County demographics · Pennsylvania
Washington County, Pennsylvania demographics
Washington County, Pennsylvania (county FIPS 42125) has a median household income of $78,958 (±$2,272) and a total population of 210,042 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. 65 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 | 210,042 | none (controlled estimate) | B01003 |
| Median age | 44.2 years | ±0.2 years | B01002 |
| Households | 88,505 | ±781 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $78,958 | ±$2,272 | B19013 |
| Median value of owner-occupied housing units | $228,500 | ±$4,629 | B25077 |
| Median gross rent | $949 | ±$25 | B25064 |
| Owner-occupied share of occupied housing units | 76.1% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 23.9% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 94.6% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 32.9% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 9.6% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.8% | 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 | 42125 |
| Land area | 857.01 sq mi |
| Water area | 3.84 sq mi |
| Population density | 245 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 |
|---|---|---|---|
| 15301 | 14.2% | 100% | Yes |
| 15021 | 10.7% | 99.5% | Yes |
| 15312 | 8.4% | 100% | Yes |
| 15323 | 8.4% | 100% | Yes |
| 15317 | 5.3% | 100% | Yes |
| 15330 | 5.2% | 100% | Yes |
| 15376 | 4.4% | 100% | Yes |
| 15057 | 4.1% | 65.4% | Yes |
| 15329 | 3.6% | 71.9% | Yes |
| 15377 | 3.3% | 69.3% | Yes |
| 15360 | 3.2% | 100% | Yes |
| 15311 | 2.8% | 100% | Yes |
| 15332 | 2.7% | 86.9% | Yes |
| 15019 | 2.7% | 100% | Yes |
| 15345 | 2.4% | 96.4% | Yes |
| 15022 | 2.2% | 100% | Yes |
| 15423 | 2% | 100% | Yes |
| 15314 | 2% | 100% | Yes |
| 15063 | 1.9% | 60.6% | Yes |
| 15340 | 1.8% | 100% | Yes |
| 15333 | 1.7% | 100% | Yes |
| 15417 | 1.2% | 50.5% | Yes |
| 15367 | 1.2% | 100% | Yes |
| 15427 | 1.1% | 100% | Yes |
| 15342 | 0.4% | 100% | Yes |
| 15322 | 0.3% | 19.4% | |
| 15033 | 0.3% | 100% | Yes |
| 15313 | 0.2% | 100% | Yes |
| 15067 | 0.2% | 100% | Yes |
| 15321 | 0.2% | 85.9% | Yes |
| 15017 | 0.2% | 13.3% | |
| 15026 | 0.2% | 4.7% | |
| 15412 | 0.2% | 100% | Yes |
| 15429 | 0.2% | 100% | Yes |
| 15419 | 0.2% | 100% | Yes |
| 15054 | 0.1% | 100% | Yes |
| 15060 | 0.1% | 100% | Yes |
| 15358 | 0.1% | 100% | Yes |
| 15365 | 0.1% | 100% | Yes |
| 15331 | 0.1% | 100% | Yes |
| 15055 | 0.1% | 100% | Yes |
| 15078 | 0.1% | 100% | Yes |
| 15432 | 0.1% | 100% | Yes |
| 15347 | 0.1% | 100% | Yes |
| 15379 | 0% | 100% | Yes |
| 15361 | 0% | 100% | Yes |
| 15366 | 0% | 100% | Yes |
| 15038 | 0% | 100% | Yes |
| 15324 | 0% | 100% | Yes |
| 15483 | 0% | 100% | Yes |
| 15477 | 0% | 100% | Yes |
| 15363 | 0% | 100% | Yes |
| 15368 | 0% | 100% | Yes |
| 15434 | 0% | 100% | Yes |
| 15126 | 0% | 0.9% | |
| 15129 | 0% | 2.1% | |
| 15348 | 0% | 100% | Yes |
| 15012 | 0% | 0.3% | |
| 15004 | 0% | 100% | Yes |
| 15053 | 0% | 100% | Yes |
| 15241 | 0% | 1% | |
| 15102 | 0% | 0.9% | |
| 15350 | 0% | 100% | Yes |
| 15378 | 0% | 100% | Yes |
| 15370 | 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:125&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/42125" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"42125"}