County Maps US

Sandusky County, Ohio

A county in Ohio, ranked 43 of 88 by population.

CountyFIPS 39143

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

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Population
58,655
-225 (-0.4%) since 2020
Land area
408.2
square miles. A further 2.3% of the total area is water
Population density
144
people per square mile, computed rather than published
County seat
Fremont
Seat of county government.
Established
1820
205 years ago
Largest city
Fremont city
Population 15,765.

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 Sandusky 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 Sandusky 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 800 by 493 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 Sandusky 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
Population58,65543rd of 88910th of 3,144
Land area408.2 sq mi65th of 882,476th of 3,144
Population density144 per sq mi35th of 88721st of 3,144
Median household income$62,29560th of 881,866th of 3,143

Full data for Sandusky County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population58,655Vintage 2025 Population Estimates
Population in 202058,880Vintage 2025 Population Estimates
2020 estimates base?58,908Vintage 2025 Population Estimates
Land area408.2 sq mi2025 Gazetteer Files
Water area9.5 sq mi2025 Gazetteer Files
Total area417.7 sq mi2025 Gazetteer Files
Population density?144 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$62,295American Community Survey 2020-2024 5-Year Estimates
Median home value$160,700American Community Survey 2020-2024 5-Year Estimates
Median age42.5American Community Survey 2020-2024 5-Year Estimates
Households24,686American Community Survey 2020-2024 5-Year Estimates
Housing units26,501American 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
-167
546 births, 713 deaths
Net migration
+169
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 Sandusky 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
Seneca CountyOhio30 mi54,522
Ottawa CountyOhio27 mi39,481
Erie CountyOhio17 mi73,296
Wood CountyOhio17 mi134,176
Huron CountyOhio2.4 mi58,250

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.