ZIP code
03878
Somersworth, NH
03878 covers Somersworth in Strafford County, with 12,145 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 03878. Methodology
ZIP code map of 03878
About ZIP code 03878
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 03878. Not ACS. Methodology
People in 03878
Race
- White9,813
- Black or African American212
- American Indian or Alaska Native34
- Asian869
- Native Hawaiian and Pacific Islander6
- Other race254
- Two or more races731
Hispanic or Latino (any race): 508
Age
- Under 101,229
- 10 to 191,299
- 20 to 291,650
- 30 to 391,868
- 40 to 491,494
- 50 to 591,755
- 60 to 691,455
- 70 to 79846
- 80 and older323
Income and housing in 03878
Education
- High school graduate95.0%
- Bachelor's degree28.6%
- Graduate degree8.9%
Places covering 03878
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Somersworth99.3%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Strafford County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
0.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 03878
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 10,905 | |
| 2006 | 10,667 | |
| 2007 | 11,564 | |
| 2008 | 10,828 | |
| 2009 | 10,917 | |
| 2010 | 10,856 | |
| 2011 | 11,859 | 10,805 |
| 2012 | 11,816 | 10,850 |
| 2013 | 11,804 | 10,870 |
| 2014 | 11,827 | 11,180 |
| 2015 | 11,841 | 11,130 |
| 2016 | 11,821 | 10,910 |
| 2017 | 11,855 | 10,810 |
| 2018 | 11,959 | 10,700 |
| 2019 | 11,970 | 10,870 |
| 2020 | 12,085 | 10,990 |
| 2021 | 12,061 | 10,800 |
| 2022 | 12,088 | 10,960 |
| 2023 | 12,145 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 03878
12 nearest ZIP centroids (any distance)
- 03869Rollinsford3.2 miPop 2,452 · Income $82,983
- 03805Newington3.8 miPop — · Income —
- 03901Berwick3.9 miPop 8,094 · Income $77,790
- 03820Dover4.6 miPop 33,150 · Income $92,793
- 03839Rochester5.0 miPop 4,150 · Income $86,932
- 03868Rochester5.6 miPop 5,830 · Income $89,000
- 03823Madbury6.1 miPop 2,121 · Income $144,635
- 03867Rochester6.2 miPop 22,886 · Income $74,397
- 03908South Berwick7.0 miPop 7,384 · Income $97,927
- 03825Barrington8.0 miPop 9,420 · Income $99,706
- 03906North Berwick8.7 miPop 5,275 · Income $95,762
- 03903Eliot9.3 miPop 6,978 · Income $100,472
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 03878, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 03878 FAQ
- What city is ZIP code 03878 in?
- 03878 is in Somersworth, NH.
- What county is 03878 in?
- 03878 is in Strafford County.
- What is the median household income in 03878?
- The median household income in 03878 is $79,691.
- Which ZIP codes are near 03878?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 03878.