Age and Sex in North Bridge/Monument Square, Massachusetts (Neighborhood)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the neighborhoods in Middlesex County.
Scope: population of Middlesex County, North Bridge/Monument Square, and other neighborhoods in Middlesex County
North Bridge/Monument Square
Middlesex County
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%2.0%2.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-421.133%1.13%783.931%3.93%783.959%3.96%52.637%2.64%673.564%3.56%231.360%1.36%452.537%2.54%84.358%4.36%2513.129%13.1%212211.337%11.3%9105.208%5.21%17189.189%9.19%452.598%2.60%63.364%3.36%10.699%0.70%00.133%0.13%010.427%0.43%00.000%0%120.933%0.93%14157.745%7.74%10115.735%5.73%212211.332%11.3%894.691%4.69%

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Middlesex County and North Bridge/Monument Square
Female Male
Middlesex County
North Bridge/Monument Square
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.184444%-0.091767%-0.166513%-0.056870%-0.276211%0.28%0.184444%0.166513%0.184444%0.18%313216.584%16.6%-0.896281%-0.037751%-0.663083%-0.038374%-0.934032%0.93%0.896281%0.663083%0.896281%0.90%8745.758%45.8%-0.131394%-0.114745%-0.711150%-0.246139%0.25%0.131394%0.711150%0.005727%0.131394%0.13%12136.796%6.80%-0.140172%-0.059705%-0.683668%-0.199878%0.20%0.140172%0.683668%0.027032%0.140172%0.14%231.360%1.36%-0.674555%-0.559730%-0.674555%0.67%0.674555%0.289935%0.559730%0.023220%0.964490%0.96%5629.503%29.5%

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Middlesex County and North Bridge/Monument Square
Female Male
Middlesex County
North Bridge/Monument Square
Shaded bar tips show excess over facing bar.
1%0%1%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.000000%-0.070790%-0.043661%-0.043992%-0.070790%0.1%0.000000%0.043661%0.000000%0.0%21.133%1.13%-0.213203%-0.146963%-0.082163%-0.213203%0.2%0.213203%0.359780%0.146963%0.572983%0.6%783.931%3.93%-0.386430%-0.207871%-0.059377%-0.386430%0.4%0.386430%0.018862%0.207871%0.405292%0.4%783.959%3.96%-0.101031%-0.325375%-0.288720%-0.050727%-0.426406%0.4%0.101031%0.288720%0.101031%0.1%52.637%2.64%-0.414485%-0.359092%-0.372563%-0.092689%-0.773577%0.8%0.414485%0.372563%0.414485%0.4%673.564%3.56%-0.000000%-0.680015%-0.480221%-0.052022%-0.680015%0.7%0.000000%0.480221%0.000000%0.0%231.360%1.36%-0.000000%-0.845705%-0.514116%-0.077825%-0.845705%0.8%0.000000%0.514116%0.000000%0.0%452.537%2.54%-0.566320%-0.599862%-0.016394%-0.566320%0.6%0.566320%1.046286%0.599862%1.612606%1.6%84.358%4.36%-1.094780%-0.436327%-0.658990%-0.040354%-1.531107%1.5%1.094780%0.658990%1.094780%1.1%2513.129%13.1%-1.007126%-0.729914%-0.033133%-1.007126%1.0%1.007126%0.253178%0.729914%1.260304%1.3%212211.337%11.3%-0.351991%-0.337566%-0.703287%-0.032993%-0.689557%0.7%0.351991%0.703287%0.351991%0.4%9105.208%5.21%-0.708418%-0.674811%-0.032138%-0.708418%0.7%0.708418%0.420869%0.674811%1.129288%1.1%17189.189%9.19%-0.213203%-0.636676%-0.213203%0.2%0.213203%0.093276%0.636676%0.001454%0.306479%0.3%452.598%2.60%-0.139889%-0.393118%-0.740694%-0.533007%0.5%0.139889%0.740694%0.004453%0.139889%0.1%63.364%3.36%-0.000000%-0.139889%-0.768405%-0.139889%0.1%0.000000%0.768405%0.005512%0.000000%0.0%10.699%0.70%-0.000000%-0.690605%0.000000%0.0%0.000000%0.044417%0.690605%0.015331%0.044417%0.0%00.133%0.13%-0.000000%-0.634086%0.000000%0.0%0.000000%0.427438%0.634086%0.024241%0.427438%0.4%010.427%0.43%-0.000000%-0.648439%0.000000%0.0%0.000000%0.000000%0.648439%0.046313%0.000000%0.0%00.000%0%-0.066626%-0.333129%-0.726073%-0.399755%0.4%0.066626%0.726073%0.018787%0.066626%0.1%120.933%0.93%-0.971592%-0.586774%-0.971592%1.0%0.971592%0.638406%0.586774%0.031407%1.609998%1.6%14157.745%7.74%-0.341950%-0.463097%-0.574671%-0.805047%0.8%0.341950%0.574671%0.012835%0.341950%0.3%10115.735%5.73%-1.040396%-0.539547%-1.040396%1.0%1.040396%0.185520%0.539547%0.031959%1.225916%1.2%212211.332%11.3%-0.000000%-0.548746%0.000000%0.0%0.000000%0.938299%0.548746%0.019954%0.938299%0.9%894.691%4.69%

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Middlesex County and North Bridge/Monument Square
More Females More Males
Middlesex County
North Bridge/Monument Square
1,000%500%0%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2918-1915-1710-145-9-1,000.000000%-100.757922%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-55.907631%168.750000%168.750000%168.8%2.6882.6927.119%27.1%72.881%72.9%-28.564414%4.881003%4.881003%4.9%1.0491.0548.809%48.8%51.191%51.2%-322.055358%-17.569598%-322.055358%322.1%0.2370.2480.845%80.8%19.155%19.2%-86.635615%-24.878717%-86.635615%86.6%0.5360.5465.113%65.1%34.887%34.9%-1,000.000000%-10.832891%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-1,000.000000%-15.137729%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-2.733025%184.751735%184.751735%184.8%2.8482.8525.991%26.0%74.009%74.0%-39.855214%-6.123674%-39.855214%39.9%0.7150.7258.308%58.3%41.692%41.7%-4.539337%25.138706%25.138706%25.1%1.2511.2544.417%44.4%55.583%55.6%-95.901704%-4.691242%-95.901704%95.9%0.5100.5166.205%66.2%33.795%33.8%-4.762535%59.409706%59.409706%59.4%1.5941.5938.549%38.5%61.451%61.5%43.750000%0.228443%43.750000%43.8%1.4381.4441.026%41.0%58.974%59.0%-281.022198%-281.022198%281.0%0.601144%0.2620.2679.211%79.2%20.789%20.8%-1,000.000000%-1,000.000000%> 1000%0.717274%0.0000100.000%100%0.000%0%-500.000000%-500.000000%500.0%2.587419%0.1670.1785.714%85.7%14.286%14.3%65.707165%5.352419%65.707165%65.7%1.6571.6637.635%37.6%62.365%62.4%-135.428168%-135.428168%135.4%2.233421%0.4250.4270.187%70.2%29.813%29.8%17.831710%5.923386%17.831710%17.8%1.1781.1845.907%45.9%54.093%54.1%

Map of Age Cohorts by Block Group in North Bridge/Monument Square

Children Age Cohorts by Block Group#5

Percentage of population aged 0 to 17 (%):
24.7%26.1%27.5%28.8%30.2%31.6%

College Age Cohorts by Block Group#6

Percentage of population aged 18 to 21 (%):
1.329%1.350%1.371%1.391%1.412%1.433%

20s Age Cohorts by Block Group#7

Percentage of population aged 22 to 29 (%):
0.18%0.62%1.05%1.48%1.91%2.35%

30s Age Cohorts by Block Group#8

Percentage of population aged 30 to 39 (%):
2.3%3.4%4.4%5.4%6.5%7.6%

40s Age Cohorts by Block Group#9

Percentage of population aged 40 to 49 (%):
8.7%10.3%12.0%13.6%15.2%16.9%

50s Age Cohorts by Block Group#10

Percentage of population aged 50 to 59 (%):
21.0%23.4%25.6%27.9%30.2%32.5%

60s Age Cohorts by Block Group#11

Percentage of population aged 60 to 69 (%):
6.2%10.0%13.7%17.4%21.1%24.9%

70s Age Cohorts by Block Group#12

Percentage of population aged 70 to 79 (%):
3.1%4.1%5.1%6.1%7.1%8.1%

80+ Age Cohorts by Block Group#13

Percentage of population aged 80 and older (%):
0.0%1.4%2.9%4.3%5.8%7.3%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block in North Bridge/Monument Square

Children Age Cohorts by Block#14

Percentage of population aged 0 to 17 (%):
0%6%12%18%25%31%

College Age Cohorts by Block#15

Percentage of population aged 18 to 21 (%):
0.0%2.7%5.3%8.0%10.7%13.4%

20s Age Cohorts by Block#16

Percentage of population aged 22 to 29 (%):
0%7%13%20%27%34%

30s Age Cohorts by Block#17

Percentage of population aged 30 to 39 (%):
0.0%2.2%4.4%6.6%8.8%11.0%

40s Age Cohorts by Block#18

Percentage of population aged 40 to 49 (%):
0.0%2.4%4.8%7.3%9.7%12.1%

50s Age Cohorts by Block#19

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

60s Age Cohorts by Block#20

Percentage of population aged 60 to 69 (%):
0%7%13%20%27%34%

70s Age Cohorts by Block#21

Percentage of population aged 70 to 79 (%):
0%20%40%60%80%100%

80+ Age Cohorts by Block#22

Percentage of population aged 80 and older (%):
0.0%1.1%2.2%3.3%4.4%5.5%
Road Data ©OpenStreetMap

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Age Cohorts by Neighborhood in Middlesex County

There are 119 neighborhoods in Middlesex County. This section compares North Bridge/Monument Square to all of the neighborhoods in Middlesex County and to those entities that contain or substantially overlap with North Bridge/Monument Square.

Children by Neighborhood#23

Percentage of population aged 0 to 17 (%):
Scope: population of North Bridge/Monument Square, selected other neighborhoods in Middlesex County, and entities that contain North Bridge/Monument Square
0%10%20%30%Count#Lower Belvidere NeighborhoodLower BelvidereMain Street NeighborhoodMain StreetNorth Bridge/Monument Square NeighborhoodN Brg/Monument …American Mile NeighborhoodAmerican MileSouth East NeighborhoodSouth EastKings View/ Miles Standish NeighborhoodKings Vw/ Miles S…Centralville NeighborhoodCentralvilleEast Chelmsford NeighborhoodE ChelmsfordGlenbrook NeighborhoodGlenbrookWilliams Street NeighborhoodWilliams StBack Central NeighborhoodBack CentralNewtonville NeighborhoodNewtonvilleSouth of Main NeighborhoodSouth of MainOld Mitchell School NeighborhoodOld Mitchell School361300Tract 361300Farms II NeighborhoodFarms IIWaban NeighborhoodWabanWest Chelmsford NeighborhoodW ChelmsfordWest Newton NeighborhoodWest NewtonLower Highlands NeighborhoodLower HighlandsPark and Proctor NeighborhoodPk and ProctorFrench Hill NeighborhoodFrench HillJericho Hill NeighborhoodJericho HillNewton Corner NeighborhoodNewton CornerMount Hood NeighborhoodMount HoodConcord Road West NeighborhoodConcord Rd WRobert's Ranches NeighborhoodRobert's RanchesNorth of Main NeighborhoodNorth of MainConcord-Carlisle School DistrictConcord-CarlisleNewton Highlands NeighborhoodNewton HighlandsCedar Park NeighborhoodCedar ParkOld Stage Estates NeighborhoodOld Stage EstsTown of ConcordConcordConcord School DistrictConcordZIP Code 01742ZIP 01742United States of AmericaUnited StatesMontrose NeighborhoodMontroseSouth Row Area NeighborhoodS Row AreaHighlands NeighborhoodHighlandsNortheastMassachusettsNew EnglandBoston, Cambridge, and Newton Metro AreaBoston AreaMiddlesex CountyMiddlesexBelvidere NeighborhoodBelvidereForestdale NeighborhoodForestdaleEdgeworth NeighborhoodEdgeworthPawtucketville NeighborhoodPawtucketvilleNorth Cambridge NeighborhoodN CambridgeLittlton Road Area NeighborhoodLittlton Rd AreaSouth Lowell NeighborhoodSouth LowellTeele Square NeighborhoodTeele SquareSpring Hill NeighborhoodSpring HillBrighton NeighborhoodBrightonRiverside NeighborhoodRiversideMid-Cambridge NeighborhoodMid-CambridgeBall Square NeighborhoodBall SquareDowntown NeighborhoodDowntownMIT NeighborhoodMIT34.206397%34.206397%34.2%805130.357325%30.357325%30.4%113114229.502814%29.502814%29.5%56328.873484%28.873484%28.9%41428.569531%28.569531%28.6%249527.821449%27.821449%27.8%740741626.922445%26.922445%26.9%4,1094,110726.792453%26.792453%26.8%435826.450116%26.450116%26.5%133926.385647%26.385647%26.4%1051026.288777%26.288777%26.3%1,5351126.211640%26.211640%26.2%2,9491225.912074%25.912074%25.9%4484491325.908212%25.908212%25.9%5981425.886408%25.886408%25.9%1,57724.970554%24.970554%25.0%1041051524.915531%24.915531%24.9%1,0631624.807827%24.807827%24.8%341724.784633%24.784633%24.8%2,3162,3171824.726148%24.726148%24.7%2,9362,9371924.712569%24.712569%24.7%2052024.679377%24.679377%24.7%1,0162124.248635%24.248635%24.2%5222224.228231%24.228231%24.2%1,4071,4082324.206861%24.206861%24.2%3293302424.123199%24.123199%24.1%3033042523.896282%23.896282%23.9%1921932623.831906%23.831906%23.8%8068072723.785479%23.785479%23.8%5,84123.573179%23.573179%23.6%2,0562,0572823.538334%23.538334%23.5%2782792923.474178%23.474178%23.5%2153023.332647%23.332647%23.3%4,53423.332647%23.332647%23.3%4,53423.313451%23.313451%23.3%4,53423.108006%23.108006%23.1%73,612,43873.6M22.434856%22.434856%22.4%1,0361,0373421.710604%21.710604%21.7%3104221.439478%21.439478%21.4%3,9253,9264521.341491%21.341491%21.3%11,965,27112.0M20.624778%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%322,430322k20.475279%20.475279%20.5%1,9881,9895119.505393%19.505393%19.5%1,8835918.287802%18.287802%18.3%1,2381,2396718.036222%18.036222%18.0%2,7137417.715056%17.715056%17.7%2,1202,1217615.755812%15.755812%15.8%3253268413.975611%13.975611%14.0%5129211.719540%11.719540%11.7%4841019.539747%9.539747%9.5%7511098.998981%8.998981%9.0%4,1371118.438365%8.438365%8.4%1,0711148.145298%8.145298%8.1%1,0571,0581157.796149%7.796149%7.8%3233241166.559445%6.559445%6.6%72731172.480611%2.480611%2.5%125118

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

Unlike the other geographical entities detailed on this site, neighborhoods are not recognized by the U.S. Census Bureau. To overcome this we have computed reasonable estimates of the same statistics that are presented for other the entity types. Each statistic is computed as the weighted sum or average of the census tracts or block groups that overlap the neighborhood. A weighted sum is used for counts of people or households, and a weighted average is used for statistics that are themselves some form of average, such as median household income. Census block groups are preferred when the statistic in question is available on the block group level. The weight for a given tract (or block group) is computed as the population of the census tabulation blocks that occupy the intersection between the tract and the neighborhood as a fraction of the total population of the neighborhood.

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

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