Population 11,476 · Census ACS 2020–24
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Population and households in ZIP 03031
Household size in ZIP 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 2.87 | 2.52 | 2.68 |
| 2010–14 | 2.87 | 2.50 | 2.73 |
| 2015–19 | 2.75 | 2.49 | 2.71 |
| 2020–24 | 2.61 | 2.51 | 2.65 |
| Change | −0.26 | −0.01 | −0.03 |
At 2.61 people per household, ZIP 03031 sits close to the national average of 2.65. The typical household here is bigger than in New Hampshire as a whole, where it has 2.51 people. Household size has dropped from 2.87 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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 43.5 | 40.6 | 37.7 |
| 2010–14 | 43.4 | 42.1 | 38.6 |
| 2015–19 | 46.1 | 43.3 | 39.6 |
| 2020–24 | 46.8 | 44.2 | 40.1 |
| Change | +3.2 | +3.5 | +2.3 |
ZIP 03031 skews older: half of its residents are older than 46.8, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 43.5 in 2006–10, 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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 5.4% | 9.4% | 12.3% |
| 2010–14 | 7.0% | 9.5% | 12.3% |
| 2015–19 | 6.8% | 8.9% | 11.6% |
| 2020–24 | 3.1% | 8.5% | 11.6% |
| Change | −2.3 pts | −0.9 pts | −0.6 pts |
Single parents head only 3.1% of households in ZIP 03031, well below the national share of 11.6%. The single-parent share has fallen 2.3 points since 2006–10, a much bigger shift than nationally. Only four of the 79 New Hampshire ZIP codes with 5,000+ people have a lower share of single-parent households.
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 03031
Renters in ZIP 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 8.8% | 27.4% | 33.3% |
| 2010–14 | 8.9% | 29.0% | 35.6% |
| 2015–19 | 6.3% | 28.9% | 36.0% |
| 2020–24 | 8.0% | 27.2% | 34.8% |
| Change | −0.9 pts | −0.1 pts | +1.5 pts |
Only 8.0% of households in ZIP 03031 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. More than a third of owners (36.1%) have paid off their mortgages, below the national share of 39.8%. The renter share has edged down 0.9 points since 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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 8.9% | 12.6% | 11.4% |
| 2010–14 | 6.1% | 12.5% | 11.4% |
| 2015–19 | 5.1% | 12.7% | 11.1% |
| 2020–24 | 0.8% | 11.7% | 9.6% |
| Change | −8.2 pts | −0.9 pts | −1.8 pts |
Empty homes are scarce in ZIP 03031: just 0.8% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy is down 8.2 points from 2006–10, a much bigger shift than nationally. No other New Hampshire ZIP code with 5,000+ people has a lower vacancy rate.
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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 1977 | 1971 | 1974 |
| 2010–14 | 1978 | 1972 | 1975 |
| 2015–19 | 1977 | 1973 | 1977 |
| 2020–24 | 1978 | 1976 | 1980 |
| Change | +2 | +5 | +6 |
Homes in ZIP 03031 are about the same age as the nation's housing: the median home was built in 1978, versus 1980 nationally. The newest homes are mostly in the south, the oldest in the north.
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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | $1,257 | $1,018 | $965 |
| 2010–14 | $1,602 | $1,094 | $1,040 |
| 2015–19 | $1,257 | $1,224 | $1,213 |
| 2020–24 | $1,735 | $1,597 | $1,571 |
| Change | +$479 | +$580 | +$606 |
The median renter in ZIP 03031 pays $1,735 a month for rent and utilities, above the national median of $1,571. Rent has climbed $479 a month since 2006–10, up 38%, a slower climb than the nation's. The typical renter here spends 28.7% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the center; 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 03031
Bachelor's degrees in ZIP 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 61.3% | 33.5% | 28.4% |
| 2010–14 | 64.8% | 35.0% | 29.6% |
| 2015–19 | 62.6% | 37.6% | 32.1% |
| 2020–24 | 66.1% | 41.1% | 35.6% |
| Change | +4.8 pts | +7.6 pts | +7.2 pts |
ZIP 03031 is highly educated: about two-thirds of adults 25 and older (66.1%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has risen 4.8 points, as it has nationally. Of the 79 New Hampshire ZIP codes with 5,000+ people, only four have a higher share of college graduates.
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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 95.1% | 91.0% | 84.9% |
| 2010–14 | 97.6% | 92.0% | 86.1% |
| 2015–19 | 98.9% | 93.1% | 87.7% |
| 2020–24 | 99.6% | 94.5% | 89.3% |
| Change | +4.6 pts | +3.5 pts | +4.3 pts |
Finishing high school is nearly universal in ZIP 03031: 99.6% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has risen 4.6 points since 2006–10, as it has nationally. ZIP 03031 has the highest share of high school graduates of any New Hampshire ZIP code with 5,000+ people.
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 03031
| Period | ZIP 03031 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 5.4% | 5.9% | 8.1% |
| 2010–14 | 3.6% | 6.6% | 9.4% |
| 2015–19 | 4.5% | 3.6% | 5.6% |
| 2020–24 | 1.6% | 3.4% | 5.4% |
| Change | −3.8 pts | −2.5 pts | −2.7 pts |
The job market in ZIP 03031 has been strong: just 1.6% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 3.8 points from 2006–10, in line with the national trend. 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 03031 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 03031 | 2.61 | 46.8 | 3.1% | 8.0% | 0.8% | 1978 | $1,735 | 66.1% | 99.6% | 1.6% |
| ZIP 03055 | 2.55 | 39.3 | 10.8% | 34.3% | 4.7% | 1981 | $1,534 | 37.1% | 95.7% | 2.3% |
| ZIP 03054 | 2.64 | 42.2 | 6.6% | 10.9% | 4.0% | 1985 | $1,940 | 50.3% | 97.2% | 2.0% |
| ZIP 03057 | 3.05 | 42.7 | 7.3% | 4.3% | 7.6% | 1978 | $1,107 | 51.0% | 95.8% | 1.8% |
| ZIP 03110 | 2.92 | 46.3 | 7.6% | 17.1% | 3.4% | 1989 | $2,139 | 63.9% | 97.2% | 1.5% |
| ZIP 03063 | 2.39 | 40.2 | 10.9% | 37.2% | 3.9% | 1979 | $1,915 | 45.7% | 93.8% | 2.0% |
| ZIP 03049 | 2.60 | 47.9 | 5.4% | 8.5% | 2.2% | 1980 | $2,086 | 57.3% | 96.9% | 1.8% |
| ZIP 03052 | 2.83 | 43.0 | 5.8% | 13.2% | 2.4% | 1987 | $1,909 | 47.0% | 93.7% | 3.3% |
| ZIP 03086 | 2.35 | 46.2 | 4.3% | 22.6% | 9.4% | 1971 | $1,652 | 37.9% | 94.0% | 1.4% |
| ZIP 03033 | 3.14 | 41.2 | 8.4% | 4.9% | 3.4% | 1993 | $2,376 | 56.9% | 97.8% | 1.0% |
| ZIP 03064 | 2.36 | 45.9 | 9.5% | 42.8% | 8.9% | 1957 | $1,724 | 37.9% | 90.9% | 4.2% |
All figures 2020–24.
Zip codes with similar populations: 94965, CA · 54451, WI · 21788, MD · 22968, VA · 32333, FL · 32736, FL · 39581, MS · 39817, GA · 48809, MI · 48895, MI
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 03031. 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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