Somerset County, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 37th-largest in Pennsylvania
The population of Somerset County, Pennsylvania is 73,255 as of the 2023 American Community Survey, making it the 37th-largest county in Pennsylvania. The median household income is $59,378, the median home value is $130,600, and the median age is 47.0.
The population of Somerset County has declined 7.2% since 2010 (77,763 → 72,134), a -0.54% annualized rate.
73,255
Population
-0.54%
Annual growth
68
People / sq mi
$59,378
Median Income
$130,600
Median Home Value
Somerset County covers 1,075 sq mi of land at 68.1 people per square mile.
About Somerset County, PA
Somerset County is distinguished by its share of foreign-born residents, 13.2% of the population. With 73,255 residents, Somerset County is a county in Pennsylvania. It ranks #37 among counties in Pennsylvania by population.
Median household income is $59,378, below the US median of $78,538. About 7.3% of residents live below the federal poverty level, below the national 12.4%. Homes are comparatively cheap — a median value of $130,600, with typical rent around $749.
Degree attainment is on the lower side for US counties: 17.3% of adults hold a bachelor’s degree, below the national 35.0%. Remote work is below the national 14.0% at 7.5%, and the average commute runs about 25 minutes each way.
Somerset County Population History (2010-2024)
The county of Somerset County had a population of 77,763 in 2010 and 72,134 in 2024, a -7.2% growth over 14 years. The peak was 77,763 in 2010. Average annual growth rate: -0.53%.
72,134
Population (2024)
77,763
Population (2010)
77,763
Peak (2010)
-0.53%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 77,763 |
| 2011 | 77,287 |
| 2012 | 77,028 |
| 2013 | 76,607 |
| 2014 | 76,167 |
| 2015 | 75,404 |
| 2016 | 74,890 |
| 2017 | 74,273 |
| 2018 | 73,951 |
| 2019 | 73,442 |
| 2020 | 74,014 |
| 2021 | 72,994 |
| 2022 | 72,613 |
| 2023 | 72,233 |
| 2024 | 72,134 |
Race & Ethnicity
| White | 94.5% |
| Black or African American | 1.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Age & Sex
47.0
Median Age
47.6%
Female
52.4%
Male
23.4%
Age 65+
Age Distribution
Children (under 15): 14.9% · Seniors (65+): 23.4%
Income & Poverty
| Median household income | $59,378$-16,703 vs state |
| Mean household income | $75,974 |
| Per-capita income | $31,736 |
| Poverty rate | 7.3%-0.8% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 52.9% |
Top Industries by Employment
The largest employment sector in Somerset County is professional & business services, accounting for 21.9% of workers.
How residents commute
0.2%
Drive alone
2.2%
Carpool
82.0%
Public transit
7.5%
Work from home
25.2 min
Avg commute
Housing
$130,600$-109,900 vs state
Median home value
$749
Median rent
80.3%
Homeownership rate
37,800
Total housing units
76.9%
Occupied
23.1%
Vacant
19.7%
Renter-occupied
Social & access
94.2%
With health insurance
86.6%
With broadband internet
13.2%
Foreign-born
8.0%
Veterans (18+)
16.6%
With a disability
96.4%
Speak language other than English at home
Education
90.1%
High School+
17.3%
Bachelor's+
Largest cities in Pennsylvania
Other counties in Pennsylvania
Part of Pennsylvania
Metro areas in Pennsylvania
County rankings
Frequently Asked Questions
Somerset County, Pennsylvania has a population of 73,255 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 37th-largest county in Pennsylvania. Population density is 68 people per square mile.
The population of Somerset County has declined 7.2% since 2010 (77,763 → 72,134), a -0.54% annualized rate.
The median household income in Somerset County, Pennsylvania is $59,378, with mean (average) household income of $75,974 and per-capita income of $31,736. 7.3% of residents live below the federal poverty level.
In Somerset County, the largest racial and ethnic groups are White (94.5%), Black or African American (1.9%), Hispanic or Latino (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Somerset County, Pennsylvania is 47.0 years. Residents are 47.6% female and 52.4% male.
The median home value in Somerset County is $130,600 and median monthly rent is $749. 80.3% of occupied housing units are owner-occupied. The county has 37,800 total housing units, 23.1% of which are vacant.
The largest employment sector in Somerset County, Pennsylvania is professional, scientific, and management services, employing 21.9% of workers. The unemployment rate is 3.0%.
Philadelphia is among the largest cities associated with Somerset County, Pennsylvania, with a population of 1,582,432.
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Population, race, income, age, and trends across Pennsylvania
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.