Town · Massachusetts
Marion, Massachusetts
Marion, town, in Plymouth County, Massachusetts. Marion had 5,366 residents on July 1, 2025 by the Census Bureau's estimate, up 0.4% since 2020; the 2020 Census counted 5,347 and the ACS 2020-2024 5-year estimates put it at 5,310 (±33). GEOID 2502338540.
Residents, July 2025 estimate
5,366
Census Bureau estimate (no margin published)
2020 Census count: 5,347 · ACS 2020-2024: 5,310 ±33
Median household income
$143,092
±$30,325 (90% margin)
Massachusetts: $103,960
Median home value
$653,500
±$46,909 (90% margin)
Massachusetts: $562,100
Median gross rent
$1,176
±$516 (90% margin)
Massachusetts: $1,762
Where is Marion and what county is it in?
Marion is a town in Plymouth County, Massachusetts. It covers 14.1 square miles of land, 378 residents per square mile in 2020.
One place lies inside Marion: Marion Center (CDP, 1,172 in 2020).
Marion is in the Boston-Cambridge-Newton, MA-NH metropolitan statistical area, which takes in 7 counties (Census Bureau delineation, July 2023).
Marion is the same area as Census Tract 5611 of Plymouth County: the tract's figures are Marion's own.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Marion, and is it growing?
The Census Bureau estimates that 5,366 people lived in Marion on July 1, 2025, up 0.4% since 2020, slower than Massachusetts (+1.7%). The 2020 Census counted 5,347 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 5,310 (±33).
| Measure | Marion | Plymouth County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 5,310±33 | 535,075 | +178 |
| Households | 2,105±207 | 203,141 | no clear change |
| Average household size | 2.39±0.23 | 2.58 | no clear change |
| Housing units | 2,631±266 | 218,096 | no clear change |
Marion's population since 2000
From 5,123 in 2000 to 5,366 in 2025: up 4.7%. The 2000, 2010 and 2020 figures are census counts, each for Marion as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Marion?
The median resident of Marion is 53.8 years old; 16.7% are under 18 and 27.3% are 65 or older. The largest group is non-Hispanic white residents at 81.0%, then non-Hispanic residents of two or more races at 10.2%.
| Measure | Marion | Plymouth County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 53.8±4.0 | 43.0 | no clear change |
| Under 18 years | 16.7%±3.8 pts | 20.7% | – |
| 65 years and over | 27.3%±5.5 pts | 19.8% | – |
| Male | 47.6%±5.8 pts | 48.9% | – |
| Hispanic or Latino (any race) | 0.5%±1.0 pts | 4.9% | – |
| White alone, not Hispanic | 81.0%±7.8 pts | 76.1% | no clear change |
| Black or African American alone, not Hispanic | 4.6%±4.8 pts | 7.8% | – |
| Asian alone, not Hispanic | 0.4%±0.5 pts | 1.7% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.8 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 10.2%±5.4 pts | 6.8% | – |
| Some other race alone, not Hispanic | 3.3%±2.8 pts | 2.7% | – |
| Born outside the United States | 3.9%±3.4 pts | 11.2% | – |
| Speak a language other than English at home (age 5+) | 3.6%±3.6 pts | 14.7% | – |
| Civilian veterans (age 18+) | 6.0%±3.0 pts | 5.7% | – |
| With a disability | 9.2%±3.7 pts | 11.8% | – |
| No health insurance coverage | 2.3%±1.9 pts | 2.5% | – |
| High school graduate or higher (age 25+) | 96.9%±2.0 pts | 93.1% | – |
| Bachelor's degree or higher (age 25+) | 46.7%±8.1 pts | 41.8% | no clear change |
| Graduate or professional degree (age 25+) | 24.6%±7.5 pts | 16.1% | – |
| Lived in the same house a year earlier | 94.0%±4.8 pts | 91.3% | – |
| Moved from another state in the past year | 0.4%±0.7 pts | 0.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Marion earn?
Half of Marion's 2,105 households earn less than $143,092 a year (±$30,325), against $114,201 in Plymouth County and $103,960 in Massachusetts. In 2015-2019 the median was $100,828 in 2024 dollars, so it rose by $42,264 after inflation. 9.0% of residents live below the poverty line.
| Measure | Marion | Plymouth County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $143,092±$30,325 | $114,201 | +$42,264 |
| Mean household income | $237,564±$63,974 | $151,136 | – |
| Per capita income | $96,841±$26,701 | $57,650 | +$31,485 |
| People below the poverty line | 9.0%±5.4 pts | 7.1% | – |
| Children under 18 below the poverty line | 11.7%±15.7 pts | 7.5% | – |
| Households receiving SNAP | 5.9%±4.8 pts | 12.7% | – |
| Households with a computer | 98.1%±2.2 pts | 95.9% | – |
| Households with a broadband subscription | 95.0%±4.2 pts | 92.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Marion?
Owners occupy 90.8% of Marion's occupied homes and renters 9.2%. The median owner-occupied home is valued at $653,500 by its owner (±$46,909). The median renter pays $1,176 a month including utilities, and 55.2% of renters pay 35% or more of their income on rent.
| Measure | Marion | Plymouth County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $653,500±$46,909 | $556,000 | no clear change |
| Median gross rent | $1,176±$516 | $1,747 | no clear change |
| Renters paying 35% or more of income on rent | 55.2%±31.6 pts | 45.4% | no clear change |
| Median monthly owner costs, with a mortgage | $2,835±$450 | $2,799 | – |
| Owner-occupied homes | 90.8%±5.1 pts | 77.6% | +10.5 pts |
| Renter-occupied homes | 9.2%±5.1 pts | 22.4% | – |
| Housing units | 2,631±266 | 218,096 | no clear change |
| Homeowner vacancy rate | 0.0%±2.1 pts | 0.4% | – |
| Rental vacancy rate | 11.0%±18.0 pts | 2.0% | – |
| Single-family detached homes | 95.7%±3.2 pts | 69.6% | – |
| Mobile homes | 0.0%±1.6 pts | 2.3% | – |
| Built 2020 or later | 0.6%±1.0 pts | 1.6% | – |
| Built 2010 to 2019 | 8.2%±4.4 pts | 7.2% | – |
| Built 1939 or earlier | 33.9%±8.9 pts | 21.2% | – |
| Households with no vehicle | 4.3%±4.1 pts | 6.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Marion building?
Builders took permits for 12 new housing units in Marion in 2025 (12 in single-family houses), 2.2 per 1,000 residents against 1.7 across Massachusetts.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Marion work and get to work?
68.7% of Marion's workers drive alone and 20.1% work from home. The average trip to work takes 33.5 minutes. The unemployment rate in 2020-2024 averaged 5.7%.
| Measure | Marion | Plymouth County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 57.9%±7.8 pts | 66.7% | – |
| Unemployment rate | 5.7%±3.7 pts | 5.1% | – |
| Drove alone to work | 68.7%±10.2 pts | 70.5% | – |
| Carpooled | 5.0%±5.4 pts | 7.0% | – |
| Public transportation | 1.3%±1.9 pts | 2.9% | – |
| Walked | 5.0%±6.8 pts | 1.5% | – |
| Worked from home | 20.1%±9.0 pts | 16.2% | no clear change |
| Mean travel time to work | 33.5 min±8.1 | 32.5 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Marion?
1 census tract lies mostly in Marion (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 5611Plymouth County | 5,310 | $143,092 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Marion) · Census block assignment files
How does Marion compare with other places in Massachusetts?
By the Census Bureau's July 2025 estimates, Marion is the 2,175th-most populous of the 16,079 U.S. towns and townships that have one and the 162nd-most populous of 266 in Massachusetts.
Marion ranks 101st of 453 places in Massachusetts with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 162nd | 266 |
| Growth 2020-2025 (PEP) | 210th | 292 |
| Residents per square mile | 341st | 461 |
| Median household income | 101st | 453 |
| Per capita income | 30th | 460 |
| Median home value | 136th | 459 |
| Median gross rent | 325th | 410 |
| Poverty rate | 97th | 338 |
| Bachelor's degree or higher | 225th | 459 |
| Median age | 73rd | 461 |
| Owner-occupied share | 59th | 460 |
| Work from home | 172nd | 429 |
| Travel time to work | 107th | 459 |
Marion's figures with every place in Massachusetts (CSV)
Every place in Massachusetts, sortable · Compare Marion with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Marion?
20 of the 57 figures for Marion on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Marion are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.