County Maps US

Lorain County, Ohio

A county in Ohio, ranked 9 of 88 by population.

CountyFIPS 39093

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

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Population
323,219
+9,705 (+3.1%) since 2020
Land area
490.5
square miles. A further 46.8% of the total area is water
Population density
659
people per square mile, computed rather than published
County seat
Elyria
Seat of county government.
Established
1824
201 years ago
Largest city
Lorain city
Population 65,366.

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 Lorain 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 Lorain County, Ohio 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 645 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 Lorain County ranks

Position among the 88 counties of Ohio, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn OhioNationally
Population323,2199th of 88232nd of 3,144
Land area490.5 sq mi28th of 882,122nd of 3,144
Population density659 per sq mi9th of 88220th of 3,144
Median household income$73,34729th of 88951st of 3,143

Full data for Lorain County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population323,219Vintage 2025 Population Estimates
Population in 2020313,514Vintage 2025 Population Estimates
2020 estimates base?312,980Vintage 2025 Population Estimates
Land area490.5 sq mi2025 Gazetteer Files
Water area432.2 sq mi2025 Gazetteer Files
Total area922.8 sq mi2025 Gazetteer Files
Population density?659 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$73,347American Community Survey 2020-2024 5-Year Estimates
Median home value$223,200American Community Survey 2020-2024 5-Year Estimates
Median age42.1American Community Survey 2020-2024 5-Year Estimates
Households127,544American Community Survey 2020-2024 5-Year Estimates
Housing units136,548American 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
-479
3,076 births, 3,555 deaths
Net migration
+2,534
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 Lorain 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
Cuyahoga CountyOhio47 mi1,232,925
Medina CountyOhio30 mi185,025
Erie CountyOhio29 mi73,296
Huron CountyOhio15 mi58,250
Ashland CountyOhio8.6 mi52,523

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

All 88 counties of Ohio

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

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