Somersworth Population

1790–2026

12,241

2026 projection

2.6% since 2020 (increase)

02K4K6K8K10K12K14K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Somersworth. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202612,241+700.58%
202512,171-450.37%
202412,216+270.22%
202312,189+490.40%
202212,140+470.39%
202112,093+1601.34%
202011,933-600.50%
201911,99300.00%
201811,993-160.13%
201712,009+1040.87%

Showing 10 of 39 years.

Somersworth Demographics

38.4median age

Median age

Female37.1 yrs
Male39.1 yrs

Adults

9,705
1,700 seniors · 18%8,005 other adults

Sex

Female 53.2% · 6,444Male 46.8% · 5,667

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 121 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Somersworth Income

$74,504median household income

Median household income

$74,504

Half of households earn more, half earn less

Median earnings

$56,461

Typical yearly pay for a worker 25 or older.

Poverty rate

11.2%

About 1 in 9 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Somersworth Marital Status

43% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married43%46%41%
Never married38%39%38%
Divorced14%13%15%
Widowed4%2%6%
Separated<1%1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201