in San Mateo

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
13.0%16.9%20.7%24.6%28.4%32.3%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
0.4%2.2%4.0%5.8%7.6%9.5%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
1.1%5.2%9.2%13.2%17.3%21.3%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
3.5%8.0%12.5%17.0%21.5%26.1%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
8.0%10.5%13.1%15.6%18.1%20.7%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
7.3%10.5%13.6%16.7%19.9%23.0%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
4.0%6.9%9.7%12.5%15.4%18.2%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
1.9%4.0%6.0%8.0%10.0%12.0%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
0.2%2.1%4.0%5.9%7.8%9.7%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in San Mateo

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
7%14%21%28%35%42%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0%7%13%20%26%33%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
0.0%4.9%9.8%14.8%19.7%24.7%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
0%8%16%25%33%42%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
3%9%15%20%26%32%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
1%8%15%22%28%35%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
0%7%13%19%24%31%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
0%6%13%19%25%32%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0.0%4.0%8.0%12.0%16.0%20.1%
Road Data ©OpenStreetMap

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Age Cohorts by Neighborhood in San Mateo

There are 102 neighborhoods that are fully or partially contained within San Mateo (98 fully and 4 partially). This section compares the 50 most populous of those to each other, San Mateo, and other entities that contain or substantially overlap with San Mateo. The least populous of the compared neighborhoods has a population of 2,423.

Children by Neighborhood#32

Percentage of population aged 0 to 17 (%):
Scope: population of San Mateo, selected neighborhoods in San Mateo, and entities that contain San Mateo
0%10%20%30%Count#Friendly Acres NeighborhoodFriendly AcresCentral Menlo Park NeighborhoodCntrl Menlo PkDuveneck - St. Francis NeighborhoodDuveneck - St. Fra…University Heights NeighborhoodUniv HtsThe Willows NeighborhoodThe WillowsBelle Haven NeighborhoodBelle HavenMiddlefield NeighborhoodMiddlefieldFarm Hill NeighborhoodFarm HillFair Oaks NeighborhoodFair OaksPalm NeighborhoodPalmCentral NeighborhoodCentralWestBaywood NeighborhoodBaywoodCentral NeighborhoodCentralCaliforniaSan Mateo Park NeighborhoodSan Mateo PkPacificSharon Heights NeighborhoodSharon HtsSan MateoUnited States of AmericaUnited StatesCipriani NeighborhoodCiprianiNorth Central NeighborhoodNorth CentralBays NeighborhoodBaysCanyon NeighborhoodCanyonConstellations and Stars NeighborhoodConstellations and …Central NeighborhoodCentralAragon NeighborhoodAragonSoutheast Hillsdale NeighborhoodSE HillsdaleNorth Shoreview NeighborhoodN ShoreviewSan Mateo CountySan MateoRoosevelt NeighborhoodRooseveltFish NeighborhoodFishFamous Ships NeighborhoodFamous ShipsBoats NeighborhoodBoatsSan Mateo Village NeighborhoodSan Mateo VlgSouth Shoreview NeighborhoodS ShoreviewWoodside Plaza NeighborhoodWoodside PlazaIslands NeighborhoodIslandsDowntown Menlo Park NeighborhoodDntn Menlo PkSan Francisco, Oakland, and Hayward Metro AreaSan FranciscoParkside NeighborhoodParksideSterling Downs NeighborhoodSterling DownsTwenty-Fifth Ave NeighborhoodTwenty-Fifth AveBirds NeighborhoodBirdsSteinberger NeighborhoodSteinbergerEagle Hill NeighborhoodEagle HillOakwood NeighborhoodOakwoodLaurelwood NeighborhoodLaurelwoodWestern Hills NeighborhoodWestern HillsHayward Park NeighborhoodHayward ParkNortheast Hillsdale NeighborhoodNE HillsdaleLos Prados NeighborhoodLos PradosSan Mateo Heights NeighborhoodSan Mateo HtsLauriedale NeighborhoodLauriedaleSequoia NeighborhoodSequoiaCentral Business District NeighborhoodCntrl Business DistDowntown North NeighborhoodDntn N30.050139%30.050139%30.1%1,7051,706130.038419%30.038419%30.0%1,1151,116229.114838%29.114838%29.1%1,000328.112726%28.112726%28.1%982983427.946557%27.946557%27.9%1,0221,023527.804720%27.804720%27.8%1,6591,660627.120120%27.120120%27.1%1,5611,562725.453734%25.453734%25.5%760825.449801%25.449801%25.4%747748925.082827%25.082827%25.1%1,7921024.621940%24.621940%24.6%1,7581123.760486%23.760486%23.8%17,834,66617.8M23.687179%23.687179%23.7%7637641223.651065%23.651065%23.7%2,1562,1571323.646283%23.646283%23.6%9,140,2839.14M23.436280%23.436280%23.4%6186191423.336041%23.336041%23.3%12,102,10512.1M23.310258%23.310258%23.3%9899901523.297112%23.297112%23.3%94,14294.1k23.108006%23.108006%23.1%73,612,43873.6M23.027468%23.027468%23.0%9439441622.724826%22.724826%22.7%1,1261,1271722.702009%22.702009%22.7%8991822.696418%22.696418%22.7%6121922.644733%22.644733%22.6%7542022.520083%22.520083%22.5%1,3992122.204727%22.204727%22.2%7622221.675587%21.675587%21.7%6926932321.620301%21.620301%21.6%9179182421.522415%21.522415%21.5%162,440162k21.359718%21.359718%21.4%8128132521.316884%21.316884%21.3%7247252621.168982%21.168982%21.2%1,2691,2702721.126424%21.126424%21.1%7387392820.973409%20.973409%21.0%1,0121,0132920.898483%20.898483%20.9%1,3743020.816929%20.816929%20.8%9503120.514131%20.514131%20.5%5165173220.436146%20.436146%20.4%7753320.429183%20.429183%20.4%935,152935k20.383835%20.383835%20.4%6923420.354655%20.354655%20.4%6763520.124340%20.124340%20.1%9163620.015476%20.015476%20.0%7233719.940934%19.940934%19.9%7253819.690766%19.690766%19.7%7933919.362042%19.362042%19.4%1,1231,1244019.082760%19.082760%19.1%6184118.270677%18.270677%18.3%9094218.146695%18.146695%18.1%7047054317.994492%17.994492%18.0%7927934415.776366%15.776366%15.8%5195204515.745224%15.745224%15.7%8784615.721355%15.721355%15.7%4144154715.586951%15.586951%15.6%5014813.494409%13.494409%13.5%3263274912.554732%12.554732%12.6%41350
Count number of children
# rank of neighborhood out of 50 by %

Age Cohorts by County Subdivision in the San Francisco Area

There are 22 county subdivisions in the San Francisco Area. This section compares San Mateo to all of the county subdivisions in the San Francisco Area and to those entities that contain or substantially overlap with San Mateo.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of San Mateo, selected other county subdivisions in the San Francisco Area, and entities that contain San Mateo
0%10%20%30%Count#TassajaraEast Contra CostaE Contra CostaAntioch-PittsburgLivermore-PleasantonLivermore-Pleasant…WestCaliforniaPacificSan MateoUnited States of AmericaUnited StatesFremontHaywardCentral Contra CostaCntrl Contra CostaWest Contra CostaW Contra CostaSan Mateo CountySan MateoNovatoRoss ValleySoutheast MarinSE MarinSan Francisco, Oakland, and Hayward Metro AreaSan FranciscoSan RafaelOaklandAlamedaHalf Moon BaySouth San FranciscoS San FranciscoNorthwest MarinNW MarinBerkeleyBrionesSan FranciscoBolinas30.556964%30.556964%30.6%19,27919.3k127.224874%27.224874%27.2%35,99736.0k226.182218%26.182218%26.2%40,68940.7k324.636401%24.636401%24.6%54,95155.0k423.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.336041%23.336041%23.3%12,102,10512.1M23.297112%23.297112%23.3%94,14294.1k523.108006%23.108006%23.1%73,612,43873.6M22.761568%22.761568%22.8%78,49678.5k622.418273%22.418273%22.4%86,88086.9k721.890089%21.890089%21.9%108,396108k821.643526%21.643526%21.6%55,57355.6k921.522415%21.522415%21.5%162,440162k21.225232%21.225232%21.2%13,19713.2k1020.940391%20.940391%20.9%12,22512.2k1120.654810%20.654810%20.7%11,24211.2k1220.429183%20.429183%20.4%935,152935k20.331329%20.331329%20.3%14,94814.9k1320.278714%20.278714%20.3%88,08188.1k1420.267669%20.267669%20.3%15,68915.7k1520.247583%20.247583%20.2%6,1991619.403573%19.403573%19.4%62,09962.1k1715.928450%15.928450%15.9%1,3091814.575559%14.575559%14.6%20,11520.1k1913.905269%13.905269%13.9%7312013.481174%13.481174%13.5%114,628115k2110.858011%10.858011%10.9%28622
Count number of children
# rank of county subdivision out of 22 by %

Age Cohorts by County Subdivision in California

There are 397 county subdivisions in California. This section compares San Mateo to the 50 most populous county subdivisions in California and to those entities that contain or substantially overlap with San Mateo. The least populous of the compared county subdivisions has a population of 168,048.

Children by County Subdivision#50

Percentage of population aged 0 to 17 (%):
Scope: population of San Mateo, selected other county subdivisions in California, and entities that contain San Mateo
0%10%20%30%Count#BakersfieldSalinasVictorville-HesperiaSouth Antelope ValleyS Antelope VlySouth Gate-East Los AngelesS Gate-E Los Ang…San BernardinoPerris ValleyMurrietaFresnoStocktonCoachella ValleyCoachella VlyNorth Antelope ValleyN Antelope VlyOxnardModestoComptonNewhallCoronaRiversideMission ViejoInglewoodDowney-NorwalkIrvine-Lake ForestIrvine-Lk FrstOntarioLivermore-PleasantonLivermore-Pleasant…Anaheim-Santa Ana-Garden GroveAnaheim-Santa An…SacramentoLong Beach-LakewoodLong Bch-LakewoodWestCaliforniaOceanside-EscondidoOceanside-Escond…PacificSan MateoWhittierUnited States of AmericaUnited StatesSan JoseEast San Gabriel ValleyE San Gabriel VlyFremontUpper San Gabriel ValleyUpper San Gabriel …HaywardSanta RosaSan DiegoCentral Contra CostaCntrl Contra CostaWest Contra CostaW Contra CostaSan Fernando ValleySan Fernando VlySan Mateo CountySan MateoLos AngelesSan Francisco, Oakland, and Hayward Metro AreaSan FranciscoPasadenaOaklandSouth CoastNorth CoastSouth San FranciscoS San FranciscoSouthwest San Gabriel ValleySW San Gabriel VlyCentral CoastSanta BarbaraSan Francisco30.255492%30.255492%30.3%124,377124k130.103304%30.103304%30.1%50,58850.6k229.435174%29.435174%29.4%111,612112k329.365511%29.365511%29.4%62,62962.6k429.165936%29.165936%29.2%146,441146k528.994345%28.994345%29.0%243,195243k628.846536%28.846536%28.8%82,74682.7k728.640426%28.640426%28.6%87,94187.9k828.397448%28.397448%28.4%196,566197k928.302745%28.302745%28.3%99,59099.6k1028.227720%28.227720%28.2%53,66453.7k1127.930766%27.930766%27.9%53,54353.5k1227.601989%27.601989%27.6%66,82066.8k1327.298986%27.298986%27.3%88,17988.2k1427.269923%27.269923%27.3%95,47895.5k1526.282485%26.282485%26.3%69,57069.6k1626.216001%26.216001%26.2%48,61648.6k1725.927237%25.927237%25.9%123,053123k1825.710652%25.710652%25.7%59,63259.6k1925.154719%25.154719%25.2%94,09594.1k2025.088958%25.088958%25.1%105,268105k2124.862386%24.862386%24.9%61,96962.0k2224.651051%24.651051%24.7%158,701159k2324.636401%24.636401%24.6%54,95155.0k2424.485581%24.485581%24.5%415,583416k2524.105398%24.105398%24.1%270,060270k2624.003737%24.003737%24.0%138,756139k2723.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.555887%23.555887%23.6%155,230155k2823.336041%23.336041%23.3%12,102,10512.1M23.297112%23.297112%23.3%94,14294.1k2923.292335%23.292335%23.3%75,73275.7k3023.108006%23.108006%23.1%73,612,43873.6M22.866327%22.866327%22.9%401,701402k3122.814001%22.814001%22.8%218,249218k3222.761568%22.761568%22.8%78,49678.5k3322.722312%22.722312%22.7%75,16775.2k3422.418273%22.418273%22.4%86,88086.9k3522.319074%22.319074%22.3%48,24048.2k3621.982996%21.982996%22.0%523,203523k3721.890089%21.890089%21.9%108,396108k3821.643526%21.643526%21.6%55,57355.6k3921.633042%21.633042%21.6%398,263398k4021.522415%21.522415%21.5%162,440162k20.884750%20.884750%20.9%537,723538k4120.429183%20.429183%20.4%935,152935k20.347629%20.347629%20.3%55,72355.7k4220.278714%20.278714%20.3%88,08188.1k4320.167625%20.167625%20.2%63,67063.7k4419.605378%19.605378%19.6%74,22474.2k4519.403573%19.403573%19.4%62,09962.1k4619.084224%19.084224%19.1%61,84361.8k4717.750779%17.750779%17.8%45,58445.6k4816.533978%16.533978%16.5%31,85831.9k4913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of county subdivision out of 50 by %

Age Cohorts by County Subdivision in the West

There are 1,950 county subdivisions in the West. This section compares San Mateo to the 50 most populous county subdivisions in the West and to those entities that contain or substantially overlap with San Mateo. The least populous of the compared county subdivisions has a population of 323,012.

Children by County Subdivision#59

Percentage of population aged 0 to 17 (%):
Scope: population of San Mateo, selected other county subdivisions in the West, and entities that contain San Mateo
0%10%20%30%Count#BakersfieldVictorville-HesperiaSouth Gate-East Los AngelesS Gate-E Los Ang…San BernardinoChandlerFresnoStocktonSalt Lake CitySalt Lk CityModestoComptonRiversideSouth AuroraInglewoodDowney-NorwalkPhoenixOntarioBoise CityAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…Beaverton-HillsboroSacramentoLong Beach-LakewoodLong Bch-LakewoodLas VegasEwaWestCaliforniaOceanside-EscondidoOceanside-Escond…PacificSan MateoWhittierColorado SpringsColorado SpgsUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlyFremontUpper San Gabriel ValleyUpper San Gabriel …Seattle EastTacomaSpokaneHaywardSan DiegoCentral Contra CostaCntrl Contra CostaSan Fernando ValleySan Fernando VlySan Mateo CountySan MateoTucsonNortheast JeffersonNE JeffersonLos AngelesDenverSan Francisco, Oakland, and Hayward Metro AreaSan FranciscoOaklandNorth CoastPortland EastSouthwest San Gabriel ValleySW San Gabriel VlySeattleHonoluluSan Francisco30.255492%30.255492%30.3%124,377124k129.435174%29.435174%29.4%111,612112k229.165936%29.165936%29.2%146,441146k328.994345%28.994345%29.0%243,195243k428.984100%28.984100%29.0%121,788122k528.397448%28.397448%28.4%196,566197k628.302745%28.302745%28.3%99,59099.6k727.496527%27.496527%27.5%270,755271k827.298986%27.298986%27.3%88,17988.2k927.269923%27.269923%27.3%95,47895.5k1025.927237%25.927237%25.9%123,053123k1125.535072%25.535072%25.5%98,09498.1k1225.154719%25.154719%25.2%94,09594.1k1325.088958%25.088958%25.1%105,268105k1424.820142%24.820142%24.8%790,766791k1524.651051%24.651051%24.7%158,701159k1624.573713%24.573713%24.6%83,11183.1k1724.485581%24.485581%24.5%415,583416k1824.260613%24.260613%24.3%104,522105k1924.105398%24.105398%24.1%270,060270k2024.003737%24.003737%24.0%138,756139k2123.974603%23.974603%24.0%448,315448k2223.870694%23.870694%23.9%81,44881.4k2323.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.555887%23.555887%23.6%155,230155k2423.336041%23.336041%23.3%12,102,10512.1M23.297112%23.297112%23.3%94,14294.1k2523.292335%23.292335%23.3%75,73275.7k2623.163415%23.163415%23.2%91,42691.4k2723.108006%23.108006%23.1%73,612,43873.6M23.033158%23.033158%23.0%147,927148k2822.866327%22.866327%22.9%401,701402k2922.814001%22.814001%22.8%218,249218k3022.761568%22.761568%22.8%78,49678.5k3122.722312%22.722312%22.7%75,16775.2k3222.721955%22.721955%22.7%133,247133k3322.639000%22.639000%22.6%100,255100k3422.471811%22.471811%22.5%81,45281.5k3522.418273%22.418273%22.4%86,88086.9k3621.982996%21.982996%22.0%523,203523k3721.890089%21.890089%21.9%108,396108k3821.633042%21.633042%21.6%398,263398k3921.522415%21.522415%21.5%162,440162k21.517750%21.517750%21.5%188,032188k4020.944454%20.944454%20.9%98,64098.6k4120.884750%20.884750%20.9%537,723538k4220.705017%20.705017%20.7%137,337137k4320.429183%20.429183%20.4%935,152935k20.278714%20.278714%20.3%88,08188.1k4419.605378%19.605378%19.6%74,22474.2k4519.507968%19.507968%19.5%96,00396.0k4619.084224%19.084224%19.1%61,84361.8k4717.999155%17.999155%18.0%187,875188k4817.885770%17.885770%17.9%71,80671.8k4913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of county subdivision out of 50 by %

Age Cohorts by County Subdivision in the United States

There are 35,600 county subdivisions in the United States. This section compares San Mateo to the 50 most populous county subdivisions in the United States and to those entities that contain or substantially overlap with San Mateo. The least populous of the compared county subdivisions has a population of 547,300.

Children by County Subdivision#68

Percentage of population aged 0 to 17 (%):
Scope: population of San Mateo, selected other county subdivisions in the United States, and entities that contain San Mateo
0%10%20%Count#San BernardinoSouthwest DallasSW DallasNorthwest HarrisNW HarrisFresnoFort WorthSalt Lake CitySalt Lk CityNortheast TarrantNE TarrantHoustonMilwaukeeSan Antonio CentralSan Antonio CntrlEl PasoNortheast DallasNE DallasBronxPlanoTulsaDetroitPhoenixOntarioTownship 1:Charlotte1, CharlotteAnaheim-Santa Ana-Garden GroveAnaheim-Santa An…SacramentoLong Beach-LakewoodLong Bch-LakewoodLas VegasWestCaliforniaOceanside-EscondidoOceanside-Escond…BrooklynPacificSan MateoUnited States of AmericaUnited StatesAlbuquerqueSan JoseEast San Gabriel ValleyE San Gabriel VlySeattle EastColumbusTown of HempsteadHempsteadOrlandoPhiladelphiaSan DiegoChicagoTampaAustinSan Fernando ValleySan Fernando VlySan Mateo CountySan MateoTucsonBaltimoreLos AngelesDenverQueensSan Francisco, Oakland, and Hayward Metro AreaSan FranciscoAtlantaMiamiSeattleWashingtonBostonManhattanSan Francisco28.994345%28.994345%29.0%243,195243k128.849273%28.849273%28.8%278,686279k228.832103%28.832103%28.8%215,729216k328.397448%28.397448%28.4%196,566197k427.641788%27.641788%27.6%235,492235k527.496527%27.496527%27.5%270,755271k626.987978%26.987978%27.0%154,609155k726.725236%26.725236%26.7%882,854883k826.475933%26.475933%26.5%158,504159k926.202297%26.202297%26.2%183,823184k1026.125729%26.125729%26.1%143,291143k1125.730246%25.730246%25.7%398,059398k1225.573137%25.573137%25.6%367,431367k1325.541202%25.541202%25.5%139,787140k1425.334430%25.334430%25.3%150,050150k1525.218343%25.218343%25.2%172,353172k1624.820142%24.820142%24.8%790,766791k1724.651051%24.651051%24.7%158,701159k1824.540635%24.540635%24.5%198,493198k1924.485581%24.485581%24.5%415,583416k2024.105398%24.105398%24.1%270,060270k2124.003737%24.003737%24.0%138,756139k2223.974603%23.974603%24.0%448,315448k2323.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.555887%23.555887%23.6%155,230155k2423.337305%23.337305%23.3%608,369608k2523.336041%23.336041%23.3%12,102,10512.1M23.297112%23.297112%23.3%94,14294.1k23.108006%23.108006%23.1%73,612,43873.6M23.033158%23.033158%23.0%147,927148k2622.866327%22.866327%22.9%401,701402k2722.814001%22.814001%22.8%218,249218k2822.721955%22.721955%22.7%133,247133k2922.597144%22.597144%22.6%185,081185k3022.467309%22.467309%22.5%172,708173k3122.237882%22.237882%22.2%129,541130k3222.168125%22.168125%22.2%345,809346k3321.982996%21.982996%22.0%523,203523k3421.913385%21.913385%21.9%594,733595k3521.700117%21.700117%21.7%144,592145k3621.692326%21.692326%21.7%186,313186k3721.633042%21.633042%21.6%398,263398k3821.522415%21.522415%21.5%162,440162k21.517750%21.517750%21.5%188,032188k3921.123671%21.123671%21.1%131,178131k4020.884750%20.884750%20.9%537,723538k4120.705017%20.705017%20.7%137,337137k4220.470812%20.470812%20.5%472,878473k4320.429183%20.429183%20.4%935,152935k19.876571%19.876571%19.9%115,302115k4419.544858%19.544858%19.5%188,182188k4517.999155%17.999155%18.0%187,875188k4617.402645%17.402645%17.4%114,685115k4716.549062%16.549062%16.5%108,939109k4814.639548%14.639548%14.6%239,355239k4913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of county subdivision out of 50 by %

Definitions

The US Census reports extensively on the topics of age and sex, often reporting other topics broken down by age and sex cohorts. This page reports on age and sex alone; charts presenting other topics by age and sex can be found on their topic-specific pages.

  • Children: less than 18 years old
  • College: from 18 to 21 years old
  • 20s: from 22 to 29 years old, to not overlap the college category
  • Younger Adult: from 22 to 39 years old
  • Older Adult: from 40 to 64 years old
  • Senior: more than 64 years old

For additional information about the data presented on this site, including our sources, please see the About Page.

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State:
California
County:
San Mateo
Metro Area:
San Francisco Area
Cities:
Belmont, East Palo Alto, Foster City, Menlo Park, Redwood City, San Carlos, San Mateo
Towns:
Atherton, Hillsborough, Portola Valley, Woodside
Unincorporated Places:
Emerald Lake Hills, Highlands-Baywood Park, Ladera, North Fair Oaks, West Menlo Park
ZIP Codes:
94002, 94010, 94025, 94027, 94028, 94061, 94062, 94063, 94065, 94070, 94303, 94401, 94402, 94403, 94404
Unified School Districts:
Cabrillo, La Honda-Pescadero
Elementary School Districts:
Belmont-Redwood Shores, Hillsborough City, Las Lomitas, Menlo Park City, Millbrae, Portola Valley, Ravenswood City, Redwood City, San Carlos, San Mateo-Foster City, Woodside
Secondary School Districts:
San Mateo, Sequoia
Neighborhoods:
Admirals, Allied Arts, Ampex, Aragon, Arlington, B-Delaware Strip, Bair Island, Bay Meadows, Bays, Baywood, Baywood, Baywood Knolls, Baywood Park, Belle Haven, Belmont Heights, Birds, Boats, Bridgepointe, Canyon, Centennial, Central, Central, Central, Central Business District, Central Menlo Park, Chess, Cipriani, College Heights, Constellations and Stars, Country Club Heights, Dolphin, Downtown, Downtown, Downtown Menlo Park, Downtown North, Duveneck - St. Francis, Eagle Hill, East San Mateo, Edgewater Isle, Explorers, Fair Oaks, Famous Ships, Farm Hill, Felton Gables, Fiesta Gardens, Fish, Foothill Terrace, Friendly Acres, Greco Island, Harbor, Hayward Park, Homebire, Islands, Laurelwood, Lauriedale, Lido, Lincoln, Linfield Oaks, Lorelei Manor, Los Prados, Marina Park, Marine, Mariners Island, Marlin, McDougal, Menlo Oaks, Middlefield, Nineteenth Avenue, North Central, North Shoreview, Northeast Hillsdale, Northwest Hillsdale, Oakwood, Palm, Parkside, Pilgrim-Triton, Pine Forest, Plateau-Skymont, Roosevelt, San Mateo Heights, San Mateo Park, San Mateo Village, Sequoia, Sharon Heights, Shearwater, Shoreline Park, South Shoreview, Southeast Hillsdale, Southwest Hillsdale, Steinberger, Sterling Downs, Sunnybrae, The Willows, Town Center, Twenty-Fifth Ave, University Heights, Vintage Oaks, Vintage Park, Western Hills, Westport, Westshore, Woodside Plaza
Congressional Districts:
CA-14, CA-18
State Senate District:
CA-13
Assembly Districts:
CA-22, CA-24