Demographics and Diversity
Population by Age

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Change in Total Population by Age, 2018-22

What does this measure?

The change in population of a geographic area broken down by selected age groups since 2008-12.

Why is this important?

Population measures provide insight on the changing size and face of communities, and an area's needs and assets. For example, areas with large or growing populations of seniors or children may face challenges in providing needed services and generating enough tax revenue to support those services.

How is our region doing?

The population of the three-county MetroWest region has been aging. The number of people between the ages of 60 and 84 increased 31% between 2008-12 and 2018-22. The population 85 and older grew 10% during the same period. By comparison, the population 40 to 59 decreased by 4%, the population 20 to 39 grew 13%, and the population under 20 decreased by 1%. Since 2008-12, people between 20 and 39 overtook those 40 to 59 as the largest single age group in the region (885,100 residents, compared to 856,600).

One of the most dramatic age shifts in a particular locality has been in Wayland, where those aged 20 to 39 increased 58% and those under 20 did not changed. Millis (83%), Groton (76%) and Hopkinton (73%) saw significant increases in people between 60 to 84. In addition, Walpole had growth of more than 19% in the under-20 category.

Notes about the data

The multi-year figures are from the Census Bureau's American Community Survey. The bureau combined multiple years of responses to the survey to provide estimates for smaller geographic areas and increase the precision of its estimates. The survey provides data on characteristics of the population that used to be collected only during the decennial census. Data for this indicator are expected to be released in the fourth quarter.

Change in Total Population by Age, 2018-22
Under 2020 to 3940 to 5960 to 8485 or Older
United States-1%8%-2%33%18%
Massachusetts-3%11%-5%32%11%
Region-1%13%-4%31%10%
Middlesex County0%13%-3%28%14%
Norfolk County-0%15%-5%28%15%
Worcester County-4%13%-5%42%-1%
Acton town, Middlesex County1%2%1%42%70%*
Ashland town, Middlesex County-15%41%-1%48%44%**
Bedford town, Middlesex County-1%20%2%10%27%*
Bellingham town, Norfolk County10%14%-14%12%69%***
Boxborough town, Middlesex County-5%*49%*-5%35%*-53%***
Carlisle town, Middlesex County23%*71%*-25%11%505%**
Concord town, Middlesex County5%13%-19%14%25%*
Dedham town, Norfolk County-13%13%-13%24%28%*
Dover town, Norfolk County-8%52%*-13%24%389%**
Framingham city, Middlesex County6%-2%-4%27%11%
Franklin town, Norfolk County-18%9%4%40%26%*
Groton town, Middlesex County1%34%-24%76%13%**
Harvard town, Worcester County5%25%-10%15%171%***
Holliston town, Middlesex County-9%38%-9%50%-24%***
Hopkinton town, Middlesex County8%27%23%73%36%**
Hudson town, Middlesex County-3%1%-0%24%15%**
Lexington town, Middlesex County8%-8%13%10%20%*
Lincoln town, Middlesex County3%-2%*2%25%50%*
Littleton town, Middlesex County0%41%-7%46%12%*
Marlborough city, Middlesex County9%18%-10%20%16%*
Maynard town, Middlesex County16%*-3%-9%34%-25%**
Medfield town, Norfolk County1%42%-17%65%-46%***
Medway town, Norfolk County-10%41%-15%33%-51%**
Milford town, Worcester County-2%3%-3%53%23%*
Millis town, Norfolk County-2%6%*-20%83%33%***
Natick town, Middlesex County-2%21%-3%39%52%*
Needham town, Norfolk County12%7%2%25%4%*
Sherborn town, Middlesex County1%57%*-6%21%-32%***
Southborough town, Worcester County-3%40%0%16%-26%**
Stow town, Middlesex County3%38%*-10%14%113%**
Sudbury town, Middlesex County-3%12%6%16%99%*
Walpole town, Norfolk County19%18%-1%3%14%*
Waltham city, Middlesex County-5%10%-4%31%3%*
Wayland town, Middlesex County0%58%-14%13%52%*
Wellesley town, Norfolk County5%5%-0%17%19%
Westborough town, Worcester County16%21%8%40%-29%*
Westford town, Middlesex County3%9%2%51%76%***
Weston town, Middlesex County-5%15%-6%16%35%**
Westwood town, Norfolk County3%45%-1%20%8%*

Source: U.S. Census Bureau
Notes: Rate is percentage change from 2000. Multiyear results are from rolling American Community Survey. * Margin of error between 20% & 35% of estimate; ** margin of error between 35% & 50%; *** margin of error greater than 50%.




Total Population by Age, 2018-22
Under 2020 to 3940 to 5960 to 8485 or Older
United States82,257,02289,636,15083,424,59769,269,7176,510,107
Massachusetts1,576,5091,931,4501,815,1701,500,537160,539
Region736,017885,088856,638656,00670,370
Middlesex County364,744474,967428,378320,37634,644
Norfolk County167,596186,327196,363153,47618,350
Worcester County203,677223,794231,897182,15417,376
Acton town, Middlesex County6,5803,9128,0714,655646*
Ashland town, Middlesex County3,8234,7185,8073,876410**
Bedford town, Middlesex County3,5922,8144,5672,760540*
Bellingham town, Norfolk County4,3664,6494,4313,199380***
Boxborough town, Middlesex County1,354*1,184*1,909993*22***
Carlisle town, Middlesex County1,466*748*1,4861,388121**
Concord town, Middlesex County4,8213,0615,0224,501860*
Dedham town, Norfolk County4,8896,4836,6656,0001,113*
Dover town, Norfolk County1,714907*1,8341,250181**
Framingham city, Middlesex County17,15520,12718,42114,2191,883
Franklin town, Norfolk County8,2887,38210,7865,767554*
Groton town, Middlesex County3,2692,0563,2922,489148**
Harvard town, Worcester County1,6521,2982,3401,423122***
Holliston town, Middlesex County3,6142,9724,4593,722135***
Hopkinton town, Middlesex County5,6463,1086,3523,447195**
Hudson town, Middlesex County4,4564,4845,7394,874394**
Lexington town, Middlesex County9,6523,70111,8157,9301,123*
Lincoln town, Middlesex County2,1721,177*1,8381,360381*
Littleton town, Middlesex County2,4602,2683,0342,132190*
Marlborough city, Middlesex County9,40412,46810,9017,850768*
Maynard town, Middlesex County2,669*2,4333,1622,269138**
Medfield town, Norfolk County3,8802,3904,0062,434134***
Medway town, Norfolk County3,3083,4523,6382,572194**
Milford town, Worcester County7,1468,0317,9906,471564*
Millis town, Norfolk County1,9631,641*2,2862,550125***
Natick town, Middlesex County8,3838,57410,6228,107903*
Needham town, Norfolk County9,6934,8469,4706,7041,244*
Sherborn town, Middlesex County1,322614*1,50290957***
Southborough town, Worcester County2,9391,9583,5411,797186**
Stow town, Middlesex County1,9551,474*2,0711,415196**
Sudbury town, Middlesex County5,7622,6226,4893,536517*
Walpole town, Norfolk County7,4315,4837,6974,983723*
Waltham city, Middlesex County12,28525,07313,89112,3481,114*
Wayland town, Middlesex County3,7102,4564,0193,293343*
Wellesley town, Norfolk County10,0725,5207,7695,716785
Westborough town, Worcester County5,7685,2376,1163,738501*
Westford town, Middlesex County7,2993,8818,3624,581401***
Weston town, Middlesex County3,4661,7693,3602,670494**
Westwood town, Norfolk County4,6682,8094,7023,245725*

Source: U.S. Census Bureau
Notes: Multiyear results are from rolling American Community Survey. * Margin of error between 20% & 35% of estimate; ** margin of error between 35% & 50%; *** margin of error greater than 50%.
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INDICATORS REGIONAL TREND
Early Prenatal Care by Mother's Race/Ethnicity Not Applicable
Children Living in Poverty Maintaining
Children Living in Poverty, by Race/Ethnicity Not Applicable
Single-Parent Families Increasing
Single-Parent Families by Race/Ethnicity Not Applicable
Disengaged Youth Decreasing
Reports of Domestic Violence Increasing
Arts, Entertainment and Recreation Establishments Increasing
Households Without Vehicles Maintaining
Means of Transportation to Work Not Applicable
Households With Internet Access Increasing
Voter Participation Rate Decreasing
Average Charitable Contribution Maintaining
People Without Health Insurance Decreasing
Opioid Overdose Mortality Rate Increasing
Crimes Against People Decreasing
Incarceration Rates, by Race/Ethnicity Not Applicable
Change in Total Population Increasing
Change in Population by Race/Ethnicity Not Applicable
Foreign-Born Population Increasing
Language Diversity Increasing
Population by Age Not Applicable
Change in Population by Age/Gender Not Applicable
Seniors Living Alone Decreasing
People with Disabilities Maintaining
Change in Total Jobs by Sector Not Applicable
Business Ownership by Race/Ethnicity Not Applicable
Unemployment Rate Maintaining
Share of Workers who are Professionals, by Race/Ethnicity Not Applicable
Unemployment Rate by Race/Ethnicity Not Applicable
Average Salary by Sector Not Applicable
High-Tech Jobs Decreasing
Female to Male Earnings Ratio Maintaining
Prekindergarten Participation Not Applicable
Student Performance on Grade 3 English, by Student Group Not Applicable
School Spending Per Student Maintaining
Student Performance on Grade 8 Math by Student Group Not Applicable
Chronically Absent Students Increasing
High School Cohort Graduation Rate by Student Group Not Applicable
Education Levels of Adults Not Applicable
College Admission Rate, by Race/Ethnicity Not Applicable
Education Levels of Adults, by Race/Ethnicity Not Applicable
People Living in Poverty Maintaining
People Living in Poverty, by Education Level Not Applicable
People Living in Poverty, by Race/Ethnicity Not Applicable
Households Receiving Temporary Assistance Maintaining
Participation in Food Assistance by Race/Ethnicity Not Applicable
Median Household Income Maintaining
Median Household Income, by Race/Ethnicity Not Applicable
Living Wage Not Applicable
80/20 Income Ratio Maintaining
Access to Financial Services, by Race/Ethnicity Not Applicable
Homeownership Rates Maintaining
Homeownership Rates, by Race/Ethnicity Not Applicable
Cost of Homeownership Increasing
Cost of Homeownership, by Race/Ethnicity Not Applicable
Cost of Rent Not Applicable
Cost of Rent, by Race/Ethnicity Not Applicable
Homelessness Increasing
Early Prenatal Care by Mother's Race/Ethnicity Not Applicable
Children Living in Poverty, by Race/Ethnicity Not Applicable
Single-Parent Families by Race/Ethnicity Not Applicable
Incarceration Rates, by Race/Ethnicity Not Applicable
Change in Population by Race/Ethnicity Not Applicable
Business Ownership by Race/Ethnicity Not Applicable
Share of Workers who are Professionals, by Race/Ethnicity Not Applicable
Unemployment Rate by Race/Ethnicity Not Applicable
Student Performance on Grade 3 English, by Student Group Not Applicable
Student Performance on Grade 8 Math by Student Group Not Applicable
High School Cohort Graduation Rate by Student Group Not Applicable
College Admission Rate, by Race/Ethnicity Not Applicable
Education Levels of Adults, by Race/Ethnicity Not Applicable
People Living in Poverty, by Race/Ethnicity Not Applicable
Participation in Food Assistance by Race/Ethnicity Not Applicable
Median Household Income, by Race/Ethnicity Not Applicable
Access to Financial Services, by Race/Ethnicity Not Applicable
Homeownership Rates, by Race/Ethnicity Not Applicable
Cost of Homeownership, by Race/Ethnicity Not Applicable
Cost of Rent, by Race/Ethnicity Not Applicable


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