03857, NH Demographics

Population 9,457 · Census ACS 2020–24

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03857, NH map of median age by neighborhood
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Population and households in ZIP 03857

Household size in ZIP 03857

Household size, people per household
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–102.322.542.522.68
2010–142.352.592.502.73
2015–192.272.602.492.71
2020–242.202.552.512.65
Change−0.13+0.01−0.01−0.03
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Households in ZIP 03857 are small: just 2.20 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has dropped from 2.32 in 2006–10, a much bigger shift than nationally.

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 03857

Median age, years
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–1036.238.940.637.7
2010–1437.139.742.138.6
2015–1937.540.443.339.6
2020–2441.840.844.240.1
Change+5.5+1.9+3.5+2.3
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The median resident of ZIP 03857 is 41.8 years old, a bit older than the national median of 40.1. The median age has climbed from 36.2 in 2006–10, as it has nationally. Residents skew youngest in the north and oldest in the east.

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 03857

Single-parent households, % of households
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–109.0%10.4%9.4%12.3%
2010–1411.7%10.2%9.5%12.3%
2015–198.1%9.6%8.9%11.6%
2020–247.7%9.7%8.5%11.6%
Change−1.3 pts−0.7 pts−0.9 pts−0.6 pts
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Single parents head only 7.7% of households in ZIP 03857, well below the national share of 11.6%. The single-parent share is down 1.3 points from 2006–10, in line with the national trend.

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 03857

Renters in ZIP 03857

Renters, % of occupied homes
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–1042.8%36.8%27.4%33.3%
2010–1446.7%38.5%29.0%35.6%
2015–1947.4%38.3%28.9%36.0%
2020–2447.1%38.4%27.2%34.8%
Change+4.3 pts+1.6 pts−0.1 pts+1.5 pts
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Renting is far more common in ZIP 03857 than nationally: 47.1% of households rent their homes, against 34.8%. Among homeowners, 30.2% have no mortgage at all, below the national share of 39.8%. The renter share is up 4.3 points from 2006–10, in line with the national trend. Only six of the 79 New Hampshire ZIP codes with 5,000+ people have a higher share of renters.

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 03857

Vacant homes, % of all homes
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–106.4%8.1%12.6%11.4%
2010–147.4%7.4%12.5%11.4%
2015–193.9%7.3%12.7%11.1%
2020–244.3%6.7%11.7%9.6%
Change−2.1 pts−1.4 pts−0.9 pts−1.8 pts
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Empty homes are scarce in ZIP 03857: just 4.3% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy is down 2.1 points from 2006–10, as it has nationally.

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 03857

Age of homes, median year built
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–101979195819711974
2010–141977195919721975
2015–191979196119731977
2020–241982196419761980
Change+4+6+5+6
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The typical home in ZIP 03857 was built around 1982, about the same vintage as the country's housing overall (1980). Homes here are newer than in the wider Boston area, where the median home dates to 1964. The median year built has moved up from 1979 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southwest, while the northeast 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 03857

Rent, per month
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–10$1,073$1,171$1,018$965
2010–14$990$1,251$1,094$1,040
2015–19$1,191$1,537$1,224$1,213
2020–24$1,580$2,051$1,597$1,571
Change+$507+$881+$580+$606
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Rent in ZIP 03857 runs $1,580 a month at the median, utilities included, close to the U.S. median of $1,571. Rents here are lower than in the Boston area overall ($2,051). Rent has climbed $507 a month since 2006–10, up 47%, a slower climb than the nation's. Rent takes 28.7% of the typical renter's income, just under the 30% mark often used to define affordable rent.

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 03857

Bachelor's degrees in ZIP 03857

Bachelor's degrees, % of adults 25+
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–1041.6%42.2%33.5%28.4%
2010–1444.3%44.1%35.0%29.6%
2015–1947.7%48.2%37.6%32.1%
2020–2449.0%51.9%41.1%35.6%
Change+7.4 pts+9.7 pts+7.6 pts+7.2 pts
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College graduates are unusually common in ZIP 03857: 49.0% 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 7.4 points since 2006–10, as it has nationally.

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 03857

High school graduates, % of adults 25+
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–1096.3%89.8%91.0%84.9%
2010–1494.1%90.6%92.0%86.1%
2015–1995.5%91.5%93.1%87.7%
2020–2497.6%91.8%94.5%89.3%
Change+1.3 pts+2.1 pts+3.5 pts+4.3 pts
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Finishing high school is nearly universal in ZIP 03857: 97.6% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has edged up 1.3 points since 2006–10, a smaller shift than nationally. ZIP 03857 has a higher share of high school graduates than the great majority of New Hampshire ZIP codes.

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 03857

Unemployment, % of the labor force
PeriodZIP 03857Boston areaNew HampshireU.S.
2006–102.8%7.0%5.9%8.1%
2010–148.2%8.0%6.6%9.4%
2015–190.7%4.6%3.6%5.6%
2020–241.1%4.9%3.4%5.4%
Change−1.7 pts−2.1 pts−2.5 pts−2.7 pts
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Unemployment in ZIP 03857 has been low: just 1.1% of the labor force was out of work and looking, well below the national rate of 5.4%. Only six of the 79 New Hampshire ZIP codes with 5,000+ people have lower unemployment. Unemployment is down 1.7 points from 2006–10, as it has nationally.

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 03857 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 038572.2041.87.7%47.1%4.3%1982$1,58049.0%97.6%1.1%
ZIP 038563.0743.93.9%9.2%1.8%1991$1,81866.6%97.5%1.4%
ZIP 038242.8232.53.5%35.6%31.5%1987$1,84968.4%98.4%3.9%
ZIP 038852.6345.96.2%7.5%7.4%1989$2,52869.9%98.7%2.5%
ZIP 038612.7741.23.8%5.5%9.9%1986$1,34751.2%97.3%3.7%
ZIP 038402.5049.13.3%6.7%4.0%1987$2,43559.9%98.0%2.3%
ZIP 038332.4645.17.1%24.8%6.6%1981$1,90056.2%98.0%4.8%
ZIP 030422.3546.36.4%13.7%4.4%1994$1,76037.1%94.7%2.3%
ZIP 038232.9837.710.5%17.0%2.8%1984$1,57152.5%97.6%2.2%
ZIP 032902.6740.67.5%5.8%12.0%1989$1,56140.9%97.5%0.0%
ZIP 038012.1444.15.4%47.0%5.5%1959$1,97764.6%97.5%2.4%

All figures 2020–24.

Zip codes with similar populations: 66007, KS · 54944, WI · 03570, NH · 37871, TN · 15632, PA · 77612, TX · 73055, OK · 00653, PR · 23314, VA · 24293, VA

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 03857. 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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