County Maps US

Caldwell County, Kentucky

A county in Kentucky, ranked 88 of 120 by population.

CountyFIPS 21033

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

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Population
12,609
-33 (-0.3%) since 2020
Land area
344.8
square miles. A further 1.0% of the total area is water
Population density
36.6
people per square mile, computed rather than published
County seat
Princeton
Seat of county government.
Established
1809
216 years ago
Largest city
Princeton city
Population 6,168.

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 Caldwell 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 Caldwell 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 638 by 800 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 Caldwell 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
Population12,60988th of 1202,245th of 3,144
Land area344.8 sq mi47th of 1202,693rd of 3,144
Population density36.6 per sq mi95th of 1201,758th of 3,144
Median household income$59,58355th of 1202,116th of 3,143

Full data for Caldwell County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population12,609Vintage 2025 Population Estimates
Population in 202012,642Vintage 2025 Population Estimates
2020 estimates base?12,653Vintage 2025 Population Estimates
Land area344.8 sq mi2025 Gazetteer Files
Water area3.3 sq mi2025 Gazetteer Files
Total area348.2 sq mi2025 Gazetteer Files
Population density?36.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$59,583American Community Survey 2020-2024 5-Year Estimates
Median home value$118,500American Community Survey 2020-2024 5-Year Estimates
Median age42.4American Community Survey 2020-2024 5-Year Estimates
Households5,025American Community Survey 2020-2024 5-Year Estimates
Housing units6,064American 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
-25
153 births, 178 deaths
Net migration
+45
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 Caldwell 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
Hopkins CountyKentucky48 mi45,127
Crittenden CountyKentucky25 mi8,807
Lyon CountyKentucky20 mi9,123
Christian CountyKentucky11 mi70,115
Trigg CountyKentucky9.3 mi14,512
Webster CountyKentucky5.1 mi12,929

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.