County demographics · Pennsylvania
Somerset County, Pennsylvania demographics
Somerset County, Pennsylvania (county FIPS 42111) has a median household income of $61,446 (±$1,812) and a total population of 72,799 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 41 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 72,799 | none (controlled estimate) | B01003 |
| Median age | 46.9 years | ±0.4 years | B01002 |
| Households | 29,344 | ±423 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $61,446 | ±$1,812 | B19013 |
| Median value of owner-occupied housing units | $150,600 | ±$5,309 | B25077 |
| Median gross rent | $753 | ±$35 | B25064 |
| Owner-occupied share of occupied housing units | 80.4% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 19.6% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 90.9% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 17.9% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 11% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.9% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 42111 |
| Land area | 1,075.05 sq mi |
| Water area | 6.6 sq mi |
| Population density | 68 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 15501 | 11.7% | 95.4% | Yes |
| 15552 | 9.5% | 100% | Yes |
| 15557 | 8.3% | 99.2% | Yes |
| 15530 | 8.1% | 100% | Yes |
| 15538 | 6.3% | 100% | Yes |
| 15963 | 6.2% | 74.3% | Yes |
| 15563 | 5.1% | 100% | Yes |
| 15424 | 5% | 75.2% | Yes |
| 15531 | 5% | 87.4% | Yes |
| 15540 | 4% | 100% | Yes |
| 15541 | 3.5% | 100% | Yes |
| 15542 | 3.4% | 100% | Yes |
| 15558 | 3.1% | 100% | Yes |
| 15926 | 2.9% | 100% | Yes |
| 15924 | 2.5% | 100% | Yes |
| 15936 | 2.4% | 100% | Yes |
| 15551 | 2.3% | 100% | Yes |
| 15935 | 2.1% | 100% | Yes |
| 15545 | 1.9% | 41.8% | |
| 15411 | 1.7% | 100% | Yes |
| 15905 | 1.6% | 41.1% | |
| 15622 | 1.2% | 34.7% | |
| 15928 | 0.6% | 100% | Yes |
| 15502 | 0.4% | 100% | Yes |
| 15562 | 0.3% | 100% | Yes |
| 15937 | 0.2% | 100% | Yes |
| 15953 | 0.1% | 100% | Yes |
| 15546 | 0.1% | 100% | Yes |
| 15565 | 0.1% | 100% | Yes |
| 15532 | 0.1% | 100% | Yes |
| 15547 | 0.1% | 100% | Yes |
| 15520 | 0.1% | 100% | Yes |
| 15564 | 0.1% | 100% | Yes |
| 15544 | 0% | 100% | Yes |
| 15534 | 0% | 0.9% | |
| 15555 | 0% | 100% | Yes |
| 15561 | 0% | 100% | Yes |
| 15510 | 0% | 100% | Yes |
| 15560 | 0% | 100% | Yes |
| 15559 | 0% | 0.1% | |
| 15904 | 0% | 0% |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:111&in=state:42
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/42111" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"42111"}