County Maps US

Crittenden County, Kentucky

A county in Kentucky, ranked 106 of 120 by population.

CountyFIPS 21055

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

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Population
8,807
-195 (-2.2%) since 2020
Land area
359.6
square miles. A further 3.2% of the total area is water
Population density
24.5
people per square mile, computed rather than published
County seat
Marion
Seat of county government.
Established
1842
183 years ago
Largest city
Marion city
Population 2,879.

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 Crittenden 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 Crittenden 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 764 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 Crittenden 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
Population8,807106th of 1202,509th of 3,144
Land area359.6 sq mi41st of 1202,656th of 3,144
Population density24.5 per sq mi115th of 1202,079th of 3,144
Median household income$46,65690th of 1202,911th of 3,143

Full data for Crittenden County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population8,807Vintage 2025 Population Estimates
Population in 20209,002Vintage 2025 Population Estimates
2020 estimates base?8,986Vintage 2025 Population Estimates
Land area359.6 sq mi2025 Gazetteer Files
Water area11.7 sq mi2025 Gazetteer Files
Total area371.3 sq mi2025 Gazetteer Files
Population density?24.5 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$46,656American Community Survey 2020-2024 5-Year Estimates
Median home value$127,300American Community Survey 2020-2024 5-Year Estimates
Median age42.9American Community Survey 2020-2024 5-Year Estimates
Households3,543American Community Survey 2020-2024 5-Year Estimates
Housing units4,346American 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
-21
106 births, 127 deaths
Net migration
-144
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Crittenden 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
Livingston CountyKentucky32 mi8,863
Caldwell CountyKentucky25 mi12,609
Webster CountyKentucky25 mi12,929
Hardin CountyIllinois20 mi3,588
Union CountyKentucky17 mi12,839
Lyon CountyKentucky16 mi9,123

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.