County Maps US

Clinton County, Pennsylvania

A county in Pennsylvania, ranked 55 of 67 by population.

CountyFIPS 42035

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

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Population
37,870
+489 (+1.3%) since 2020
Land area
889.6
square miles. A further 1.0% of the total area is water
Population density
42.6
people per square mile, computed rather than published
County seat
Lock Haven
Seat of county government.
Established
1839
186 years ago
Largest city
Lock Haven city
Population 8,500.

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 Clinton 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 Clinton 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 601 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 Clinton 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
Population37,87055th of 671,248th of 3,144
Land area889.6 sq mi15th of 67891st of 3,144
Population density42.6 per sq mi58th of 671,617th of 3,144
Median household income$60,81655th of 672,006th of 3,143

Full data for Clinton County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population37,870Vintage 2025 Population Estimates
Population in 202037,381Vintage 2025 Population Estimates
2020 estimates base?37,450Vintage 2025 Population Estimates
Land area889.6 sq mi2025 Gazetteer Files
Water area9.0 sq mi2025 Gazetteer Files
Total area898.6 sq mi2025 Gazetteer Files
Population density?42.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$60,816American Community Survey 2020-2024 5-Year Estimates
Median home value$175,900American Community Survey 2020-2024 5-Year Estimates
Median age39.8American Community Survey 2020-2024 5-Year Estimates
Households15,424American Community Survey 2020-2024 5-Year Estimates
Housing units18,617American 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
-81
384 births, 465 deaths
Net migration
+144
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 6 areas bordering Clinton 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
Centre CountyPennsylvania73 mi157,393
Lycoming CountyPennsylvania41 mi112,587
Potter CountyPennsylvania20 mi15,897
Cameron CountyPennsylvania19 mi4,211
Clearfield CountyPennsylvania5.2 mi78,100
Union CountyPennsylvania1.7 mi42,313

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.