Population 5,600 · Census ACS 2020–24
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Population and households in ZIP 03870
Household size in ZIP 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.30 | 2.54 | 2.52 | 2.68 |
| 2010–14 | 2.35 | 2.59 | 2.50 | 2.73 |
| 2015–19 | 2.32 | 2.60 | 2.49 | 2.71 |
| 2020–24 | 2.41 | 2.55 | 2.51 | 2.65 |
| Change | +0.12 | +0.01 | −0.01 | −0.03 |
Households in ZIP 03870 run small, averaging 2.41 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has climbed from 2.30, even as the national average fell. The biggest households, usually families with children, are concentrated in the west.
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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 48.6 | 38.9 | 40.6 | 37.7 |
| 2010–14 | 49.7 | 39.7 | 42.1 | 38.6 |
| 2015–19 | 54.3 | 40.4 | 43.3 | 39.6 |
| 2020–24 | 54.2 | 40.8 | 44.2 | 40.1 |
| Change | +5.6 | +1.9 | +3.5 | +2.3 |
ZIP 03870 skews older: half of its residents are older than 54.2, 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 48.6 in 2006–10, as it has nationally. Of the 79 New Hampshire ZIP codes with 5,000+ people, only six are older.
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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.7% | 10.4% | 9.4% | 12.3% |
| 2010–14 | 3.9% | 10.2% | 9.5% | 12.3% |
| 2015–19 | 5.4% | 9.6% | 8.9% | 11.6% |
| 2020–24 | 3.5% | 9.7% | 8.5% | 11.6% |
| Change | −2.2 pts | −0.7 pts | −0.9 pts | −0.6 pts |
Single parents head only 3.5% of households in ZIP 03870, well below the national share of 11.6%. Since 2006–10, the single-parent share has fallen 2.2 points, a much bigger shift than nationally. Only five 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 03870
Renters in ZIP 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.4% | 36.8% | 27.4% | 33.3% |
| 2010–14 | 15.3% | 38.5% | 29.0% | 35.6% |
| 2015–19 | 17.8% | 38.3% | 28.9% | 36.0% |
| 2020–24 | 14.4% | 38.4% | 27.2% | 34.8% |
| Change | −2.9 pts | +1.6 pts | −0.1 pts | +1.5 pts |
ZIP 03870 is overwhelmingly a place of homeowners: only 14.4% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 43.5% have no mortgage at all, above the national share of 39.8%. Since 2006–10, the renter share has fallen 2.9 points, 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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 18.5% | 8.1% | 12.6% | 11.4% |
| 2010–14 | 19.8% | 7.4% | 12.5% | 11.4% |
| 2015–19 | 24.1% | 7.3% | 12.7% | 11.1% |
| 2020–24 | 19.8% | 6.7% | 11.7% | 9.6% |
| Change | +1.3 pts | −1.4 pts | −0.9 pts | −1.8 pts |
Vacancy is high in ZIP 03870: 19.8% 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. Vacancy has edged up 1.3 points since 2006–10, even as the national rate fell.
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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 1966 | 1958 | 1971 | 1974 |
| 2010–14 | 1972 | 1959 | 1972 | 1975 |
| 2015–19 | 1969 | 1961 | 1973 | 1977 |
| 2020–24 | 1975 | 1964 | 1976 | 1980 |
| Change | +9 | +6 | +5 | +6 |
Homes in ZIP 03870 run a bit older than the national norm, with a median build year of 1975 against 1980. Locally, though, 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 1966 in 2006–10, a sign of steady new building. The newest homes are mostly in the west, the oldest in the northeast.
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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,534 | $1,171 | $1,018 | $965 |
| 2010–14 | $1,719 | $1,251 | $1,094 | $1,040 |
| 2015–19 | $1,531 | $1,537 | $1,224 | $1,213 |
| 2020–24 | $1,801 | $2,051 | $1,597 | $1,571 |
| Change | +$267 | +$881 | +$580 | +$606 |
A typical rental in ZIP 03870 costs $1,801 a month with utilities, above the national median of $1,571. Locally, though, rents here are lower than in the Boston area as a whole ($2,051). Rents are up $267 a month from 2006–10, a 17% rise, a slower climb than the nation's. Rent takes 29.0% 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 03870
Bachelor's degrees in ZIP 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 57.2% | 42.2% | 33.5% | 28.4% |
| 2010–14 | 49.0% | 44.1% | 35.0% | 29.6% |
| 2015–19 | 61.0% | 48.2% | 37.6% | 32.1% |
| 2020–24 | 61.4% | 51.9% | 41.1% | 35.6% |
| Change | +4.3 pts | +9.7 pts | +7.6 pts | +7.2 pts |
College graduates are unusually common in ZIP 03870: 61.4% 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 is up 4.3 points from 2006–10, mirroring the country.
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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 97.9% | 89.8% | 91.0% | 84.9% |
| 2010–14 | 96.1% | 90.6% | 92.0% | 86.1% |
| 2015–19 | 98.0% | 91.5% | 93.1% | 87.7% |
| 2020–24 | 97.4% | 91.8% | 94.5% | 89.3% |
| Change | −0.4 pts | +2.1 pts | +3.5 pts | +4.3 pts |
Finishing high school is nearly universal in ZIP 03870: 97.4% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. ZIP 03870 has a higher share of high school graduates than at least four in five 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 03870
| Period | ZIP 03870 | Boston area | New Hampshire | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.0% | 7.0% | 5.9% | 8.1% |
| 2010–14 | 3.0% | 8.0% | 6.6% | 9.4% |
| 2015–19 | 1.1% | 4.6% | 3.6% | 5.6% |
| 2020–24 | 4.3% | 4.9% | 3.4% | 5.4% |
| Change | +0.3 pts | −2.1 pts | −2.5 pts | −2.7 pts |
Unemployment in ZIP 03870 runs below the national rate: 4.3% of the labor force was out of work and looking, against 5.4% nationally. That is in line with the rest of the Boston area. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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 03870 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 03870 | 2.41 | 54.2 | 3.5% | 14.4% | 19.8% | 1975 | $1,801 | 61.4% | 97.4% | 4.3% |
| ZIP 03871 | 2.21 | 56.7 | 2.2% | 16.6% | 44.0% | 1973 | $1,681 | 80.5% | 100.0% | 2.9% |
| ZIP 03801 | 2.14 | 44.1 | 5.4% | 47.0% | 5.5% | 1959 | $1,977 | 64.6% | 97.5% | 2.4% |
| ZIP 03862 | 2.27 | 51.2 | 3.3% | 8.7% | 9.0% | 1984 | $1,893 | 53.8% | 95.7% | 1.4% |
| ZIP 03854 | 2.06 | 62.8 | 0.7% | 7.0% | 13.9% | 1975 | $3,501 | 68.8% | 95.0% | 0.0% |
| ZIP 03840 | 2.50 | 49.1 | 3.3% | 6.7% | 4.0% | 1987 | $2,435 | 59.9% | 98.0% | 2.3% |
| ZIP 03842 | 2.10 | 55.5 | 5.5% | 26.0% | 16.1% | 1978 | $1,724 | 43.6% | 95.2% | 5.6% |
| ZIP 03904 | 2.11 | 43.7 | 5.6% | 35.6% | 8.6% | 1962 | $1,835 | 43.7% | 95.4% | 5.1% |
| ZIP 03905 | 2.08 | 58.0 | 3.9% | 20.3% | 13.1% | 1962 | $2,190 | 59.4% | 98.9% | 5.9% |
| ZIP 03885 | 2.63 | 45.9 | 6.2% | 7.5% | 7.4% | 1989 | $2,528 | 69.9% | 98.7% | 2.5% |
| ZIP 03844 | 2.67 | 49.5 | 2.4% | 14.0% | 6.5% | 1981 | $1,849 | 54.3% | 98.4% | 2.8% |
All figures 2020–24.
Zip codes with similar populations: 08853, NJ · 97444, OR · 48133, MI · 86025, AZ · 44272, OH · 31569, GA · 55319, MN · 50659, IA · 02568, MA · 35442, AL
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 03870. 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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