County Maps US

Northampton County, Pennsylvania

A county in Pennsylvania, ranked 13 of 67 by population.

CountyFIPS 42095

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

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Population
324,411
+11,602 (+3.7%) since 2020
Land area
369.8
square miles. A further 2.0% of the total area is water
Population density
877
people per square mile, computed rather than published
County seat
Easton
Seat of county government.
Established
1752
273 years ago
Largest city
Bethlehem city
Population 59,370 for the whole place, which extends beyond this county.

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 Northampton 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 Northampton 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 785 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 Northampton 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
Population324,41113th of 67230th of 3,144
Land area369.8 sq mi59th of 672,631st of 3,144
Population density877 per sq mi7th of 67176th of 3,144
Median household income$89,1846th of 67321st of 3,143

Full data for Northampton County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population324,411Vintage 2025 Population Estimates
Population in 2020312,809Vintage 2025 Population Estimates
2020 estimates base?312,951Vintage 2025 Population Estimates
Land area369.8 sq mi2025 Gazetteer Files
Water area7.4 sq mi2025 Gazetteer Files
Total area377.2 sq mi2025 Gazetteer Files
Population density?877 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$89,184American Community Survey 2020-2024 5-Year Estimates
Median home value$308,600American Community Survey 2020-2024 5-Year Estimates
Median age42.0American Community Survey 2020-2024 5-Year Estimates
Households122,624American Community Survey 2020-2024 5-Year Estimates
Housing units129,448American 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
-373
2,739 births, 3,112 deaths
Net migration
+1,692
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 Northampton 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
Warren CountyNew Jersey35 mi112,953
Lehigh CountyPennsylvania31 mi384,383
Monroe CountyPennsylvania23 mi167,179
Bucks CountyPennsylvania8.8 mi647,828
Carbon CountyPennsylvania7.5 mi65,868

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.