County Maps US

Lawrence County, Pennsylvania

A county in Pennsylvania, ranked 33 of 67 by population.

CountyFIPS 42073

Within Pennsylvania
Lawrence County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks New Castle, the county seat, located via the 2025 Census Gazetteer.

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Population
83,911
-2,050 (-2.4%) since 2020
Land area
357.4
square miles. A further 1.2% of the total area is water
Population density
235
people per square mile, computed rather than published
County seat
New Castle
Seat of county government.
Established
1849
176 years ago
Largest city
New Castle city
Population 21,175.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Lawrence County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Lawrence County, Pennsylvania from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 707 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Lawrence County ranks

Position among the 67 counties of Pennsylvania, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn PennsylvaniaNationally
Population83,91133rd of 67697th of 3,144
Land area357.4 sq mi61st of 672,665th of 3,144
Population density235 per sq mi23rd of 67518th of 3,144
Median household income$61,93152nd of 671,901st of 3,143

Full data for Lawrence County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population83,911Vintage 2025 Population Estimates
Population in 202085,961Vintage 2025 Population Estimates
2020 estimates base?86,065Vintage 2025 Population Estimates
Land area357.4 sq mi2025 Gazetteer Files
Water area4.4 sq mi2025 Gazetteer Files
Total area361.8 sq mi2025 Gazetteer Files
Population density?235 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$61,931American Community Survey 2020-2024 5-Year Estimates
Median home value$147,200American Community Survey 2020-2024 5-Year Estimates
Median age44.9American Community Survey 2020-2024 5-Year Estimates
Households36,121American Community Survey 2020-2024 5-Year Estimates
Housing units39,591American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-473
717 births, 1,190 deaths
Net migration
+298
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 5 areas bordering Lawrence County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Mercer CountyPennsylvania24 mi107,860
Beaver CountyPennsylvania19 mi166,032
Butler CountyPennsylvania16 mi200,169
Mahoning CountyOhio16 mi224,706
Columbiana CountyOhio3.4 mi99,377

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 67 counties of Pennsylvania

Open the interactive Pennsylvania county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.