County Maps US

Highland County, Ohio

A county in Ohio, ranked 56 of 88 by population.

CountyFIPS 39071

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

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Population
43,823
+460 (+1.1%) since 2020
Land area
553.1
square miles. A further 0.8% of the total area is water
Population density
79.2
people per square mile, computed rather than published
County seat
Hillsboro
Seat of county government.
Established
1805
220 years ago
Largest city
Hillsboro city
Population 6,763.

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 Highland 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 Highland 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 713 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 Highland 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
Population43,82356th of 881,125th of 3,144
Land area553.1 sq mi15th of 881,888th of 3,144
Population density79.2 per sq mi67th of 881,088th of 3,144
Median household income$65,78549th of 881,566th of 3,143

Full data for Highland County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population43,823Vintage 2025 Population Estimates
Population in 202043,363Vintage 2025 Population Estimates
2020 estimates base?43,317Vintage 2025 Population Estimates
Land area553.1 sq mi2025 Gazetteer Files
Water area4.7 sq mi2025 Gazetteer Files
Total area557.8 sq mi2025 Gazetteer Files
Population density?79.2 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$65,785American Community Survey 2020-2024 5-Year Estimates
Median home value$168,900American Community Survey 2020-2024 5-Year Estimates
Median age41.0American Community Survey 2020-2024 5-Year Estimates
Households16,938American Community Survey 2020-2024 5-Year Estimates
Housing units19,036American 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
-22
521 births, 543 deaths
Net migration
+140
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 Highland 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
Brown CountyOhio26 mi44,397
Clinton CountyOhio21 mi42,301
Ross CountyOhio18 mi76,429
Adams CountyOhio16 mi27,865
Fayette CountyOhio12 mi28,552
Pike CountyOhio10.0 mi27,061

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.