Somersworth, NH demographics:
population, income, and more

Total population
12,111
0.4% year-over-year change
Median household income
$74,504/yr
-6.5% year-over-year change
Housing units
5,646
-0.6% year-over-year change

Somersworth population

How many people live in Somersworth

Somersworth is home to 12,111 residents, according to the most recent Census data. Gender-wise, 46.8% of Somersworth locals are male, and 53.2% are female.

Total population
12,111
0.4% year-over-year change
Gender ratio
Male
46.8%
5,667
Female
53.2%
6,444
Value Percent YoY change
Male 5,667 46.8% -6.0%
Female 6,444 53.2% 6.9%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Somersworth is 38, with the population distributed as follows: about 15.4% are children under 15, then 12.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 30.8% of the population, while another 27.2% fall into the 45 to 64 bracket. Finally, around 14% are 65 or older.

Median age
38.4
Age breakdown
Under 15
15.4%
15 to 24
12.6%
25 to 44
30.8%
45 to 64
27.2%
Over 65
14%
Value Percent YoY change
Under 15 1,863 15.4% 9.7%
15 to 24 1,531 12.6% 14.0%
25 to 44 3,725 30.8% -5.3%
45 to 64 3,292 27.2% 0.8%
Over 65 1,700 14% -6.5%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Somersworth, 90.6% of the population are US-born citizens, while 7.2% have gained naturalized citizenship. At the same time, 2.2% of residents are non-citizens. As for race, 84.1% of locals are Caucasian, 2.2% are African American and 2.6% have Asian roots. There’s also a share of 9.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
90.6%
Non-U.S.-born citizens
7.2%
Non-citizens
2.2%
Value Percent YoY change
U.S.-born citizens 10,973 90.6% -0.7%
Non-U.S.-born citizens 869 7.2% 27.1%
Non-citizens 269 2.2% -16.2%
Racial breakdown
White
84.1%
Black or African American
2.2%
American Indian and Alaska Native
0%
Asian
2.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
9.8%
Other
1.4%
Value Percent
White 10,188 84.1%
Black or African American 263 2.2%
Asian 309 2.6%
Two or more races 1,188 9.8%
Other 163 1.4%

Households in Somersworth

A peek inside Somersworth households

Somersworth has 5,201 households, with an average of 2 members in each. Of these, 59.8% are families, while the remaining 40.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
5,201
-2.0% year-over-year change
Average people per household
2
Non-family households
2,091
Family households
3,110
Value Percent YoY change
Non-family households 2,091 40.2% -1.3%
Family households 3,110 59.8% -2.4%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Somersworth

The housing landscape of Somersworth

Somersworth's housing consists of 5,646 units, with 44.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.4% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 6.6% of the housing landscape.

Housing units
5,646
-0.6% year-over-year change
Housing types
Value Percent
1 unit, detached 2,497 44.2%
1 unit, attached 23 0.4%
2 units 671 11.9%
3 or 4 units 879 15.6%
5 to 9 units 224 4%
10 to 19 units 273 4.8%
20 to 49 units 389 6.9%
50 or more units 315 5.6%
Mobile home 375 6.6%
Homes built since 2020
99
45.6% year-over-year change

The age of buildings in Somersworth

In Somersworth, the median construction year is 1967. About 23.2% of homes were built before the 1940s, with another 8.7% going up by 1949. Most development happened in the second half of the 20th century. Then, 4% of homes were added from 2000 to 2009, 5.5% between 2010 and 2019, and 1.8% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,311 23.2% 1.4%
Built between 1940 and 1949 492 8.7% 47.8%
Built between 1950 and 1959 785 13.9% 8.0%
Built between 1960 and 1969 346 6.1% -28.5%
Built between 1970 and 1979 690 12.2% -16.3%
Built between 1980 and 1989 1,085 19.2% 4.2%
Built between 1990 and 1999 303 5.4% -2.6%
Built between 2000 and 2009 225 4% -41.4%
Built between 2010 and 2019 310 5.5% 46.2%
Built in 2020 or later 99 1.8% 45.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Somersworth occupancy rates

Out of the 5,201 occupied housing units in Somersworth, 57.8% are owner-occupied, while 42.2% are lived in by tenants. Meanwhile, 7.9% of all homes on the local market sit vacant.

Occupied housing units
5,201
-2.0% year-over-year change
Occupancy breakdown
Renter occupied
2,193
Owner occupied
3,008
Value Percent YoY
change
Renter occupied 2,193 42.2% 8.6%
Owner occupied 3,008 57.8% -8.4%
Unoccupied housing units
7.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Somersworth housing costs

Housing costs in Somersworth come to a median of $1,635 per month, while tenants specifically pay a median gross rent of $1,477.

Median housing costs per month
$1,635/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Somersworth
$1,477/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Somersworth

Somersworth education at a glance

About 31.1% of the population in Somersworth went to high school, while 24.7% pursued college studies. Another 13.2% earned an associate degree and 20.1% hold a bachelor’s. Meanwhile, 9% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 192 2% 45.5%
High school diploma 3,014 31.1% 0.8%
College diploma 2,401 24.7% -5.4%
Associate degree 1,277 13.2% -11.3%
Bachelor's degree 1,950 20.1% 4.4%
Graduate degree 871 9% 8.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Somersworth

How much people earn in Somersworth

The average annual household income in Somersworth was $94,445 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0.7% change from the previous year. At the same time, the median income stood at $74,504, reflecting a -6.5% shift over the same period.

Average household income in Somersworth
$94,445/year
0.7% year-over-year change
Median household income in Somersworth
$74,504/year
-6.5% year-over-year change

Somersworth income by age

In Somersworth, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $102,378. Those with someone between 45 and 64 in charge, often well established professionally, earn $83,949 overall. Overall, 88.7% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $102,378 1.3%
45 - 64 $83,949 4.1%
Over 65 $50,417 -17.4%
Above poverty level
10,616
Below poverty level
1,353
Value Percent YoY
change
Above poverty level 10,616 88.7% 0.7%
Below poverty level 1,353 11.3% -1.2%

Average renter income in Somersworth

To get a better sense of what renters earn on average in Somersworth, their median household income was $59,574 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 29.8%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$59,574
Rent-to-income ratio
29.8%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Somersworth

Workforce and job types in Somersworth

The job market in Somersworth is powered by 6,984 working residents, spread across a range of industries and roles. 80.3% of the working population are employed in professional or administrative positions, while 19.7% are in hands-on or service-based jobs. Also, 4.6% run their own businesses, 69.9% are employed by private companies, and 16% work in the public sector.

Workforce demographics

Working population
6,984
1.0% year-over-year change
White collar
5,608
Blue collar
1,376
Value Percent YoY change
White collar 5,608 80.3% 6.3%
Blue collar 1,376 19.7% -15.8%
Employer type
Self employees
4.6%
Private companies
69.9%
Governmental workers
16%
Not for profit companies
9.4%
Value Percent YoY change
Self employees 324 4.6% -9.8%
Private companies 4,881 69.9% -0.8%
Governmental workers 1,120 16% 7.4%
Not for profit companies 659 9.4% 11.5%
Unemployment rate
2.8%
14.1% year-over-year change

Available workforce

The unemployment rate in Somersworth stands at 2.8%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Somersworth

How people get around in Somersworth

Commuting methods vary: 85.4% of residents travel by personal vehicle and 0.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 5,768 85.4% -1.4%
Bus or trolleybus 155 2.3% -7.7%
Walk 18 0.3% N/A
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Somersworth by zipcode?

Zipcode Population Number of households Median income Average income
03878 12,205 5,245 $75,136 $94,593

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FAQs about Somersworth demographics 

What is the total population of Somersworth?

Somersworth has a total population of 12,111 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.4% compared to a year ago.

What is the gender ratio in Somersworth?

The gender ratio in Somersworth is as follows:
  • 46.8% males (5,667 residents)
  • 53.2% females (6,444 residents)

What is the median age in Somersworth?

The median age in Somersworth is 38.4.

What is the age distribution of the population in Somersworth?

The age distribution in Somersworth is as follows:
  • Under 15: 15.4% (1,863 residents)
  • Ages 15-24: 12.6% (1,531 residents)
  • Ages 25-44: 30.8% (3,725 residents)
  • Ages 45-64: 27.2% (3,292 residents)
  • Over 65: 14% (1,700 residents)

What is the racial and ethnic makeup of Somersworth?

The racial and ethnic makeup of Somersworth is as follows:
  • White: 84.1% (10,188 residents)
  • Black or African American: 2.2% (263 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 2.6% (309 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 9.8% (1,188 residents)
  • Other: 1.4% (163 residents)

What percentage of the population in Somersworth are U.S.-born citizens?

U.S.-born citizens represent 90.6% of the population in Somersworth.

How many housing units are there in Somersworth?

There are 5,646 housing units in Somersworth, reflecting a -0.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Somersworth and what is the average household size?

Somersworth has a total of 5,201 households, with an average of 2 people in each.

What is the median household income in Somersworth?

Somersworth has a median household income of $74,504, representing a -6.5% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Somersworth?

The employment rate is 97.2% in Somersworth, with a workforce of 6,984 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 80.3% (5,608 residents)
  • Blue-collar workers: 19.7% (1,376 residents)

Places of employment:
  • Self-employed: 4.6% (324 residents)
  • Private companies: 69.9% (4,881 residents)
  • Governmental workers: 16% (1,120 residents)
  • Not-for-profit companies: 9.4% (659 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025