County Maps US

Harrison County, Kentucky

A county in Kentucky, ranked 61 of 120 by population.

CountyFIPS 21097

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

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Population
19,627
+917 (+4.9%) since 2020
Land area
306.5
square miles. A further 1.1% of the total area is water
Population density
64.0
people per square mile, computed rather than published
County seat
Cynthiana
Seat of county government.
Established
1793
232 years ago
Largest city
Cynthiana city
Population 6,576.

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 Harrison 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 Harrison County, Kentucky 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 695 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 Harrison County ranks

Position among the 120 counties of Kentucky, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn KentuckyNationally
Population19,62761st of 1201,850th of 3,144
Land area306.5 sq mi60th of 1202,795th of 3,144
Population density64.0 per sq mi57th of 1201,255th of 3,144
Median household income$66,44220th of 1201,475th of 3,143

Full data for Harrison County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population19,627Vintage 2025 Population Estimates
Population in 202018,710Vintage 2025 Population Estimates
2020 estimates base?18,682Vintage 2025 Population Estimates
Land area306.5 sq mi2025 Gazetteer Files
Water area3.4 sq mi2025 Gazetteer Files
Total area309.9 sq mi2025 Gazetteer Files
Population density?64.0 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$66,442American Community Survey 2020-2024 5-Year Estimates
Median home value$202,100American Community Survey 2020-2024 5-Year Estimates
Median age42.1American Community Survey 2020-2024 5-Year Estimates
Households7,293American Community Survey 2020-2024 5-Year Estimates
Housing units8,186American 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
-38
233 births, 271 deaths
Net migration
+199
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 7 areas bordering Harrison 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
Bourbon CountyKentucky22 mi20,243
Scott CountyKentucky20 mi62,262
Pendleton CountyKentucky20 mi14,800
Robertson CountyKentucky14 mi2,325
Nicholas CountyKentucky7.8 mi7,949
Grant CountyKentucky7.4 mi26,181
Bracken CountyKentucky6.2 mi8,511

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

All 120 counties of Kentucky

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

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