Clay County, Tennessee

A county in Tennessee, ranked 90 of 95 by population.

CountyFIPS 47027

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

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Population
7,821
+233 (+3.1%) since 2020
Land area
236.5
square miles. A further 8.8% of the total area is water
Population density
33.1
people per square mile, computed rather than published
County seat
Celina
Seat of county government.
Established
1870
155 years ago
Largest city
Celina city
Population 1,412.

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 Clay 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 Clay County, Tennessee 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 449 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 Clay County ranks

Position among the 95 counties of Tennessee, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn TennesseeNationally
Population7,82190th of 952,587th of 3,144
Land area236.5 sq mi84th of 952,936th of 3,144
Population density33.1 per sq mi88th of 951,838th of 3,144
Median household income$39,97293rd of 953,072nd of 3,143

Full data for Clay County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population7,821Vintage 2025 Population Estimates
Population in 20207,588Vintage 2025 Population Estimates
2020 estimates base?7,579Vintage 2025 Population Estimates
Land area236.5 sq mi2025 Gazetteer Files
Water area22.8 sq mi2025 Gazetteer Files
Total area259.3 sq mi2025 Gazetteer Files
Population density?33.1 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$39,972American Community Survey 2020-2024 5-Year Estimates
Median home value$136,400American Community Survey 2020-2024 5-Year Estimates
Median age48.5American Community Survey 2020-2024 5-Year Estimates
Households3,486American Community Survey 2020-2024 5-Year Estimates
Housing units4,005American 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
-74
69 births, 143 deaths
Net migration
+83
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 Clay 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
Jackson CountyTennessee28 mi12,466
Overton CountyTennessee22 mi23,787
Monroe CountyKentucky20 mi11,191
Macon CountyTennessee8.9 mi27,663
Cumberland CountyKentucky7.8 mi5,992
Pickett CountyTennessee7.5 mi5,219
Clinton CountyKentucky1.1 mi9,139

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

All 95 counties of Tennessee

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

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