02021, MA Demographics

Population 23,655 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
02021, MA map of median age by neighborhood
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Population and households in ZIP 02021

Household size in ZIP 02021

Household size, people per household
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–102.542.542.532.68
2010–142.482.592.572.73
2015–192.572.602.572.71
2020–242.572.552.522.65
Change+0.04+0.01−0.01−0.03
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At 2.57 people per household, ZIP 02021 sits close to the national average of 2.65. Since 2006–10, household size has crept up from 2.54, even as the national average fell. The biggest households, usually families with children, are concentrated in the center.

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 ZIP 02021

Median age, years
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–1041.438.939.437.7
2010–1442.939.740.138.6
2015–1943.440.441.039.6
2020–2443.140.841.440.1
Change+1.6+1.9+2.0+2.3
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The median resident of ZIP 02021 is 43.1 years old, older than the national median of 40.1. Since 2006–10, the median age has climbed from 41.4, in line with the national trend. The youngest areas are in the center, the oldest in the west.

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 ZIP 02021

Single-parent households, % of households
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–107.0%10.4%11.0%12.3%
2010–145.8%10.2%11.0%12.3%
2015–194.9%9.6%10.3%11.6%
2020–2410.4%9.7%10.6%11.6%
Change+3.4 pts−0.7 pts−0.4 pts−0.6 pts
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Single parents head about one in ten households in ZIP 02021 (10.4%), a little below the national share of 11.6%. The Boston area as a whole looks much the same. Since 2006–10, the single-parent share has risen 3.4 points, even as the national share fell.

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 ZIP 02021

Renters in ZIP 02021

Renters, % of occupied homes
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–1025.7%36.8%36.0%33.3%
2010–1423.5%38.5%37.7%35.6%
2015–1923.3%38.3%37.6%36.0%
2020–2425.1%38.4%37.5%34.8%
Change−0.6 pts+1.6 pts+1.5 pts+1.5 pts
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About a quarter of households in ZIP 02021 rent their homes (25.1%), below the national share of 34.8%; the rest own. Among homeowners, 31.5% have no mortgage at all, below the national share of 39.8%. Rentals cluster in the southeast; owners are most common in the north. The renter share is down 0.6 points from 2006–10, even as the national share rose.

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 ZIP 02021

Vacant homes, % of all homes
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–104.9%8.1%9.5%11.4%
2010–144.2%7.4%9.1%11.4%
2015–194.3%7.3%8.9%11.1%
2020–243.9%6.7%7.9%9.6%
Change−1.0 pts−1.4 pts−1.6 pts−1.8 pts
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Only 3.9% of homes in ZIP 02021 are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Since 2006–10, vacancy has edged down 1.0 points, as it has nationally. ZIP 02021 has a lower vacancy rate than at least four in five Massachusetts ZIP codes.

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 ZIP 02021

Age of homes, median year built
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–101972195819581974
2010–141972195919591975
2015–191970196119611977
2020–241978196419631980
Change+6+6+5+6
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The typical home in ZIP 02021 was built around 1978, about the same vintage as the country's housing overall (1980). Homes here are newer than in the Boston area as a whole, where the median home dates to 1964. The median year built has moved up from 1972 in 2006–10, a sign of steady new building. Newer construction is concentrated in the east, while the center has the oldest housing.

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 ZIP 02021

Rent, per month
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–10$1,317$1,171$1,085$965
2010–14$1,412$1,251$1,157$1,040
2015–19$1,733$1,537$1,398$1,213
2020–24$2,401$2,051$1,860$1,571
Change+$1,084+$881+$775+$606
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A typical rental in ZIP 02021 costs $2,401 a month with utilities, well above the national median of $1,571. Rent has climbed $1,084 a month since 2006–10, up 82%, faster than rents rose nationally. The typical renter here spends 32.9% of household income on rent, just over the 30% mark often used to define affordable rent. Rents run highest in the northeast and lowest in the southwest.

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 ZIP 02021

Bachelor's degrees in ZIP 02021

Bachelor's degrees, % of adults 25+
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–1048.6%42.2%38.5%28.4%
2010–1452.6%44.1%40.1%29.6%
2015–1955.3%48.2%43.6%32.1%
2020–2466.5%51.9%47.2%35.6%
Change+17.9 pts+9.7 pts+8.7 pts+7.2 pts
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College graduates are unusually common in ZIP 02021: 66.5% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. The share with a degree has risen 17.9 points since 2006–10, in line with the national trend.

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 ZIP 02021

High school graduates, % of adults 25+
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–1096.0%89.8%88.4%84.9%
2010–1497.1%90.6%89.3%86.1%
2015–1996.4%91.5%90.5%87.7%
2020–2496.1%91.8%91.0%89.3%
Change+0.1 pts+2.1 pts+2.6 pts+4.3 pts
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High school completion is high in ZIP 02021: 96.1% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Compared with other Massachusetts ZIP codes, ZIP 02021 has a higher share of high school graduates than most.

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 ZIP 02021

Unemployment, % of the labor force
PeriodZIP 02021Boston areaMassachusettsU.S.
2006–105.8%7.0%7.5%8.1%
2010–147.7%8.0%8.7%9.4%
2015–193.7%4.6%5.0%5.6%
2020–243.2%4.9%5.2%5.4%
Change−2.6 pts−2.1 pts−2.3 pts−2.7 pts
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The job market in ZIP 02021 has been strong: just 3.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has fallen 2.6 points since 2006–10, mirroring the country. 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).

ZIP 02021 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 020212.5743.110.4%25.1%3.9%1978$2,40166.5%96.1%3.2%
ZIP 020722.6145.611.5%25.9%4.5%1969$2,02942.5%90.6%4.3%
ZIP 020622.3741.89.2%46.0%4.2%1961$1,89555.2%93.4%3.7%
ZIP 023682.7742.014.2%29.5%3.3%1968$1,97437.3%88.1%7.5%
ZIP 020672.9742.35.8%12.4%4.4%1971$2,71378.1%98.8%2.8%
ZIP 020322.9038.14.8%20.3%12.7%1968$2,49368.7%98.4%4.7%
ZIP 020902.9443.85.3%12.7%4.8%1970$2,60072.7%95.6%1.8%
ZIP 023222.8837.717.3%24.2%0.7%1953$1,55629.0%85.7%2.5%
ZIP 020262.3645.58.3%26.6%4.2%1960$2,11655.7%93.7%3.6%
ZIP 021362.7837.820.3%47.5%4.6%1954$1,98936.6%88.9%5.9%
ZIP 020812.8241.75.4%15.4%5.3%1979$1,79467.3%98.1%5.3%

All figures 2020–24.

Zip codes with similar populations: 34974, FL · 98362, WA · 34736, FL · 34715, FL · 40047, KY · 85350, AZ · 38464, TN · 28334, NC · 40160, KY · 32097, FL

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 ZIP 02021. 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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