County Maps US

Grayson County, Kentucky

A county in Kentucky, ranked 40 of 120 by population.

CountyFIPS 21085

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

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Population
27,406
+948 (+3.6%) since 2020
Land area
499.5
square miles. A further 2.2% of the total area is water
Population density
54.9
people per square mile, computed rather than published
County seat
Leitchfield
Seat of county government.
Established
1810
215 years ago
Largest city
Leitchfield city
Population 7,015.

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 Grayson 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 Grayson 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 504 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 Grayson 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
Population27,40640th of 1201,533rd of 3,144
Land area499.5 sq mi11th of 1202,082nd of 3,144
Population density54.9 per sq mi66th of 1201,384th of 3,144
Median household income$50,75782nd of 1202,729th of 3,143

Full data for Grayson County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population27,406Vintage 2025 Population Estimates
Population in 202026,458Vintage 2025 Population Estimates
2020 estimates base?26,419Vintage 2025 Population Estimates
Land area499.5 sq mi2025 Gazetteer Files
Water area11.5 sq mi2025 Gazetteer Files
Total area511 sq mi2025 Gazetteer Files
Population density?54.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$50,757American Community Survey 2020-2024 5-Year Estimates
Median home value$164,600American Community Survey 2020-2024 5-Year Estimates
Median age40.5American Community Survey 2020-2024 5-Year Estimates
Households10,129American Community Survey 2020-2024 5-Year Estimates
Housing units13,369American 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
+49
398 births, 349 deaths
Net migration
+178
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 Grayson 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
Breckinridge CountyKentucky47 mi21,503
Hart CountyKentucky37 mi20,117
Hardin CountyKentucky34 mi113,482
Ohio CountyKentucky23 mi23,934
Edmonson CountyKentucky19 mi12,749
Butler CountyKentucky10 mi12,520

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.