Population 37,854 · Census ACS 2020–24
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Population and households in ZIP 03103
Household size in ZIP 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 2.52 | 2.52 | 2.68 |
| 2010–14 | 2.62 | 2.50 | 2.73 |
| 2015–19 | 2.57 | 2.49 | 2.71 |
| 2020–24 | 2.50 | 2.51 | 2.65 |
| Change | −0.02 | −0.01 | −0.03 |
The average household in ZIP 03103 has 2.50 people, a bit under the U.S. average of 2.65. That is in line with the rest of New Hampshire.
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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 35.3 | 40.6 | 37.7 |
| 2010–14 | 36.4 | 42.1 | 38.6 |
| 2015–19 | 36.6 | 43.3 | 39.6 |
| 2020–24 | 39.8 | 44.2 | 40.1 |
| Change | +4.5 | +3.5 | +2.3 |
At 39.8, the median age in ZIP 03103 is close to the national median of 40.1, so its age mix looks much like the country's. The population here is younger than in New Hampshire overall, where the median age is 44.2. The median age has climbed from 35.3 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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 16.6% | 9.4% | 12.3% |
| 2010–14 | 16.1% | 9.5% | 12.3% |
| 2015–19 | 14.5% | 8.9% | 11.6% |
| 2020–24 | 15.9% | 8.5% | 11.6% |
| Change | −0.7 pts | −0.9 pts | −0.6 pts |
Single-parent households are common in ZIP 03103: 15.9% of all households, against 11.6% nationally. The single-parent share is down 0.7 points from 2006–10, mirroring the country. Of the 79 New Hampshire ZIP codes with 5,000+ people, only three have a higher 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 03103
Renters in ZIP 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 46.4% | 27.4% | 33.3% |
| 2010–14 | 49.4% | 29.0% | 35.6% |
| 2015–19 | 56.3% | 28.9% | 36.0% |
| 2020–24 | 51.7% | 27.2% | 34.8% |
| Change | +5.3 pts | −0.1 pts | +1.5 pts |
Renters far outnumber owners in ZIP 03103: 51.7% of households rent their homes, against 34.8% nationally. Nearly four in ten owners (38.3%) have paid off their mortgages, about the same as nationally. Since 2006–10, the renter share has risen 5.3 points, a much bigger shift than nationally. Only two 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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 10.7% | 12.6% | 11.4% |
| 2010–14 | 10.8% | 12.5% | 11.4% |
| 2015–19 | 8.1% | 12.7% | 11.1% |
| 2020–24 | 6.8% | 11.7% | 9.6% |
| Change | −3.9 pts | −0.9 pts | −1.8 pts |
Fewer homes sit empty in ZIP 03103 than nationally: 6.8%, against 9.6% for the U.S. Vacancy is down 3.9 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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 1952 | 1971 | 1974 |
| 2010–14 | 1951 | 1972 | 1975 |
| 2015–19 | 1955 | 1973 | 1977 |
| 2020–24 | 1959 | 1976 | 1980 |
| Change | +8 | +5 | +6 |
ZIP 03103 is a place of older homes: half were built before 1959, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the south, while the northeast has the oldest housing. Only six of the 79 New Hampshire ZIP codes with 5,000+ people have older homes.
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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | $944 | $1,018 | $965 |
| 2010–14 | $971 | $1,094 | $1,040 |
| 2015–19 | $1,166 | $1,224 | $1,213 |
| 2020–24 | $1,624 | $1,597 | $1,571 |
| Change | +$680 | +$580 | +$606 |
Rent in ZIP 03103 runs $1,624 a month at the median, utilities included, close to the U.S. median of $1,571. Rent has climbed $680 a month since 2006–10, up 72%, faster than rents rose nationally. The typical renter here spends 29.6% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. The priciest rents are in the south; the most affordable are in the north.
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 03103
Bachelor's degrees in ZIP 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 18.6% | 33.5% | 28.4% |
| 2010–14 | 18.7% | 35.0% | 29.6% |
| 2015–19 | 20.9% | 37.6% | 32.1% |
| 2020–24 | 23.0% | 41.1% | 35.6% |
| Change | +4.4 pts | +7.6 pts | +7.2 pts |
Fewer adults in ZIP 03103 have a four-year degree than in the country as a whole: 23.0%, against 35.6% nationally. The share with a degree is up 4.4 points from 2006–10, as it has nationally. Of the 79 New Hampshire ZIP codes with 5,000+ people, only six have a lower 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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 82.0% | 91.0% | 84.9% |
| 2010–14 | 81.3% | 92.0% | 86.1% |
| 2015–19 | 81.0% | 93.1% | 87.7% |
| 2020–24 | 84.1% | 94.5% | 89.3% |
| Change | +2.1 pts | +3.5 pts | +4.3 pts |
Nearly one in six adults in ZIP 03103 never finished high school, well above the national share: only 84.1% have a diploma or equivalent, against 89.3% nationally. Since 2006–10, the share with a diploma has risen 2.1 points, in line with the national trend. ZIP 03103 has the lowest 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 03103
| Period | ZIP 03103 | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 8.3% | 5.9% | 8.1% |
| 2010–14 | 9.4% | 6.6% | 9.4% |
| 2015–19 | 6.0% | 3.6% | 5.6% |
| 2020–24 | 2.7% | 3.4% | 5.4% |
| Change | −5.6 pts | −2.5 pts | −2.7 pts |
Unemployment in ZIP 03103 has been low: just 2.7% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 5.6 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 03103 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 03103 | 2.50 | 39.8 | 15.9% | 51.7% | 6.8% | 1959 | $1,624 | 23.0% | 84.1% | 2.7% |
| ZIP 03101 | 2.08 | 29.4 | 11.5% | 91.1% | 15.8% | 1960 | $1,640 | 45.0% | 91.2% | 2.9% |
| ZIP 03109 | 2.41 | 43.0 | 8.7% | 24.2% | 8.3% | 1981 | $1,748 | 32.4% | 95.6% | 4.5% |
| ZIP 03104 | 2.31 | 39.2 | 11.2% | 44.0% | 8.2% | 1961 | $1,666 | 43.7% | 93.4% | 3.2% |
| ZIP 03102 | 2.19 | 38.4 | 13.2% | 58.6% | 5.2% | 1966 | $1,571 | 35.2% | 90.1% | 2.1% |
| ZIP 03110 | 2.92 | 46.3 | 7.6% | 17.1% | 3.4% | 1989 | $2,139 | 63.9% | 97.2% | 1.5% |
| ZIP 03032 | 3.06 | 44.6 | 9.4% | 6.1% | 7.4% | 1984 | $1,829 | 55.4% | 94.1% | 1.4% |
| ZIP 03106 | 2.58 | 40.6 | 6.0% | 21.4% | 5.3% | 1987 | $1,661 | 39.9% | 95.6% | 2.3% |
| ZIP 03045 | 2.57 | 43.0 | 6.8% | 11.8% | 5.0% | 1982 | $1,480 | 45.1% | 97.3% | 0.7% |
| ZIP 03053 | 2.73 | 42.3 | 9.5% | 14.3% | 4.6% | 1989 | $1,906 | 48.2% | 97.2% | 4.8% |
| ZIP 03054 | 2.64 | 42.2 | 6.6% | 10.9% | 4.0% | 1985 | $1,940 | 50.3% | 97.2% | 2.0% |
All figures 2020–24.
Zip codes with similar populations: 83815, ID · 85132, AZ · 22201, VA · 24153, VA · 44134, OH · 46901, IN · 07024, NJ · 92831, CA · 07109, NJ · 94044, CA
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 03103. 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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