What kinds of homes are in Somersworth, NH?

Name: Types of homes in Somersworth, NH, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Somersworth, NH has 5,646 (±361) homes (2020–2024 American Community Survey).

That is about 576 homes per square mile of land.

44.2% are detached single-family houses.

27.5% are in buildings of two to four units.

21.3% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 5,646 (±361)
Detached houses: 44.2%
2–4 unit buildings: 27.5%
5+ unit buildings: 21.3%

Homes in Somersworth by building size

Housing units by units in structure, 2020–2024
Building type	Somersworth	Strafford County	New Hampshire	United States
Single-family, detached	44.2% (±5.1 points)	55.0%	63.3%	61.3%
Single-family, attached (townhouse, rowhouse)	0.4% (±0.4 points)	4.4%	5.5%	6.2%
2 units	11.9% (±4.3 points)	5.8%	5.2%	3.4%
3 or 4 units	15.6% (±4.7 points)	7.7%	5.3%	4.3%
5 to 9 units	4.0% (±2.3 points)	5.9%	4.6%	4.5%
10 to 19 units	4.8% (±3.1 points)	3.4%	3.1%	4.3%
20 or more units	12.5% (±4.5 points)	9.5%	7.7%	10.3%
Mobile home	6.6% (±2.3 points)	8.2%	5.2%	5.6%
Boat, RV, van, etc.	0.0% (±0.6 points)	0.0%	0.0%	0.1%

In Somersworth, the share of homes in buildings of five or more units is not measurably different from Strafford County (18.8%).

It is not measurably different from New Hampshire (15.4%).

It is not measurably different from the national figure (19.1%).

Homes in buildings of 5 or more units in places near Somersworth

Nearest places with a published estimate, compared with Somersworth
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Somersworth	—	21.3% (±5.9 points)	—
Berwick (community)	1.7 mi	23.9% (±15.9 points)	Not measurably different
Rollinsford	3.2 mi	19.7% (±8.3 points)	Not measurably different
Berwick	3.9 mi	8.3% (±5.2 points)	Lower
Dover	4.6 mi	32.1% (±3.9 points)	Higher
South Berwick (community)	4.8 mi	17.1% (±8.6 points)	Not measurably different
Rochester	5.5 mi	15.7% (±2.7 points)	Not measurably different
Madbury	6.1 mi	0.0% (±7.8 points)	Lower
South Berwick	7.0 mi	8.5% (±4.0 points)	Lower

Nearby places with a measurably lower figure: Berwick, ME (8.3%), Madbury, NH (0.0%), South Berwick, ME (8.5%).

Nearby places with a measurably higher figure: Dover, NH (32.1%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Strafford County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Dover	32.1% (±3.9 points)
2	Durham	29.4% (±5.2 points)
3	Somersworth	21.3% (±5.9 points)
4	Rollinsford	19.7% (±8.3 points)
5	Rochester	15.7% (±2.7 points)
6	Farmington	12.8% (±5.0 points)
7	Barrington	6.5% (±3.7 points)
8	Lee	2.6% (±3.6 points)
9	Milton	0.7% (±2.6 points)

Showing 9 of 13 places in Strafford County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Somersworth

How many homes are in Somersworth?

Somersworth, NH has an estimated 5,646 (±361) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Somersworth houses or apartments?

44.2% are detached houses and 0.4% attached houses, while 48.8% are in buildings of two or more units.

How many two-family and small multifamily homes are in Somersworth?

27.5% of homes in Somersworth are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Somersworth city, New Hampshire

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Somersworth city, New Hampshire (place:69940, in state:33).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.