County demographics · Pennsylvania
Lancaster County, Pennsylvania demographics
Lancaster County, Pennsylvania (county FIPS 42071) has a median household income of $86,959 (±$1,323) and a total population of 557,931 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. 61 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 | 557,931 | none (controlled estimate) | B01003 |
| Median age | 39.4 years | ±0.3 years | B01002 |
| Households | 212,748 | ±813 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $86,959 | ±$1,323 | B19013 |
| Median value of owner-occupied housing units | $301,100 | ±$4,176 | B25077 |
| Median gross rent | $1,357 | ±$20 | B25064 |
| Owner-occupied share of occupied housing units | 69.8% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 30.2% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 87.5% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 32.4% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 8.2% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 3.4% | 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 | 42071 |
| Land area | 943.92 sq mi |
| Water area | 39.91 sq mi |
| Population density | 591 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 |
|---|---|---|---|
| 17543 | 7% | 100% | Yes |
| 17545 | 7% | 94.1% | Yes |
| 17566 | 6.3% | 100% | Yes |
| 17522 | 4.6% | 100% | Yes |
| 17022 | 4.1% | 70.8% | Yes |
| 17517 | 3.8% | 100% | Yes |
| 17601 | 3.6% | 100% | Yes |
| 17555 | 3.5% | 99% | Yes |
| 17552 | 3.5% | 100% | Yes |
| 17563 | 3.4% | 100% | Yes |
| 17557 | 3.4% | 100% | Yes |
| 17603 | 3.2% | 100% | Yes |
| 17509 | 2.8% | 100% | Yes |
| 17602 | 2.6% | 100% | Yes |
| 17519 | 2.3% | 100% | Yes |
| 17532 | 2.3% | 100% | Yes |
| 17540 | 2.2% | 100% | Yes |
| 17536 | 2.2% | 100% | Yes |
| 17516 | 2.2% | 100% | Yes |
| 17527 | 2.1% | 94.1% | Yes |
| 17562 | 1.8% | 100% | Yes |
| 17572 | 1.7% | 100% | Yes |
| 17512 | 1.7% | 100% | Yes |
| 17560 | 1.7% | 100% | Yes |
| 17584 | 1.6% | 100% | Yes |
| 17529 | 1.6% | 100% | Yes |
| 17579 | 1.6% | 100% | Yes |
| 17578 | 1.5% | 100% | Yes |
| 17518 | 1.5% | 100% | Yes |
| 17565 | 1.4% | 100% | Yes |
| 17535 | 1.3% | 100% | Yes |
| 17569 | 1.3% | 73.9% | Yes |
| 17547 | 1.3% | 100% | Yes |
| 19362 | 1.2% | 38.6% | |
| 17502 | 1.1% | 100% | Yes |
| 17551 | 1.1% | 100% | Yes |
| 17582 | 1% | 100% | Yes |
| 17505 | 0.8% | 100% | Yes |
| 19543 | 0.7% | 29.3% | |
| 17538 | 0.4% | 100% | Yes |
| 19540 | 0.4% | 10% | |
| 17554 | 0.3% | 100% | Yes |
| 17073 | 0.3% | 9.4% | |
| 19363 | 0.2% | 3.7% | |
| 17520 | 0.2% | 100% | Yes |
| 17501 | 0.2% | 100% | Yes |
| 19310 | 0.1% | 7.5% | |
| 19501 | 0.1% | 98% | Yes |
| 19344 | 0.1% | 2.6% | |
| 17581 | 0% | 100% | Yes |
| 17508 | 0% | 100% | Yes |
| 17534 | 0% | 100% | Yes |
| 17570 | 0% | 100% | Yes |
| 19551 | 0% | 0.8% | |
| 17550 | 0% | 100% | Yes |
| 17576 | 0% | 100% | Yes |
| 17506 | 0% | 100% | Yes |
| 17568 | 0% | 100% | Yes |
| 17606 | 0% | 100% | Yes |
| 17507 | 0% | 100% | Yes |
| 17504 | 0% | 100% | Yes |
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:071&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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The same figures, with provenance on every value, from the API (free API key, reference) or from an AI agent through the Olympus MCP server.
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/42071" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"42071"}