Age and Sex in Block Group 326101-2, Middlesex County, Massachusetts (Block Group)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the block groups in Middlesex County.
Scope: population of Middlesex County, Block Group 326101-2, and other block groups in Middlesex County
Block Group 326101-2
Middlesex County
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0%1%2%3%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4802.497%2.50%521.623%1.62%220.687%0.69%411.280%1.28%712.216%2.22%641.998%2.00%541.685%1.69%802.497%2.50%3089.613%9.61%33510.456%10.5%2929.114%9.11%3109.675%9.68%1304.057%4.06%1364.245%4.24%421.311%1.31%551.717%1.72%320.999%1.00%1093.402%3.40%902.809%2.81%1966.117%6.12%3169.863%9.86%1905.930%5.93%1996.211%6.21%
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 Middlesex County and Block Group 326101-2
Female Male
Middlesex County
Block Group 326101-2
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.120509%-0.045083%-0.166513%-0.056870%-0.165592%0.17%0.120509%0.166513%0.120509%0.12%33010.300%10.3%-0.828964%-0.063670%-0.663083%-0.038374%-0.892634%0.89%0.828964%0.663083%0.828964%0.83%1,37943.040%43.0%-0.306908%-0.711150%-0.306908%0.31%0.306908%0.015605%0.711150%0.005727%0.322514%0.32%36311.330%11.3%-0.811486%-0.179463%-0.683668%-0.990949%0.99%0.811486%0.683668%0.027032%0.811486%0.81%2317.210%7.21%-0.717853%-0.559730%-0.717853%0.72%0.717853%0.126578%0.559730%0.023220%0.844431%0.84%90128.121%28.1%
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 Middlesex County and Block Group 326101-2
Female Male
Middlesex County
Block Group 326101-2
Shaded bar tips show excess over facing bar.
2%1%0%1%2%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.062422%-0.031211%-0.043661%-0.043992%-0.093633%0.1%0.062422%0.043661%0.062422%0.1%802.497%2.50%-0.074906%-0.174782%-0.146963%-0.082163%-0.249688%0.2%0.074906%0.146963%0.074906%0.1%521.623%1.62%-0.068664%-0.207871%-0.059377%-0.068664%0.1%0.068664%0.000000%0.207871%0.068664%0.1%220.687%0.69%-0.068664%-0.288720%-0.050727%-0.068664%0.1%0.068664%0.118602%0.288720%0.187266%0.2%411.280%1.28%-0.228881%-0.280899%-0.372563%-0.092689%-0.509779%0.5%0.228881%0.372563%0.228881%0.2%712.216%2.22%-0.499376%-0.480221%-0.052022%-0.499376%0.5%0.499376%0.000000%0.480221%0.499376%0.5%641.998%2.00%-0.197670%-0.514116%-0.077825%-0.197670%0.2%0.197670%0.166459%0.514116%0.364128%0.4%541.685%1.69%-0.499376%-0.249688%-0.599862%-0.016394%-0.749064%0.7%0.499376%0.599862%0.499376%0.5%802.497%2.50%-0.842697%-0.237203%-0.658990%-0.040354%-1.079900%1.1%0.842697%0.658990%0.842697%0.8%3089.613%9.61%-0.936330%-0.729914%-0.033133%-0.936330%0.9%0.936330%0.218477%0.729914%1.154806%1.2%33510.456%10.5%-0.749064%-0.324594%-0.703287%-0.032993%-1.073658%1.1%0.749064%0.703287%0.749064%0.7%2929.114%9.11%-0.955056%-0.674811%-0.032138%-0.955056%1.0%0.955056%0.024969%0.674811%0.980025%1.0%3109.675%9.68%-0.305868%-0.199750%-0.636676%-0.505618%0.5%0.305868%0.636676%0.001454%0.305868%0.3%1304.057%4.06%-0.312110%-0.224719%-0.740694%-0.536829%0.5%0.312110%0.740694%0.004453%0.312110%0.3%1364.245%4.24%-0.000000%-0.768405%0.000000%0.0%0.000000%0.262172%0.768405%0.005512%0.262172%0.3%421.311%1.31%-0.104037%-0.690605%-0.104037%0.1%0.104037%0.364128%0.690605%0.015331%0.468165%0.5%551.717%1.72%-0.000000%-0.998752%-0.634086%-0.998752%1.0%0.000000%0.634086%0.024241%0.000000%0.0%320.999%1.00%-1.373283%-0.655431%-0.648439%-2.028714%2.0%1.373283%0.648439%0.046313%1.373283%1.4%1093.402%3.40%-0.468165%-0.726073%-0.468165%0.5%0.468165%0.468165%0.726073%0.018787%0.936330%0.9%902.809%2.81%-0.801082%-0.586774%-0.801082%0.8%0.801082%0.436954%0.586774%0.031407%1.238036%1.2%1966.117%6.12%-0.886392%-0.574671%-0.886392%0.9%0.886392%0.199750%0.574671%0.012835%1.086142%1.1%3169.863%9.86%-0.543071%-0.099875%-0.539547%-0.642946%0.6%0.543071%0.539547%0.031959%0.543071%0.5%1905.930%5.93%-0.574282%-0.548746%-0.574282%0.6%0.574282%0.093633%0.548746%0.019954%0.667915%0.7%1996.211%6.21%
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 Middlesex County and Block Group 326101-2
More Females More Males
Middlesex County
Block Group 326101-2
1,000%500%0%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3422-24212018-1915-1710-145-90-4-50.000000%-100.757922%-50.000000%50.0%0.6670.6760.000%60.0%40.000%40.0%-233.333333%-55.907631%-233.333333%233.3%0.3000.3076.923%76.9%23.077%23.1%0.000000%-28.564414%0.000000%0.0%1.0001.0050.000%50.0%50.000%50.0%-17.569598%172.727273%172.727273%172.7%2.7272.7326.829%26.8%73.171%73.2%-122.727273%-24.878717%-122.727273%122.7%0.4490.4569.014%69.0%30.986%31.0%0.000000%-10.832891%0.000000%0.0%1.0001.0050.000%50.0%50.000%50.0%-15.137729%84.210526%84.210526%84.2%1.8421.8435.185%35.2%64.815%64.8%-50.000000%-2.733025%-50.000000%50.0%0.6670.6760.000%60.0%40.000%40.0%-28.148148%-6.123674%-28.148148%28.1%0.7800.7856.169%56.2%43.831%43.8%-4.539337%23.333333%23.333333%23.3%1.2331.2344.776%44.8%55.224%55.2%-43.333333%-4.691242%-43.333333%43.3%0.6980.7058.904%58.9%41.096%41.1%-4.762535%2.614379%2.614379%2.6%1.0261.0349.355%49.4%50.645%50.6%-65.306122%-65.306122%65.3%0.228443%0.6050.6062.308%62.3%37.692%37.7%-72.000000%-72.000000%72.0%0.601144%0.5810.5863.235%63.2%36.765%36.8%350.000000%2.219964%350.000000%350.0%4.5004.5018.182%18.2%81.818%81.8%-1,000.000000%-1,000.000000%> 1000%3.822938%0.0000100.000%100%0.000%0%-47.727273%-47.727273%47.7%7.142154%0.6770.6859.633%59.6%40.367%40.4%100.000000%2.587419%100.000000%100.0%2.0002.0033.333%33.3%66.667%66.7%54.545455%5.352419%54.545455%54.5%1.5451.5539.286%39.3%60.714%60.7%22.535211%2.233421%22.535211%22.5%1.2251.2344.937%44.9%55.063%55.1%-18.390805%-18.390805%18.4%5.923386%0.8450.8454.211%54.2%45.789%45.8%16.304348%3.636279%16.304348%16.3%1.1631.1646.231%46.2%53.769%53.8%
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 Block in Block Group 326101-2

Children Age Cohorts by Block#5

Percentage of population aged 0 to 17 (%):
0%13%27%40%53%67%

College Age Cohorts by Block#6

Percentage of population aged 18 to 21 (%):
0%5%10%15%20%25%

20s Age Cohorts by Block#7

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

30s Age Cohorts by Block#8

Percentage of population aged 30 to 39 (%):
0%7%13%20%27%34%

40s Age Cohorts by Block#9

Percentage of population aged 40 to 49 (%):
0%8%15%23%31%39%

50s Age Cohorts by Block#10

Percentage of population aged 50 to 59 (%):
0%11%23%34%46%58%

60s Age Cohorts by Block#11

Percentage of population aged 60 to 69 (%):
0%7%15%22%29%37%

70s Age Cohorts by Block#12

Percentage of population aged 70 to 79 (%):
0%7%13%20%27%34%

80+ Age Cohorts by Block#13

Percentage of population aged 80 and older (%):
0%17%34%51%68%85%
Road Data ©OpenStreetMap

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Age Cohorts by Block Group in Middlesex County

There are 1,133 block groups in Middlesex County. This section compares Block Group 326101-2 to the 50 most populous block groups in Middlesex County and to those entities that contain or substantially overlap with Block Group 326101-2. The least populous of the compared block groups has a population of 2,793.

Children by Block Group#14

Percentage of population aged 0 to 17 (%):
Scope: population of Block Group 326101-2, selected other block groups in Middlesex County, and entities that contain Block Group 326101-2
0%10%20%30%Count#310200-3B.G. 310200-3365100-3B.G. 365100-3383102-2B.G. 383102-2320104-1B.G. 320104-1320102-3B.G. 320102-3333600-1B.G. 333600-1385202-2B.G. 385202-2318300-4B.G. 318300-4318200-1B.G. 318200-1334300-4B.G. 334300-4361200-3B.G. 361200-3326101-2B.G. 326101-2387201-1B.G. 387201-1321600-1B.G. 321600-1320104-2B.G. 320104-2385100-2B.G. 385100-2320103-1B.G. 320103-1354900-2B.G. 354900-2321500-1B.G. 321500-1342500-1B.G. 342500-1314101-3B.G. 314101-3363104-1B.G. 363104-1326101Tract 326101334100-3B.G. 334100-3338200-1B.G. 338200-1373500-4B.G. 373500-4374700-1B.G. 374700-1Groton-Dunstable School DistrictGroton-DunstableTown of GrotonGrotonZIP Code 01450ZIP 01450331200-2B.G. 331200-2388200-2B.G. 388200-2United States of AmericaUnited States342600-3B.G. 342600-3335302-2B.G. 335302-2326102-1B.G. 326102-1316300-1B.G. 316300-1358300-1B.G. 358300-1Northeast315100-2B.G. 315100-2MassachusettsNew EnglandBoston, Cambridge, and Newton Metro AreaBoston AreaMiddlesex CountyMiddlesex321100-2B.G. 321100-2313102-3B.G. 313102-3321100-1B.G. 321100-1342500-3B.G. 342500-3322300-2B.G. 322300-2332200-2B.G. 332200-2368902-1B.G. 368902-1310601-2B.G. 310601-2333100-1B.G. 333100-1361200-1B.G. 361200-1339801-1B.G. 339801-1373600-1B.G. 373600-1388200-3B.G. 388200-3368400-2B.G. 368400-2368901-1B.G. 368901-1339500-1B.G. 339500-138.924804%38.924804%38.9%1,144137.070938%37.070938%37.1%1,134235.025381%35.025381%35.0%1,104332.420229%32.420229%32.4%1,077431.070315%31.070315%31.1%897530.590278%30.590278%30.6%881630.527679%30.527679%30.5%943730.354659%30.354659%30.4%873829.946692%29.946692%29.9%955929.843861%29.843861%29.8%8411029.228188%29.228188%29.2%8711128.121099%28.121099%28.1%9011227.861163%27.861163%27.9%8911327.821449%27.821449%27.8%9911427.544098%27.544098%27.5%8121527.490602%27.490602%27.5%1,1701627.388316%27.388316%27.4%7971727.383475%27.383475%27.4%1,0341827.365284%27.365284%27.4%1,1021927.250859%27.250859%27.3%7932027.218582%27.218582%27.2%9142127.184769%27.184769%27.2%8712226.921264%26.921264%26.9%1,14226.074896%26.074896%26.1%7522326.072822%26.072822%26.1%8022425.041186%25.041186%25.0%7602524.431222%24.431222%24.4%6982624.344466%24.344466%24.3%3,52824.280093%24.280093%24.3%2,71524.280093%24.280093%24.3%2,71523.535565%23.535565%23.5%6752723.429279%23.429279%23.4%7572823.108006%23.108006%23.1%73,612,43873.6M22.425197%22.425197%22.4%7122922.388060%22.388060%22.4%7503021.770164%21.770164%21.8%6103121.762429%21.762429%21.8%7313221.691974%21.691974%21.7%7003321.341491%21.341491%21.3%11,965,27112.0M20.917917%20.917917%20.9%7113420.624778%20.624778%20.6%1,390,5521.39M20.620396%20.620396%20.6%3,024,7813.02M20.611211%20.611211%20.6%974,672975k20.568254%20.568254%20.6%322,430322k20.506593%20.506593%20.5%5913520.063470%20.063470%20.1%5693618.546904%18.546904%18.5%6053718.470088%18.470088%18.5%5653817.929529%17.929529%17.9%5753916.863588%16.863588%16.9%4714016.007905%16.007905%16.0%4864115.709029%15.709029%15.7%5554215.415959%15.415959%15.4%4544310.954892%10.954892%11.0%3744410.044566%10.044566%10.0%293459.488536%9.488536%9.5%269468.969466%8.969466%9.0%282474.728370%4.728370%4.7%188483.497453%3.497453%3.5%103493.132992%3.132992%3.1%9850
Count number of children
# rank of block group 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

State:
Massachusetts
County:
Middlesex
Metro Area:
Boston Area
Town:
Groton
Unincorporated Place:
Groton
ZIP Code:
01450
Unified School District:
Groton-Dunstable
Congressional District:
MA-3
Upper State Legislative District:
MA-1st Middlesex
Lower State Legislative District:
MA-1st Middlesex
Neighboring Block Groups:
Block Group 326102-1, Block Group 301101-1, Block Group 327103-1, Block Group 388200-1, Block Group 326101-1, Block Group 301102-2, Block Group 325100-2, Block Group 326102-3, Block Group 327103-3