03303, NH Demographics

Population 16,365 · Census ACS 2020–24

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03303, NH map of median age by neighborhood
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Population and households in ZIP 03303

Household size in ZIP 03303

Household size, people per household
PeriodZIP 03303New HampshireU.S.
2006–102.432.522.68
2010–142.522.502.73
2015–192.482.492.71
2020–242.422.512.65
Change−0.01−0.01−0.03
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Households in ZIP 03303 run small, averaging 2.42 people against 2.65 nationally, which usually means more singles and couples and fewer children. Households are largest in the north and smallest in the south.

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 03303

Median age, years
PeriodZIP 03303New HampshireU.S.
2006–1039.040.637.7
2010–1439.042.138.6
2015–1940.943.339.6
2020–2442.244.240.1
Change+3.2+3.5+2.3
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ZIP 03303 skews a little older than the country: its median age is 42.2, against 40.1 nationally. Still, the population here is younger than in New Hampshire overall, where the median age is 44.2. Since 2006–10, the median age has climbed from 39.0, as it has nationally.

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 03303

Single-parent households, % of households
PeriodZIP 03303New HampshireU.S.
2006–1012.3%9.4%12.3%
2010–1413.2%9.5%12.3%
2015–199.6%8.9%11.6%
2020–2412.7%8.5%11.6%
Change+0.4 pts−0.9 pts−0.6 pts
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Single-parent households are a bit more common in ZIP 03303 than nationally: 12.7%, against 11.6%. ZIP 03303 has a higher share of single-parent households than the great majority of New Hampshire ZIP codes.

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 03303

Renters in ZIP 03303

Renters, % of occupied homes
PeriodZIP 03303New HampshireU.S.
2006–1029.5%27.4%33.3%
2010–1429.6%29.0%35.6%
2015–1932.3%28.9%36.0%
2020–2432.3%27.2%34.8%
Change+2.8 pts−0.1 pts+1.5 pts
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Renting in ZIP 03303 is about as common as it is nationally: 32.3% of households rent, against 34.8%. Renters make up a bigger share here than in New Hampshire as a whole (27.2%). Among homeowners, 28.5% have no mortgage at all, well below the national share of 39.8%. Since 2006–10, the renter share has risen 2.8 points, as it has nationally.

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 03303

Vacant homes, % of all homes
PeriodZIP 03303New HampshireU.S.
2006–109.0%12.6%11.4%
2010–145.7%12.5%11.4%
2015–198.7%12.7%11.1%
2020–244.3%11.7%9.6%
Change−4.7 pts−0.9 pts−1.8 pts
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Only 4.3% of homes in ZIP 03303 are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 4.7 points from 2006–10, in line with the national trend.

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 03303

Age of homes, median year built
PeriodZIP 03303New HampshireU.S.
2006–10197619711974
2010–14197719721975
2015–19197919731977
2020–24197919761980
Change+2+5+6
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Homes in ZIP 03303 are about the same age as the nation's housing: the median home was built in 1979, versus 1980 nationally. The newest homes are mostly in the south, the oldest in the east.

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 03303

Rent, per month
PeriodZIP 03303New HampshireU.S.
2006–10$888$1,018$965
2010–14$951$1,094$1,040
2015–19$1,066$1,224$1,213
2020–24$1,421$1,597$1,571
Change+$533+$580+$606
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The median renter in ZIP 03303 pays $1,421 a month for rent and utilities, below the national median of $1,571. Rent has climbed $533 a month since 2006–10, up 60%, roughly in step with the nation. The typical renter here spends 30.4% of household income on rent, just over the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the north; the highest are in the southeast.

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 03303

Bachelor's degrees in ZIP 03303

Bachelor's degrees, % of adults 25+
PeriodZIP 03303New HampshireU.S.
2006–1025.1%33.5%28.4%
2010–1426.3%35.0%29.6%
2015–1930.7%37.6%32.1%
2020–2430.7%41.1%35.6%
Change+5.7 pts+7.6 pts+7.2 pts
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College degrees are a little less common in ZIP 03303 than nationally: 30.7% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree is up 5.7 points from 2006–10, as it has nationally. College graduates are most concentrated in the southeast and least in the north.

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 03303

High school graduates, % of adults 25+
PeriodZIP 03303New HampshireU.S.
2006–1091.6%91.0%84.9%
2010–1491.3%92.0%86.1%
2015–1991.8%93.1%87.7%
2020–2494.1%94.5%89.3%
Change+2.5 pts+3.5 pts+4.3 pts
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High school completion in ZIP 03303 is above the national rate: 94.1% of adults have a diploma, against 89.3%. That is in line with the rest of New Hampshire. Since 2006–10, the share with a diploma has risen 2.5 points, as it has nationally.

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 03303

Unemployment, % of the labor force
PeriodZIP 03303New HampshireU.S.
2006–104.4%5.9%8.1%
2010–145.8%6.6%9.4%
2015–192.5%3.6%5.6%
2020–243.2%3.4%5.4%
Change−1.2 pts−2.5 pts−2.7 pts
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The job market in ZIP 03303 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 edged down 1.2 points since 2006–10, as it has nationally. 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 03303 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 033032.4242.212.7%32.3%4.3%1979$1,42130.7%94.1%3.2%
ZIP 032242.4748.64.0%6.3%6.2%1982$2,13649.6%95.3%3.1%
ZIP 033012.2741.79.1%44.0%6.3%1959$1,65443.7%93.1%4.3%
ZIP 032292.9042.47.5%13.4%13.0%1968$1,28958.3%96.5%1.2%
ZIP 033072.6649.32.7%10.4%5.7%1985$1,30332.6%94.2%2.0%
ZIP 032682.5251.56.7%3.1%12.7%1982$1,91737.3%96.0%5.6%
ZIP 032782.4044.19.9%23.9%15.6%1976$1,30941.8%94.7%1.5%
ZIP 033042.9543.45.3%12.5%2.6%1985$1,53760.3%98.7%3.9%
ZIP 032582.6044.312.2%15.0%5.6%1987$2,03037.3%96.0%2.2%
ZIP 030462.6047.80.2%4.9%4.7%1989$1,35739.5%93.2%4.7%
ZIP 032422.5836.79.0%35.5%7.3%1974$1,11738.8%99.6%1.5%

All figures 2020–24.

Zip codes with similar populations: 80603, CO · 19956, DE · 30354, GA · 31513, GA · 36854, AL · 00677, PR · 61520, IL · 79029, TX · 80465, CO · 44321, OH

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 03303. 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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