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 a county in Pennsylvania with a population of 73,255. It ranks #37 among counties in Pennsylvania by population. The median age is 47.0, older than the national median. The population is 52.4% male and 47.6% female.
The median household income in Somerset County is $59,378, below the US median of $74,580. 7.3% of residents live below the federal poverty level. Home values sit at a median of $130,600, with monthly rent averaging $749. The homeownership rate of 80.3% is higher than the national rate of 64.8%.
Educational attainment in Somerset County reflects 17.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 25.2 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+
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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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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.