New Marlboro, MA Demographics

Population 99 · Census ACS 2020–24

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New Marlboro, MA map of median age by neighborhood
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Population and households in New Marlboro

Household size in New Marlboro

Household size, people per household
PeriodNew MarlboroMassachusettsU.S.
2006–102.322.532.68
2010–142.352.572.73
2015–192.382.572.71
2020–242.472.522.65
Change+0.15−0.01−0.03
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The average household in New Marlboro has 2.47 people, under the U.S. average of 2.65. That is in line with the rest of Massachusetts. Household size has climbed from 2.32 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in New Marlboro

Median age, years
PeriodNew MarlboroMassachusettsU.S.
2006–1048.639.437.7
2010–1452.140.138.6
2015–1952.141.039.6
2020–2454.841.440.1
Change+6.2+2.0+2.3
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With a median age of 54.8, New Marlboro is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in New Marlboro

Single-parent households, % of households
PeriodNew MarlboroMassachusettsU.S.
2006–105.5%11.0%12.3%
2010–147.9%11.0%12.3%
2015–1910.8%10.3%11.6%
2020–247.4%10.6%11.6%
Change+1.9 pts−0.4 pts−0.6 pts
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Single parents head only 7.4% of households in New Marlboro, well below the national share of 11.6%.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in New Marlboro

Renters in New Marlboro

Renters, % of occupied homes
PeriodNew MarlboroMassachusettsU.S.
2006–107.7%36.0%33.3%
2010–1413.7%37.7%35.6%
2015–195.3%37.6%36.0%
2020–246.0%37.5%34.8%
Change−1.7 pts+1.5 pts+1.5 pts
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New Marlboro is overwhelmingly a place of homeowners: only 6.0% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 44.4% have no mortgage at all, above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in New Marlboro

Vacant homes, % of all homes
PeriodNew MarlboroMassachusettsU.S.
2006–1047.3%9.5%11.4%
2010–1448.8%9.1%11.4%
2015–1945.9%8.9%11.1%
2020–2446.6%7.9%9.6%
Change−0.8 pts−1.6 pts−1.8 pts
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Vacancy is high in New Marlboro: 46.6% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in New Marlboro

Age of homes, median year built
PeriodNew MarlboroMassachusettsU.S.
2006–10196319581974
2010–14195919591975
2015–19196019611977
2020–24196319631980
Change+1+5+6
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New Marlboro is a place of older homes: half were built before 1963, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The picture is much the same across Massachusetts.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in New Marlboro

Rent, per month
PeriodNew MarlboroMassachusettsU.S.
2006–10$987$1,085$965
2010–14$1,124$1,157$1,040
2015–19$1,260$1,398$1,213
2020–24$2,226$1,860$1,571
Change+$1,239+$775+$606
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Rent in New Marlboro runs $2,226 a month at the median, utilities included, well above the U.S. median of $1,571. The typical renter here spends 36.9% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in New Marlboro

Bachelor's degrees in New Marlboro

Bachelor's degrees, % of adults 25+
PeriodNew MarlboroMassachusettsU.S.
2006–1032.7%38.5%28.4%
2010–1438.1%40.1%29.6%
2015–1943.2%43.6%32.1%
2020–2445.1%47.2%35.6%
Change+12.4 pts+8.7 pts+7.2 pts
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College degrees are more common in New Marlboro than nationally: 45.1% of adults 25 and older have a bachelor's or higher, against 35.6%. Massachusetts as a whole looks much the same.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in New Marlboro

High school graduates, % of adults 25+
PeriodNew MarlboroMassachusettsU.S.
2006–1090.6%88.4%84.9%
2010–1490.9%89.3%86.1%
2015–1993.2%90.5%87.7%
2020–2493.8%91.0%89.3%
Change+3.2 pts+2.6 pts+4.3 pts
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High school completion in New Marlboro is above the national rate: 93.8% of adults have a diploma or equivalent, against 89.3%.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in New Marlboro

Unemployment, % of the labor force
PeriodNew MarlboroMassachusettsU.S.
2006–103.3%7.5%8.1%
2010–146.0%8.7%9.4%
2015–195.7%5.0%5.6%
2020–241.2%5.2%5.4%
Change−2.2 pts−2.3 pts−2.7 pts
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The job market in New Marlboro has been strong: just 1.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

New Marlboro compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
New Marlboro2.4754.87.4%6.0%46.6%1963$2,22645.1%93.8%1.2%
Sandisfield2.6249.98.9%3.7%45.8%1978$1,25126.5%89.7%1.0%
South Sandisfield2.6050.78.9%4.0%46.1%1975$1,41729.3%90.2%0.8%
Southfield2.6253.12.3%4.5%37.7%1970$2,84543.8%97.5%3.8%
Hartsville2.3258.86.0%10.3%47.5%1955$2,69260.2%97.2%2.8%
Mill River2.6651.01.8%5.2%34.4%1976$2,61437.7%97.2%4.0%
Monterey2.3561.46.0%11.8%58.5%1974$1,72962.6%94.3%9.4%
Otis2.3650.42.0%8.6%50.4%1977$1,30138.9%95.8%6.3%
Roosterville2.3551.66.5%3.8%35.9%1976$1,13332.7%94.0%1.9%
Ashley Falls2.5045.33.3%2.4%4.1%1978$1,86640.8%95.8%11.7%
Tyringham2.3859.22.1%10.1%44.5%1980$1,16064.8%96.0%4.1%

All figures 2020–24.

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About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up New Marlboro. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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