County Maps US

Venango County, Pennsylvania

A county in Pennsylvania, ranked 44 of 67 by population.

CountyFIPS 42121

Within Pennsylvania
Venango County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data.

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Population
49,346
-1,024 (-2.0%) since 2020
Land area
674.3
square miles. A further 1.3% of the total area is water
Population density
73.2
people per square mile, computed rather than published
County seat
Franklin
Seat of county government.
Established
1805
220 years ago
Largest city
Oil City city
Population 9,301.

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 Venango 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 Venango 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 703 by 800 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 Venango 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
Population49,34644th of 671,021st of 3,144
Land area674.3 sq mi32nd of 671,399th of 3,144
Population density73.2 per sq mi45th of 671,147th of 3,144
Median household income$61,52253rd of 671,931st of 3,143

Full data for Venango County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population49,346Vintage 2025 Population Estimates
Population in 202050,370Vintage 2025 Population Estimates
2020 estimates base?50,465Vintage 2025 Population Estimates
Land area674.3 sq mi2025 Gazetteer Files
Water area8.6 sq mi2025 Gazetteer Files
Total area682.8 sq mi2025 Gazetteer Files
Population density?73.2 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$61,522American Community Survey 2020-2024 5-Year Estimates
Median home value$119,800American Community Survey 2020-2024 5-Year Estimates
Median age47.6American Community Survey 2020-2024 5-Year Estimates
Households21,397American Community Survey 2020-2024 5-Year Estimates
Housing units26,244American 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
-276
420 births, 696 deaths
Net migration
+104
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 Venango 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
Crawford CountyPennsylvania30 mi81,792
Clarion CountyPennsylvania27 mi36,680
Mercer CountyPennsylvania22 mi107,860
Forest CountyPennsylvania19 mi6,614
Butler CountyPennsylvania16 mi200,169
Warren CountyPennsylvania5.2 mi37,038

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.