Age and Sex in Montgomery County, Maryland (County)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the counties in Maryland.
Scope: population of Maryland, Montgomery County, and other counties in Maryland
Montgomery County
Maryland
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-421,07721.1k2.054%2.05%17,59317.6k1.714%1.71%23,41023.4k2.281%2.28%32,45232.5k3.162%3.16%25,53425.5k2.488%2.49%20,62120.6k2.009%2.01%34,80634.8k3.391%3.39%26,32626.3k2.565%2.56%70,84970.8k6.903%6.90%76,35976.4k7.440%7.44%74,54174.5k7.263%7.26%70,90470.9k6.908%6.91%71,97172.0k7.012%7.01%71,47671.5k6.964%6.96%66,05866.1k6.436%6.44%37,77537.8k3.680%3.68%10,07110.1k0.981%0.98%10,21210.2k0.995%0.99%22,63222.6k2.205%2.21%40,65940.7k3.961%3.96%67,12767.1k6.540%6.54%67,11967.1k6.539%6.54%66,79966.8k6.508%6.51%
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 Maryland and Montgomery County
Female Male
Maryland
Montgomery County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.162720%-0.055316%-0.164283%-0.053641%-0.218036%0.22%0.162720%0.164283%0.162720%0.16%140,687141k13.707%13.7%-0.650431%-0.077917%-0.653293%-0.058353%-0.728349%0.73%0.650431%0.653293%0.650431%0.65%353,785354k34.470%34.5%-0.658583%-0.021316%-0.660931%-0.018473%-0.679898%0.68%0.658583%0.660931%0.658583%0.66%247,280247k24.093%24.1%-0.493608%-0.653144%-0.493608%0.49%0.493608%0.058093%0.653144%0.037807%0.551701%0.55%42,91542.9k4.181%4.18%-0.641056%-0.615877%-0.641056%0.64%0.641056%0.026187%0.615877%0.024614%0.667243%0.67%241,704242k23.549%23.5%
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 Maryland and Montgomery County
Female Male
Maryland
Montgomery County
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.042967%-0.042413%-0.037657%-0.037457%-0.085380%0.09%0.042967%0.037657%0.042967%0.04%21,07721.1k2.054%2.05%-0.139638%-0.063544%-0.134972%-0.067454%-0.203182%0.20%0.139638%0.134972%0.139638%0.14%17,59317.6k1.714%1.71%-0.193536%-0.069098%-0.196741%-0.063142%-0.262634%0.26%0.193536%0.196741%0.193536%0.19%23,41023.4k2.281%2.28%-0.282568%-0.067227%-0.294971%-0.063303%-0.349796%0.35%0.282568%0.294971%0.282568%0.28%32,45232.5k3.162%3.16%-0.383747%-0.061771%-0.407412%-0.059112%-0.445518%0.45%0.383747%0.407412%0.383747%0.38%25,53425.5k2.488%2.49%-0.470249%-0.064061%-0.478011%-0.092468%-0.534310%0.53%0.470249%0.478011%0.470249%0.47%20,62120.6k2.009%2.01%-0.530477%-0.069436%-0.528415%-0.087697%-0.599913%0.60%0.530477%0.528415%0.530477%0.53%34,80634.8k3.391%3.39%-0.588189%-0.106102%-0.592585%-0.076897%-0.694291%0.69%0.588189%0.592585%0.588189%0.59%26,32626.3k2.565%2.56%-0.658144%-0.064285%-0.661612%-0.057692%-0.722429%0.72%0.658144%0.661612%0.658144%0.66%70,84970.8k6.903%6.90%-0.704521%-0.078899%-0.726394%-0.061571%-0.783420%0.78%0.704521%0.726394%0.704521%0.70%76,35976.4k7.440%7.44%-0.687705%-0.077107%-0.686773%-0.054961%-0.764811%0.76%0.687705%0.686773%0.687705%0.69%74,54174.5k7.263%7.26%-0.648226%-0.085193%-0.637604%-0.034165%-0.733419%0.73%0.648226%0.637604%0.648226%0.65%70,90470.9k6.908%6.91%-0.692849%-0.016739%-0.613926%-0.041531%-0.709587%0.71%0.692849%0.613926%0.692849%0.69%71,97172.0k7.012%7.01%-0.679345%-0.034101%-0.667390%-0.027078%-0.713446%0.71%0.679345%0.667390%0.679345%0.68%71,47671.5k6.964%6.96%-0.631818%-0.023578%-0.694488%-0.002876%-0.655397%0.66%0.631818%0.694488%0.631818%0.63%66,05866.1k6.436%6.44%-0.611475%-0.003865%-0.664278%-0.615340%0.62%0.611475%0.664278%0.008300%0.611475%0.61%37,77537.8k3.680%3.68%-0.470493%-0.658467%-0.470493%0.47%0.470493%0.040239%0.658467%0.041192%0.510731%0.51%10,07110.1k0.981%0.98%-0.442238%-0.646789%-0.442238%0.44%0.442238%0.110486%0.646789%0.058994%0.552724%0.55%10,21210.2k0.995%0.99%-0.530851%-0.653660%-0.530851%0.53%0.530851%0.040823%0.653660%0.025521%0.571674%0.57%22,63222.6k2.205%2.21%-0.647069%-0.633478%-0.647069%0.65%0.647069%0.026339%0.633478%0.024352%0.673408%0.67%40,65940.7k3.961%3.96%-0.652337%-0.619997%-0.652337%0.65%0.652337%0.003371%0.619997%0.018336%0.655708%0.66%67,12767.1k6.540%6.54%-0.633942%-0.612695%-0.633942%0.63%0.633942%0.040005%0.612695%0.031011%0.673947%0.67%67,11967.1k6.539%6.54%-0.633280%-0.604379%-0.633280%0.63%0.633280%0.035095%0.604379%0.024655%0.668374%0.67%66,79966.8k6.508%6.51%
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 Maryland and Montgomery County
More Females More Males
Maryland
Montgomery County
50%0%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-98.710317%-99.468100%-98.710317%98.7%0.5030.5066.523%66.5%33.477%33.5%-45.506559%-49.976380%-45.506559%45.5%0.6870.6959.268%59.3%40.732%40.7%-35.702779%-32.093880%-35.702779%35.7%0.7370.7457.574%57.6%42.426%42.4%-23.791463%-21.460751%-23.791463%23.8%0.8080.8155.316%55.3%44.684%44.7%-16.096818%-14.509088%-16.096818%16.1%0.8610.8653.724%53.7%46.276%46.3%-13.622708%-19.344308%-13.622708%13.6%0.8800.8853.188%53.2%46.812%46.8%-13.089262%-16.596281%-13.089262%13.1%0.8840.8853.071%53.1%46.929%46.9%-18.038761%-12.976570%-18.038761%18.0%0.8470.8554.137%54.1%45.863%45.9%-9.767580%-8.719954%-9.767580%9.8%0.9110.9152.328%52.3%47.672%47.7%-11.199004%-8.476315%-11.199004%11.2%0.8990.9052.651%52.7%47.349%47.3%-11.212173%-8.002736%-11.212173%11.2%0.8990.9052.654%52.7%47.346%47.3%-13.142548%-5.358336%-13.142548%13.1%0.8840.8853.083%53.1%46.917%46.9%-2.415907%-6.764801%-2.415907%2.4%0.9760.9850.597%50.6%49.403%49.4%-5.019648%-4.057241%-5.019648%5.0%0.9520.9551.224%51.2%48.776%48.8%-3.731804%-0.414102%-3.731804%3.7%0.9640.9650.916%50.9%49.084%49.1%-0.632037%-0.632037%0.6%1.249463%0.9940.9950.158%50.2%49.842%49.8%8.552495%6.255733%8.552495%8.6%1.0861.0947.950%47.9%52.050%52.1%24.983477%9.121096%24.983477%25.0%1.2501.2544.448%44.4%55.552%55.6%7.690190%3.904255%7.690190%7.7%1.0771.0848.149%48.1%51.851%51.9%4.070468%3.844116%4.070468%4.1%1.0411.0449.003%49.0%50.997%51.0%0.516773%2.957414%0.516773%0.5%1.0051.0149.871%49.9%50.129%50.1%6.310515%5.061343%6.310515%6.3%1.0631.0648.471%48.5%51.529%51.5%5.541709%4.079355%5.541709%5.5%1.0551.0648.652%48.7%51.348%51.3%
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 Montgomery County

Children Age Cohorts by County Subdivision#5

Percentage of population aged 0 to 17 (%):
17.1%19.3%21.5%23.7%25.9%28.2%

College Age Cohorts by County Subdivision#6

Percentage of population aged 18 to 21 (%):
2.6%3.8%5.0%6.1%7.3%8.5%

20s Age Cohorts by County Subdivision#7

Percentage of population aged 22 to 29 (%):
5.1%6.4%7.8%9.1%10.4%11.7%

30s Age Cohorts by County Subdivision#8

Percentage of population aged 30 to 39 (%):
7.3%9.3%11.3%13.3%15.3%17.4%

40s Age Cohorts by County Subdivision#9

Percentage of population aged 40 to 49 (%):
12.5%13.4%14.3%15.2%16.0%17.0%

50s Age Cohorts by County Subdivision#10

Percentage of population aged 50 to 59 (%):
12.6%14.1%15.6%17.1%18.6%20.2%

60s Age Cohorts by County Subdivision#11

Percentage of population aged 60 to 69 (%):
6.6%9.0%11.3%13.6%15.9%18.3%

70s Age Cohorts by County Subdivision#12

Percentage of population aged 70 to 79 (%):
2.6%4.0%5.4%6.8%8.2%9.7%

80+ Age Cohorts by County Subdivision#13

Percentage of population aged 80 and older (%):
1.2%2.3%3.4%4.4%5.5%6.6%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Tract in Montgomery County

Children Age Cohorts by Tract#14

Percentage of population aged 0 to 17 (%):
0%7%14%22%29%37%

College Age Cohorts by Tract#15

Percentage of population aged 18 to 21 (%):
0.0%2.2%4.4%6.6%8.8%11.0%

20s Age Cohorts by Tract#16

Percentage of population aged 22 to 29 (%):
0%7%13%20%26%34%

30s Age Cohorts by Tract#17

Percentage of population aged 30 to 39 (%):
0%6%12%17%23%29%

40s Age Cohorts by Tract#18

Percentage of population aged 40 to 49 (%):
0.6%5.2%9.7%14.2%18.7%23.2%

50s Age Cohorts by Tract#19

Percentage of population aged 50 to 59 (%):
2.6%7.0%11.3%15.6%19.8%24.2%

60s Age Cohorts by Tract#20

Percentage of population aged 60 to 69 (%):
2.2%6.0%9.8%13.6%17.4%21.3%

70s Age Cohorts by Tract#21

Percentage of population aged 70 to 79 (%):
0%7%13%19%25%32%

80+ Age Cohorts by Tract#22

Percentage of population aged 80 and older (%):
0%12%23%35%47%59%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block Group in Montgomery County

Children Age Cohorts by Block Group#23

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

College Age Cohorts by Block Group#24

Percentage of population aged 18 to 21 (%):
0.0%3.2%6.3%9.5%12.7%15.9%

20s Age Cohorts by Block Group#25

Percentage of population aged 22 to 29 (%):
0%9%17%26%34%43%

30s Age Cohorts by Block Group#26

Percentage of population aged 30 to 39 (%):
0%9%17%26%34%44%

40s Age Cohorts by Block Group#27

Percentage of population aged 40 to 49 (%):
0%7%13%20%27%34%

50s Age Cohorts by Block Group#28

Percentage of population aged 50 to 59 (%):
0%6%12%19%25%31%

60s Age Cohorts by Block Group#29

Percentage of population aged 60 to 69 (%):
0%8%16%24%31%40%

70s Age Cohorts by Block Group#30

Percentage of population aged 70 to 79 (%):
0%7%14%21%28%36%

80+ Age Cohorts by Block Group#31

Percentage of population aged 80 and older (%):
0%15%31%46%62%78%
Road Data ©OpenStreetMap

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Age Cohorts by Place in Montgomery County

There are 56 places that are fully or partially contained within Montgomery County (54 fully and 2 partially). This section compares all 56 of those to each other, Montgomery County, and other entities that contain or substantially overlap with Montgomery County.

Children by Place#32

Percentage of population aged 0 to 17 (%):
Scope: population of Montgomery County, selected places in Montgomery County, and entities that contain Montgomery County
0%10%20%30%Count#ClarksburgGlen EchoChevy Chase Section FiveChevy Chase Secti…Martin's AdditionsSomersetChevy ChaseChevy Chase ViewChevy Chase VwSouth KensingtonS KensingtonKensingtonBrookmontKemp MillPoolesvilleFour CornersDamascusChevy Chase Section ThreeChevy Chase Secti…GermantownGarrett ParkTravilahBurtonsvilleNorth PotomacMontgomery VillageMontgomery VlgChevy Chase VillageChevy Chase VlgChevy ChaseCabin JohnPotomacAshton-Sandy SpringAshton-Sandy SpgGaithersburgDerwoodWhite OakOlneyWheatonDarnestownMontgomery County Public SchoolsMontgomery CoMontgomery CountyMontgomerySouthWashington, Arlington, and Alexandria Metro AreaWashingtonUnited States of AmericaUnited StatesRedlandMarylandSouth AtlanticSilver SpringNorth KensingtonN KensingtonRockvilleCloverlyWashington GroveWashington GrvCalvertonBrookevilleFriendship Heights VillageFriendship Hts VlgLeisure World33.173524%33.173524%33.2%6,781131.736527%31.736527%31.7%106229.485179%29.485179%29.5%189329.385965%29.385965%29.4%268429.135802%29.135802%29.1%354529.104478%29.104478%29.1%858628.342246%28.342246%28.3%265728.219304%28.219304%28.2%2,450827.333018%27.333018%27.3%577927.244094%27.244094%27.2%1,0381027.058268%27.058268%27.1%3,4411127.055599%27.055599%27.1%1,3821227.047464%27.047464%27.0%2,3251326.938408%26.938408%26.9%4,1901426.875853%26.875853%26.9%1971526.748735%26.748735%26.7%24,20624.2k1626.748582%26.748582%26.7%2831726.235453%26.235453%26.2%3,1111826.118268%26.118268%26.1%2,5751925.761968%25.761968%25.8%6,2212025.387568%25.387568%25.4%8,4012125.369458%25.369458%25.4%5152225.317114%25.317114%25.3%2,4352325.076609%25.076609%25.1%4912424.920448%24.920448%24.9%11,43411.4k2524.684595%24.684595%24.7%1,4872624.425148%24.425148%24.4%16,14616.1k2724.403579%24.403579%24.4%4912824.135012%24.135012%24.1%4,5622924.040638%24.040638%24.0%8,4953023.800338%23.800338%23.8%11,84411.8k3223.644185%23.644185%23.6%1,5393623.549379%23.549379%23.5%241,704242k23.549379%23.549379%23.5%241,704242k23.464217%23.464217%23.5%28,099,74328.1M23.321271%23.321271%23.3%1,402,0171.40M23.108006%23.108006%23.1%73,612,43873.6M22.815067%22.815067%22.8%4,0284022.614634%22.614634%22.6%1,347,8101.35M22.148630%22.148630%22.1%13,847,14713.8M21.813732%21.813732%21.8%17,02317.0k4321.618603%21.618603%21.6%2,1294421.098341%21.098341%21.1%13,75013.8k4520.761269%20.761269%20.8%3,1094819.392917%19.392917%19.4%1155219.170872%19.170872%19.2%3,5335316.770186%16.770186%16.8%27549.577167%9.577167%9.6%453553.602040%3.602040%3.6%33256
Count number of children
# rank of place out of 56 by %

Age Cohorts by County Subdivision in Montgomery County

There are 13 county subdivisions in Montgomery County. This section compares all 13 of those to each other, Montgomery County, and other entities that contain or substantially overlap with Montgomery County.

Children by County Subdivision#41

Percentage of population aged 0 to 17 (%):
Scope: population of Montgomery County, selected county subdivisions in Montgomery County, and entities that contain Montgomery County
0%5%10%15%20%25%Count#Montgomery District 22Montgomery District 66Montgomery District 33Montgomery District 99Montgomery District 1212Montgomery District 11Montgomery District 1010Montgomery County Public SchoolsMontgomery CoMontgomery CountyMontgomerySouthWashington, Arlington, and Alexandria Metro AreaWashingtonMontgomery District 88Montgomery District 77United States of AmericaUnited StatesMontgomery District 55MarylandMontgomery District 1313South AtlanticMontgomery District 44Montgomery District 111128.137099%28.137099%28.1%15,26115.3k125.948161%25.948161%25.9%13,48513.5k225.159567%25.159567%25.2%1,695324.913737%24.913737%24.9%44,91044.9k424.623539%24.623539%24.6%4,971524.533162%24.533162%24.5%5,334623.840919%23.840919%23.8%8,968723.549379%23.549379%23.5%241,704242k23.549379%23.549379%23.5%241,704242k23.464217%23.464217%23.5%28,099,74328.1M23.321271%23.321271%23.3%1,402,0171.40M23.226004%23.226004%23.2%11,36111.4k823.210218%23.210218%23.2%23,13223.1k923.108006%23.108006%23.1%73,612,43873.6M22.619436%22.619436%22.6%24,94224.9k1022.614634%22.614634%22.6%1,347,8101.35M22.603366%22.603366%22.6%59,81859.8k1122.148630%22.148630%22.1%13,847,14713.8M21.453339%21.453339%21.5%27,47127.5k1217.107160%17.107160%17.1%35613
Count number of children
# rank of county subdivision out of 13 by %

Age Cohorts by County in the Washington Area

There are 24 counties in the Washington Area. This section compares Montgomery County to all of the counties in the Washington Area and to those entities that contain or substantially overlap with Montgomery County.

Children by County#50

Percentage of population aged 0 to 17 (%):
Scope: population of Montgomery County, selected other counties in the Washington Area, and entities that contain Montgomery County
0%10%20%Count#Loudoun CountyLoudounPrince William CountyPrince WilliamManassas Park CityManassas ParkManassas CityManassasStafford CountyStaffordSpotsylvania CountySpotsylvaniaCulpeper CountyCulpeperCharles CountyCharlesFalls Church CityFalls ChurchCalvert CountyCalvertFrederick CountyFrederickFairfax CountyFairfaxFauquier CountyFauquierMontgomery County Public SchoolsMontgomery CoMontgomery CountyMontgomerySouthWashington, Arlington, and Alexandria Metro AreaWashingtonUnited States of AmericaUnited StatesJefferson CountyJeffersonWarren CountyWarrenPrince George's CountyPrince George'sMarylandSouth AtlanticClarke CountyClarkeFairfax CityFairfaxFredericksburg CityFredericksburgRappahannock CountyRappahannockAlexandria CityAlexandriaDistrict of ColumbiaArlington CountyArlington29.379889%29.379889%29.4%106,483106k128.010504%28.010504%28.0%124,263124k227.225627%27.225627%27.2%4,309326.848769%26.848769%26.8%11,04811.0k426.773583%26.773583%26.8%37,36237.4k525.800234%25.800234%25.8%33,32933.3k625.228796%25.228796%25.2%12,35012.4k724.868973%24.868973%24.9%38,38738.4k824.689270%24.689270%24.7%3,357924.238073%24.238073%24.2%21,94221.9k1023.997700%23.997700%24.0%58,42658.4k1123.983328%23.983328%24.0%271,704272k1223.939728%23.939728%23.9%16,28516.3k1323.549379%23.549379%23.5%241,704242k23.549379%23.549379%23.5%241,704242k1423.464217%23.464217%23.5%28,099,74328.1M23.321271%23.321271%23.3%1,402,0171.40M23.108006%23.108006%23.1%73,612,43873.6M22.985360%22.985360%23.0%12,76412.8k1522.781972%22.781972%22.8%8,8411622.694730%22.694730%22.7%203,729204k1722.614634%22.614634%22.6%1,347,8101.35M22.148630%22.148630%22.1%13,847,14713.8M21.625778%21.625778%21.6%3,0941820.880610%20.880610%20.9%4,9321920.820019%20.820019%20.8%5,7992018.406149%18.406149%18.4%1,3652118.030936%18.030936%18.0%27,31227.3k2217.402645%17.402645%17.4%114,685115k2317.049254%17.049254%17.0%38,54738.5k24
Count number of children
# rank of county out of 24 by %

Age Cohorts by County in Maryland

There are 24 counties in Maryland. This section compares Montgomery County to all of the counties in Maryland and to those entities that contain or substantially overlap with Montgomery County.

Children by County#59

Percentage of population aged 0 to 17 (%):
Scope: population of Montgomery County, selected other counties in Maryland, and entities that contain Montgomery County
0%5%10%15%20%Count#St. Mary's CountySt. Mary'sCharles CountyCharlesHoward CountyHowardCalvert CountyCalvertFrederick CountyFrederickCaroline CountyCarolineMontgomery County Public SchoolsMontgomery CoMontgomery CountyMontgomeryCecil CountyCecilSouthWashington, Arlington, and Alexandria Metro AreaWashingtonUnited States of AmericaUnited StatesHarford CountyHarfordPrince George's CountyPrince George'sAnne Arundel CountyAnne ArundelMarylandCarroll CountyCarrollWashington CountyWashingtonQueen Anne's CountyQueen Anne'sSouth AtlanticWicomico CountyWicomicoBaltimore CountyBaltimoreDorchester CountyDorchesterBaltimore CityBaltimoreGarrett CountyGarrettTalbot CountyTalbotWorcester CountyWorcesterAllegany CountyAlleganySomerset CountySomersetKent CountyKent24.922521%24.922521%24.9%27,58327.6k124.868973%24.868973%24.9%38,38738.4k224.733260%24.733260%24.7%76,28976.3k324.238073%24.238073%24.2%21,94221.9k423.997700%23.997700%24.0%58,42658.4k523.927357%23.927357%23.9%7,813623.549379%23.549379%23.5%241,704242k23.549379%23.549379%23.5%241,704242k723.535111%23.535111%23.5%24,04724.0k823.464217%23.464217%23.5%28,099,74328.1M23.321271%23.321271%23.3%1,402,0171.40M23.108006%23.108006%23.1%73,612,43873.6M23.019025%23.019025%23.0%57,49657.5k922.694730%22.694730%22.7%203,729204k1022.654211%22.654211%22.7%126,804127k1122.614634%22.614634%22.6%1,347,8101.35M22.534396%22.534396%22.5%37,75337.8k1222.321840%22.321840%22.3%33,38733.4k1322.302513%22.302513%22.3%10,86410.9k1422.148630%22.148630%22.1%13,847,14713.8M21.979375%21.979375%22.0%22,31522.3k1521.632718%21.632718%21.6%178,614179k1621.207359%21.207359%21.2%6,8821721.123671%21.123671%21.1%131,178131k1819.911042%19.911042%19.9%5,9091918.697568%18.697568%18.7%7,0432017.748489%17.748489%17.7%9,1302117.612921%17.612921%17.6%12,86812.9k2216.850071%16.850071%16.9%4,3642316.564912%16.564912%16.6%3,28324
Count number of children
# rank of county out of 24 by %

Age Cohorts by County in the United States

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

Children by County#68

Percentage of population aged 0 to 17 (%):
Scope: population of Montgomery County, selected other counties in the United States, and entities that contain Montgomery 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 CountyClarkFranklin CountyFranklinFairfield CountyFairfieldMontgomery County Public SchoolsMontgomery CoMontgomery CountyMontgomeryContra Costa CountyContra CostaSouthKings CountyKingsWashington, Arlington, and Alexandria Metro AreaWashingtonHillsborough CountyHillsboroughUnited States of AmericaUnited StatesSanta Clara CountySanta ClaraTravis CountyTravisOrange CountyOrangeWestchester CountyWestchesterFulton CountyFultonLos Angeles CountyLos AngelesOrange CountyOrangeCook CountyCookMarylandSt. Louis CountySt. LouisSan Diego CountySan DiegoSuffolk CountySuffolkHennepin CountyHennepinPhiladelphia CountyPhiladelphiaSouth AtlanticNassau CountyNassauOakland CountyOaklandPima CountyPimaHonolulu CountyHonoluluBroward CountyBrowardCuyahoga CountyCuyahogaAlameda CountyAlamedaKing CountyKingMiami-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%493,981494k1723.668593%23.668593%23.7%291,625292k1823.577077%23.577077%23.6%222,006222k1923.549379%23.549379%23.5%241,704242k23.549379%23.549379%23.5%241,704242k2023.527315%23.527315%23.5%260,665261k2123.464217%23.464217%23.5%28,099,74328.1M23.337305%23.337305%23.3%608,369608k2223.321271%23.321271%23.3%1,402,0171.40M23.197227%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%1,186,3981.19M3122.614634%22.614634%22.6%1,347,8101.35M22.432138%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%345,809346k3622.148630%22.148630%22.1%13,847,14713.8M22.141419%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%434,553435k4420.604500%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

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More Maps to Explore

Principal Cities:
Gaithersburg, Rockville
Principal Unincorporated Places:
Silver Spring, Bethesda
Cities:
Gaithersburg, Rockville, Takoma Park
Districts:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
Towns:
Barnesville, Brookeville, Chevy Chase, Chevy Chase View, Chevy Chase Village, Garrett Park, Glen Echo, Kensington, Laytonsville, Poolesville, Somerset, Washington Grove
Unincorporated Places:
Ashton-Sandy Spring, Aspen Hill, Bethesda, Brookmont, Burtonsville, Cabin John, Calverton, Chevy Chase, Clarksburg, Cloverly, Colesville, Damascus, Darnestown, Derwood, Fairland, Forest Glen, Four Corners, Friendship Heights Village, Germantown, Glenmont, Hillandale, Kemp Mill, Layhill, Leisure World, Montgomery Village, North Bethesda, North Kensington, North Potomac, Olney, Potomac, Redland, Silver Spring, South Kensington, Spencerville, Travilah, Wheaton, White Oak
Villages:
Chevy Chase Section Five, Chevy Chase Section Three, Martin's Additions, North Chevy Chase
ZIP Codes:
20705, 20707, 20777, 20812, 20814, 20815, 20816, 20817, 20818, 20832, 20833, 20837, 20838, 20839, 20841, 20842, 20850, 20851, 20852, 20853, 20854, 20855, 20860, 20861, 20862, 20866, 20868, 20871, 20872, 20874, 20876, 20877, 20878, 20879, 20880, 20882, 20886, 20895, 20896, 20899, 20901, 20902, 20903, 20904, 20905, 20906, 20910, 20912, 21771
Unified School District:
Montgomery County
Congressional Districts:
MD-3, MD-6, MD-8
State Senate Districts:
MD-14, MD-15, MD-16, MD-17, MD-18, MD-19, MD-20, MD-39
State Legislative Districts:
MD-14, MD-15, MD-16, MD-17, MD-18, MD-19, MD-20, MD-39
Neighboring Counties:
Arlington, District of Columbia, Fairfax, Frederick, Howard, Loudoun, Prince George's
Nearby Cities:
Alexandria, Baltimore, Fairfax, Falls Church, Manassas, Manassas Park
Nearby Counties:
Anne Arundel, Carroll, Jefferson, Prince William