Age and Sex in Sonoma County, California (County)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the counties in California.
Scope: population of California, Sonoma County, and other counties in California
Sonoma County
California
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-411,62311.6k2.335%2.33%9,3801.884%1.88%12,85312.9k2.582%2.58%19,27819.3k3.873%3.87%17,31717.3k3.479%3.48%12,89312.9k2.590%2.59%20,92220.9k4.203%4.20%15,60615.6k3.135%3.14%36,44736.4k7.322%7.32%36,47536.5k7.328%7.33%32,49232.5k6.527%6.53%31,14831.1k6.257%6.26%29,61929.6k5.950%5.95%32,27832.3k6.484%6.48%32,28632.3k6.486%6.49%18,60218.6k3.737%3.74%6,3111.268%1.27%6,8351.373%1.37%12,73612.7k2.559%2.56%18,04318.0k3.625%3.62%29,11929.1k5.850%5.85%29,07129.1k5.840%5.84%26,44226.4k5.312%5.31%
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 California and Sonoma County
Female Male
California
Sonoma County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.204270%-0.056552%-0.157885%-0.041886%-0.260821%0.26%0.204270%0.157885%0.204270%0.20%83,34483.3k16.743%16.7%-0.673797%-0.043313%-0.628107%-0.017115%-0.717110%0.72%0.673797%0.628107%0.673797%0.67%173,090173k34.773%34.8%-0.611297%-0.701647%-0.611297%0.61%0.611297%0.036172%0.701647%0.031578%0.647469%0.65%112,785113k22.658%22.7%-0.648886%-0.002109%-0.701652%-0.650996%0.65%0.648886%0.701652%0.050982%0.648886%0.65%25,88225.9k5.200%5.20%-0.559645%-0.642652%-0.559645%0.56%0.559645%0.026641%0.642652%0.028379%0.586286%0.59%102,675103k20.627%20.6%
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 California and Sonoma County
Female Male
California
Sonoma County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.049457%-0.047022%-0.039047%-0.031647%-0.096479%0.10%0.049457%0.039047%0.049457%0.05%11,62311.6k2.335%2.33%-0.160835%-0.055206%-0.138544%-0.050257%-0.216041%0.22%0.160835%0.138544%0.160835%0.16%9,3801.884%1.88%-0.222429%-0.071558%-0.194002%-0.048276%-0.293988%0.29%0.222429%0.194002%0.222429%0.22%12,85312.9k2.582%2.58%-0.381778%-0.011009%-0.278404%-0.047771%-0.392787%0.39%0.381778%0.278404%0.381778%0.38%19,27819.3k3.873%3.87%-0.491319%-0.176987%-0.369729%-0.052880%-0.668306%0.67%0.491319%0.369729%0.491319%0.49%17,31717.3k3.479%3.48%-0.631609%-0.031842%-0.447596%-0.055693%-0.663451%0.66%0.631609%0.447596%0.631609%0.63%12,89312.9k2.590%2.59%-0.677480%-0.046072%-0.489719%-0.047683%-0.723552%0.72%0.677480%0.489719%0.677480%0.68%20,92220.9k4.203%4.20%-0.764400%-0.038772%-0.556695%-0.041019%-0.803173%0.80%0.764400%0.556695%0.764400%0.76%15,60615.6k3.135%3.14%-0.677735%-0.108924%-0.610297%-0.030760%-0.786659%0.79%0.677735%0.610297%0.677735%0.68%36,44736.4k7.322%7.32%-0.703087%-0.059344%-0.672672%-0.012121%-0.762431%0.76%0.703087%0.672672%0.703087%0.70%36,47536.5k7.328%7.33%-0.651136%-0.003214%-0.669774%-0.654351%0.65%0.651136%0.669774%0.001370%0.651136%0.65%32,49232.5k6.527%6.53%-0.624779%-0.001929%-0.668957%-0.626708%0.63%0.624779%0.668957%0.000957%0.624779%0.62%31,14831.1k6.257%6.26%-0.585324%-0.661266%-0.585324%0.59%0.585324%0.019406%0.661266%0.007922%0.604730%0.60%29,61929.6k5.950%5.95%-0.639324%-0.705425%-0.639324%0.64%0.639324%0.018241%0.705425%0.028957%0.657565%0.66%32,27832.3k6.484%6.48%-0.620520%-0.730940%-0.620520%0.62%0.620520%0.056170%0.730940%0.048142%0.676690%0.68%32,28632.3k6.486%6.49%-0.592502%-0.713830%-0.592502%0.59%0.592502%0.060670%0.713830%0.047764%0.653172%0.65%18,60218.6k3.737%3.74%-0.614333%-0.039174%-0.720108%-0.653507%0.65%0.614333%0.720108%0.071664%0.614333%0.61%6,3111.268%1.27%-0.641855%-0.741386%-0.641855%0.64%0.641855%0.089398%0.741386%0.058263%0.731253%0.73%6,8351.373%1.37%-0.624980%-0.029330%-0.672557%-0.654310%0.65%0.624980%0.672557%0.037001%0.624980%0.62%12,73612.7k2.559%2.56%-0.590225%-0.659372%-0.590225%0.59%0.590225%0.027790%0.659372%0.030790%0.618016%0.62%18,04318.0k3.625%3.62%-0.579417%-0.642360%-0.579417%0.58%0.579417%0.011130%0.642360%0.027891%0.590547%0.59%29,11929.1k5.850%5.85%-0.559931%-0.643238%-0.559931%0.56%0.559931%0.048174%0.643238%0.027157%0.608105%0.61%29,07129.1k5.840%5.84%-0.521238%-0.632325%-0.521238%0.52%0.521238%0.019929%0.632325%0.028642%0.541167%0.54%26,44226.4k5.312%5.31%
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 California and Sonoma County
More Females More Males
California
Sonoma County
50%0%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-95.074892%-81.049811%-95.074892%95.1%0.5130.5166.110%66.1%33.890%33.9%-34.324257%-36.274956%-34.324257%34.3%0.7440.7457.324%57.3%42.676%42.7%-32.171243%-24.884451%-32.171243%32.2%0.7570.7656.928%56.9%43.072%43.1%-2.883603%-17.158978%-2.883603%2.9%0.9720.9750.711%50.7%49.289%49.3%-36.022898%-14.302341%-36.022898%36.0%0.7350.7457.631%57.6%42.369%42.4%-5.041349%-12.442599%-5.041349%5.0%0.9520.9551.229%51.2%48.771%48.8%-6.800435%-9.736728%-6.800435%6.8%0.9360.9451.644%51.6%48.356%48.4%-5.072273%-7.368277%-5.072273%5.1%0.9520.9551.237%51.2%48.763%48.8%-16.071852%-5.040236%-16.071852%16.1%0.8620.8653.719%53.7%46.281%46.3%-8.440482%-1.801966%-8.440482%8.4%0.9220.9252.025%52.0%47.975%48.0%-0.493644%-0.493644%0.5%0.204484%0.9951.0050.123%50.1%49.877%49.9%-0.308682%-0.308682%0.3%0.143012%0.9971.0050.077%50.1%49.923%49.9%3.315486%1.197933%3.315486%3.3%1.0331.0349.185%49.2%50.815%50.8%2.853193%4.104936%2.853193%2.9%1.0291.0349.297%49.3%50.703%50.7%9.052059%6.586347%9.052059%9.1%1.0911.0947.835%47.8%52.165%52.2%10.239602%6.691182%10.239602%10.2%1.1021.1047.565%47.6%52.435%52.4%-6.376717%-6.376717%6.4%9.951788%0.9400.9451.545%51.5%48.455%48.5%13.928013%7.858621%13.928013%13.9%1.1391.1446.745%46.7%53.255%53.3%-4.693025%-4.693025%4.7%5.501565%0.9550.9651.146%51.1%48.854%48.9%4.708418%4.669609%4.708418%4.7%1.0471.0548.850%48.8%51.150%51.2%1.920810%4.341943%1.920810%1.9%1.0191.0249.524%49.5%50.476%50.5%8.603617%4.221871%8.603617%8.6%1.0861.0947.938%47.9%52.062%52.1%3.823325%4.529655%3.823325%3.8%1.0381.0449.062%49.1%50.938%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 County Subdivision in Sonoma County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
13.0%14.9%16.8%18.6%20.5%22.4%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
2.6%3.5%4.5%5.4%6.3%7.2%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
7.8%8.6%9.3%10.0%10.6%11.4%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
9.7%10.5%11.3%12.0%12.7%13.5%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
10.99%11.49%11.99%12.48%12.97%13.47%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
12.9%13.9%14.8%15.7%16.6%17.6%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
11.8%14.0%16.2%18.3%20.5%22.7%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
5.5%6.6%7.6%8.6%9.6%10.7%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
3.4%4.0%4.6%5.2%5.7%6.4%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in Sonoma County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
4%10%16%21%27%34%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
0%6%13%19%25%32%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
1.5%5.2%8.9%12.5%16.2%19.9%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
0.3%4.8%9.2%13.6%18.0%22.4%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
0.8%4.6%8.4%12.1%15.9%19.7%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
6.3%9.7%12.9%16.2%19.4%22.7%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
5%11%17%23%30%36%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
1%7%13%19%25%32%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
0%6%11%17%22%28%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in Sonoma County

Children Age Cohorts by Block Group#23

Percentage of population aged 0 to 17 (%):
0%9%18%28%37%47%

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0%12%24%36%48%60%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
0%6%11%17%23%29%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
0%8%15%23%30%38%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
0%5%11%16%22%28%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
0%8%16%24%32%40%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
0%9%17%26%35%44%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
0%8%16%24%32%41%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0%7%14%21%28%36%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Sonoma County

There are 37 places in Sonoma County. This section compares all 37 of those to each other, Sonoma County, and other entities that contain or substantially overlap with Sonoma County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Sonoma County, selected places in Sonoma County, and entities that contain Sonoma County
0%10%20%Count#EldridgeRoselandFetters Hot Springs-Agua CalienteFetters Hot Spgs-…PenngroveFultonBoyes Hot SpringsBoyes Hot SpgsWindsorCloverdaleWestCaliforniaGratonPacificUnited States of AmericaUnited StatesSanta RosaLarkfield-WikiupPetalumaEl VeranoCotatiSanta Rosa Metro AreaSanta RosaSonoma CountySonomaValley FordRohnert ParkHealdsburgGeyservilleSonomaCazaderoKenwoodSebastopolForestvilleMonte RioOccidentalGuernevilleGlen EllenSea RanchBodegaTimber CoveTemelecBodega BayBloomfieldJennerSereno del MarSalmon CreekCarmet28.373702%28.373702%28.4%410128.076464%28.076464%28.1%1,645225.465969%25.465969%25.5%1,216324.897959%24.897959%24.9%732424.208861%24.208861%24.2%153524.191969%24.191969%24.2%1,729624.170876%24.170876%24.2%6,603723.850280%23.850280%23.9%2,090823.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.603604%23.603604%23.6%393923.336041%23.336041%23.3%12,102,10512.1M23.108006%23.108006%23.1%73,612,43873.6M22.905899%22.905899%22.9%39,66539.7k1022.339851%22.339851%22.3%2,0681121.992403%21.992403%22.0%13,14213.1k1221.341024%21.341024%21.3%8881320.714767%20.714767%20.7%1,5361420.626748%20.626748%20.6%102,675103k20.626748%20.626748%20.6%102,675103k20.348837%20.348837%20.3%351519.729059%19.729059%19.7%8,2721619.218185%19.218185%19.2%2,2321717.641026%17.641026%17.6%1721817.439737%17.439737%17.4%1,9101917.241379%17.241379%17.2%502016.625917%16.625917%16.6%2042116.526868%16.526868%16.5%1,2612213.289698%13.289698%13.3%4672313.251784%13.251784%13.3%1302412.138085%12.138085%12.1%1092511.379731%11.379731%11.4%466265.234160%5.234160%5.2%38273.937729%3.937729%3.9%43283.649635%3.649635%3.6%10290.787402%0.787402%0.8%1300.000000%0.000000%0.0%0310.000000%0.000000%0.0%0320.000000%0.000000%0.0%0330.000000%0.000000%0.0%0340.000000%0.000000%0.0%0350.000000%0.000000%0.0%0360.000000%0.000000%0.0%037
Count number of children
# rank of place out of 37 by %

Age Cohorts by County Subdivision in Sonoma County

There are 7 county subdivisions in Sonoma County. This section compares all 7 of those to each other, Sonoma County, and other entities that contain or substantially overlap with Sonoma County.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Sonoma County, selected county subdivisions in Sonoma County, and entities that contain Sonoma County
0%5%10%15%20%Count#WestCaliforniaPacificUnited States of AmericaUnited StatesSanta RosaCloverdale-GeyservilleCloverdale-Geyser…HealdsburgSanta Rosa Metro AreaSanta RosaSonoma CountySonomaPetalumaSonomaSebastopolRussian River-Sonoma CoastRussian Riv-Sono…23.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.336041%23.336041%23.3%12,102,10512.1M23.108006%23.108006%23.1%73,612,43873.6M22.319074%22.319074%22.3%48,24048.2k121.413464%21.413464%21.4%2,936221.268689%21.268689%21.3%9,730320.626748%20.626748%20.6%102,675103k20.626748%20.626748%20.6%102,675103k20.518737%20.518737%20.5%26,32026.3k418.810369%18.810369%18.8%8,004515.590444%15.590444%15.6%4,568613.044661%13.044661%13.0%2,8777
Count number of children
# rank of county subdivision out of 7 by %

Age Cohorts by County in California

There are 58 counties in California. This section compares Sonoma County to the 50 most populous counties in California and to those entities that contain or substantially overlap with Sonoma County. The least populous of the compared counties has a population of 21,361.

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of Sonoma County, selected other counties in California, and entities that contain Sonoma County
0%10%20%30%Count#Tulare CountyTulareMerced CountyMercedKern CountyKernFresno CountyFresnoImperial CountyImperialSan Joaquin CountySan JoaquinYuba CountyYubaMadera CountyMaderaColusa CountyColusaKings CountyKingsStanislaus CountyStanislausSan Bernardino CountySan BernardinoGlenn CountyGlennSan Benito CountySan BenitoMonterey CountyMontereyRiverside CountyRiversideSutter CountySutterSacramento CountySacramentoVentura CountyVenturaTehama CountyTehamaWestCaliforniaContra Costa CountyContra CostaPacificUnited States of AmericaUnited StatesSanta Clara CountySanta ClaraOrange CountyOrangeSolano CountySolanoPlacer CountyPlacerLos Angeles CountyLos AngelesSanta Barbara CountySanta BarbaraSan Diego CountySan DiegoNapa CountyNapaMendocino CountyMendocinoYolo CountyYoloShasta CountyShastaSan Mateo CountySan MateoAlameda CountyAlamedaDel Norte CountyDel NorteEl Dorado CountyEl DoradoSanta Rosa Metro AreaSanta RosaSonoma CountySonomaMarin CountyMarinLake CountyLakeButte CountyButteSiskiyou CountySiskiyouSanta Cruz CountySanta CruzHumboldt CountyHumboldtSan Luis Obispo CountySan Luis ObispoCalaveras CountyCalaverasNevada CountyNevadaTuolumne CountyTuolumneLassen CountyLassenAmador CountyAmadorSan Francisco CountySan Francisco31.582885%31.582885%31.6%143,945144k130.114981%30.114981%30.1%79,80579.8k229.467014%29.467014%29.5%256,757257k328.888866%28.888866%28.9%278,246278k428.713082%28.713082%28.7%51,34151.3k527.910500%27.910500%27.9%199,521200k627.884759%27.884759%27.9%20,60620.6k727.817117%27.817117%27.8%42,66242.7k827.788961%27.788961%27.8%5,936927.506139%27.506139%27.5%41,33141.3k1027.435111%27.435111%27.4%145,560146k1127.363518%27.363518%27.4%576,482576k1227.066057%27.066057%27.1%7,5721327.058965%27.058965%27.1%15,70815.7k1426.473439%26.473439%26.5%113,889114k1526.401700%26.401700%26.4%613,547614k1626.392470%26.392470%26.4%25,18025.2k1724.396471%24.396471%24.4%360,897361k1824.216057%24.216057%24.2%204,168204k1924.056177%24.056177%24.1%15,15915.2k2023.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.527315%23.527315%23.5%260,665261k2123.336041%23.336041%23.3%12,102,10512.1M23.108006%23.108006%23.1%73,612,43873.6M23.087802%23.087802%23.1%435,218435k2223.024375%23.024375%23.0%721,172721k2323.007663%23.007663%23.0%98,84098.8k2422.975624%22.975624%23.0%85,14185.1k2522.837323%22.837323%22.8%2,296,7852.30M2622.501394%22.501394%22.5%98,87098.9k2722.366565%22.366565%22.4%727,664728k2821.908353%21.908353%21.9%30,85230.9k2921.786086%21.786086%21.8%19,04319.0k3021.678248%21.678248%21.7%45,45345.5k3121.660678%21.660678%21.7%38,82238.8k3221.522415%21.522415%21.5%162,440162k3321.443331%21.443331%21.4%344,212344k3421.192269%21.192269%21.2%5,8553520.986885%20.986885%21.0%38,40638.4k3620.626748%20.626748%20.6%102,675103k20.626748%20.626748%20.6%102,675103k3720.514887%20.514887%20.5%53,20753.2k3820.332106%20.332106%20.3%13,02813.0k3920.311153%20.311153%20.3%45,47245.5k4020.245947%20.245947%20.2%8,8414120.123943%20.123943%20.1%54,52254.5k4219.528488%19.528488%19.5%26,39926.4k4318.233099%18.233099%18.2%50,81250.8k4417.956103%17.956103%18.0%8,0424517.790124%17.790124%17.8%17,54817.5k4616.677187%16.677187%16.7%8,9834716.472061%16.472061%16.5%5,2624815.542570%15.542570%15.5%5,7454913.481174%13.481174%13.5%114,628115k50
Count number of children
# rank of county out of 50 by %

Age Cohorts by County in the United States

There are 3,142 counties in the United States. This section compares Sonoma County to the 50 most populous counties in the United States and to those entities that contain or substantially overlap with Sonoma County. The least populous of the compared counties has a population of 941,618.

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of Sonoma County, selected other counties in the United States, and entities that contain Sonoma County
0%5%10%15%20%25%Count#Fresno CountyFresnoSalt Lake CountySalt LakeSan Bernardino CountySan BernardinoHarris CountyHarrisTarrant CountyTarrantDallas CountyDallasRiverside CountyRiversideBexar CountyBexarBronx CountyBronxMaricopa CountyMaricopaWake CountyWakeMecklenburg CountyMecklenburgMilwaukee CountyMilwaukeeSacramento CountySacramentoWayne CountyWayneFairfax CountyFairfaxClark CountyClarkWestFranklin CountyFranklinCaliforniaFairfield CountyFairfieldMontgomery CountyMontgomeryContra Costa CountyContra CostaKings CountyKingsPacificHillsborough CountyHillsboroughUnited States of AmericaUnited StatesSanta Clara CountySanta ClaraTravis CountyTravisOrange CountyOrangeWestchester CountyWestchesterFulton CountyFultonLos Angeles CountyLos AngelesOrange CountyOrangeCook CountyCookSt. Louis CountySt. LouisSan Diego CountySan DiegoSuffolk CountySuffolkHennepin CountyHennepinPhiladelphia CountyPhiladelphiaNassau CountyNassauOakland CountyOaklandPima CountyPimaHonolulu CountyHonoluluBroward CountyBrowardCuyahoga CountyCuyahogaAlameda CountyAlamedaKing CountyKingSanta Rosa Metro AreaSanta RosaSonoma CountySonomaMiami-Dade CountyMiami-DadeMiddlesex CountyMiddlesexQueens CountyQueensPalm Beach CountyPalm BeachAllegheny CountyAlleghenyNew York CountyNew York28.888866%28.888866%28.9%278,246278k128.329602%28.329602%28.3%309,506310k227.363518%27.363518%27.4%576,482576k327.228891%27.228891%27.2%1,207,3991.21M427.104397%27.104397%27.1%527,866528k526.929187%26.929187%26.9%676,745677k626.401700%26.401700%26.4%613,547614k726.219361%26.219361%26.2%487,339487k825.573137%25.573137%25.6%367,431367k925.043628%25.043628%25.0%1,023,9211.02M1024.990987%24.990987%25.0%249,554250k1124.574361%24.574361%24.6%248,637249k1224.468076%24.468076%24.5%233,745234k1324.396471%24.396471%24.4%360,897361k1424.179435%24.179435%24.2%427,394427k1523.983328%23.983328%24.0%271,704272k1623.862053%23.862053%23.9%493,981494k1723.760486%23.760486%23.8%17,834,66617.8M23.668593%23.668593%23.7%291,625292k1823.646283%23.646283%23.6%9,140,2839.14M23.577077%23.577077%23.6%222,006222k1923.549379%23.549379%23.5%241,704242k2023.527315%23.527315%23.5%260,665261k2123.337305%23.337305%23.3%608,369608k2223.336041%23.336041%23.3%12,102,10512.1M23.197227%23.197227%23.2%306,913307k2323.108006%23.108006%23.1%73,612,43873.6M23.087802%23.087802%23.1%435,218435k2423.030006%23.030006%23.0%264,425264k2523.024375%23.024375%23.0%721,172721k2622.943185%22.943185%22.9%222,372222k2722.934276%22.934276%22.9%228,599229k2822.837323%22.837323%22.8%2,296,7852.30M2922.760229%22.760229%22.8%285,881286k3022.694997%22.694997%22.7%1,186,3981.19M3122.432138%22.432138%22.4%224,447224k3222.366565%22.366565%22.4%727,664728k3322.324565%22.324565%22.3%334,451334k3422.273612%22.273612%22.3%269,347269k3522.168125%22.168125%22.2%345,809346k3622.141419%22.141419%22.1%300,415300k3722.121412%22.121412%22.1%273,247273k3821.856045%21.856045%21.9%219,290219k3921.601744%21.601744%21.6%213,209213k4021.598472%21.598472%21.6%402,548403k4121.569623%21.569623%21.6%271,499271k4221.443331%21.443331%21.4%344,212344k4320.896492%20.896492%20.9%434,553435k4420.626748%20.626748%20.6%102,675103k20.626748%20.626748%20.6%102,675103k20.604500%20.604500%20.6%548,990549k4520.568254%20.568254%20.6%322,430322k4620.470812%20.470812%20.5%472,878473k4719.641010%19.641010%19.6%274,730275k4819.092867%19.092867%19.1%234,911235k4914.639548%14.639548%14.6%239,355239k50
Count number of children
# rank of county 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.

More Topics to Explore

Demographics

Income

Education

More Maps to Explore

Principal City:
Santa Rosa
Cities:
Cloverdale, Cotati, Healdsburg, Petaluma, Rohnert Park, Santa Rosa, Sebastopol, Sonoma
Towns:
Windsor
Unincorporated Places:
Bloomfield, Bodega, Bodega Bay, Boyes Hot Springs, Carmet, Cazadero, El Verano, Eldridge, Fetters Hot Springs-Agua Caliente, Forestville, Fulton, Geyserville, Glen Ellen, Graton, Guerneville, Jenner, Kenwood, Larkfield-Wikiup, Monte Rio, Occidental, Penngrove, Roseland, Salmon Creek, Sea Ranch, Sereno del Mar, Temelec, Timber Cove, Valley Ford
ZIP Codes:
94515, 94922, 94923, 94928, 94931, 94951, 94952, 94954, 95401, 95403, 95404, 95405, 95407, 95409, 95412, 95421, 95425, 95430, 95431, 95436, 95439, 95441, 95442, 95444, 95446, 95448, 95450, 95452, 95462, 95465, 95471, 95472, 95476, 95486, 95492, 95497
Unified School Districts:
Calistoga, Cloverdale, Cotati-Rohnert Park, Geyserville, Healdsburg, Shoreline, Sonoma Valley, Windsor
Elementary School Districts:
Alexander Valley, Bellevue, Bennett Valley, Cinnabar, Dunham, Forestville, Fort Ross, Gravenstein, Guerneville, Harmony, Horicon, Kashia, Kenwood, Laguna, Liberty, Mark West, Monte Rio, Montgomery, Oak Grove, Old Adobe, Petaluma City, Piner-Olivet, Rincon Valley, Roseland, Santa Rosa, Sebastopol, Twin Hills, Two Rock, Waugh, West Side, Wilmar, Wright
Secondary School Districts:
Petaluma, Point Arena, Santa Rosa, West Sonoma County
Congressional Districts:
CA-2, CA-5
State Senate Districts:
CA-2, CA-3
Assembly Districts:
CA-2, CA-4, CA-10
Neighboring Counties:
Contra Costa, Lake, Marin, Mendocino, Napa, Solano
Nearby Counties:
Colusa, San Francisco