County Maps US

Perry County, Pennsylvania

A county in Pennsylvania, ranked 46 of 67 by population.

CountyFIPS 42099

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

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Population
46,806
+976 (+2.1%) since 2020
Land area
551.5
square miles. A further 0.7% of the total area is water
Population density
84.9
people per square mile, computed rather than published
County seat
Bloomfield
Seat of county government.
Established
1820
205 years ago
Largest city
Marysville borough
Population 2,717.

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 Perry 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 Perry 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 635 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 Perry 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
Population46,80646th of 671,054th of 3,144
Land area551.5 sq mi40th of 671,895th of 3,144
Population density84.9 per sq mi43rd of 671,035th of 3,144
Median household income$79,44415th of 67608th of 3,143

Full data for Perry County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population46,806Vintage 2025 Population Estimates
Population in 202045,830Vintage 2025 Population Estimates
2020 estimates base?45,836Vintage 2025 Population Estimates
Land area551.5 sq mi2025 Gazetteer Files
Water area4.1 sq mi2025 Gazetteer Files
Total area555.5 sq mi2025 Gazetteer Files
Population density?84.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$79,444American Community Survey 2020-2024 5-Year Estimates
Median home value$236,400American Community Survey 2020-2024 5-Year Estimates
Median age43.8American Community Survey 2020-2024 5-Year Estimates
Households18,299American Community Survey 2020-2024 5-Year Estimates
Housing units20,049American 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
-63
464 births, 527 deaths
Net migration
+304
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 Perry 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
Cumberland CountyPennsylvania53 mi277,270
Juniata CountyPennsylvania49 mi23,403
Dauphin CountyPennsylvania30 mi293,351
Franklin CountyPennsylvania13 mi160,652
Northumberland CountyPennsylvaniaa single point89,920

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.