Crittenden County area

Crittenden County, Kentucky covers 371.3 square miles: 359.6 square miles of land and 11.7 square miles of water. Its county seat is Marion. An estimated 8,807 people lived there in 2025.

Official Census measurements · GEOID 210552026 Gazetteer · retrieved September 27, 2026
Land area359.6 mi²
Water area11.7 mi²
Population (2025)8,807
People per mi²24

County outline

Generalized outline of Crittenden County, Kentucky
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Crittenden County is located

Crittenden County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 96.8% of Crittenden County’s measured area and water for 3.2%. Its combined area converts to 961.6 square kilometers or approximately 237,629 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land359.566931.272230,122.2
Water11.72930.3787,506.6
Total371.295961.65237,628.8

How Crittenden County compares

By original Census land area, Crittenden County ranks #41 of 120 in Kentucky and #2656 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.175 times the Kentucky county-equivalent median of 306 square miles. It accounts for 0.9% of the combined county land area in the state.

See the complete Kentucky ranking · What counts as a county equivalent?

Population and density of Crittenden County

The Census Bureau estimates that 8,807 people lived in Crittenden County on July 1, 2025. That ranks #2,583 of 3,222 county equivalents nationally and #106 of 120 in Kentucky. Since the April 1, 2020 estimates base of 8,986, the population has declined by 179 (−2%), compared with +2.2% for Kentucky as a whole.

With 359.6 square miles of land, that is 24 people per square mile (9.5 per km²), placing Crittenden County #2,157 nationally for density and #115 in Kentucky. The median county equivalent has 47 people per square mile; the Kentucky median is 59. Put another way, there are about 26 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate9,0028,9458,9738,9918,9758,807
Change—−57+28+18−16−168

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Crittenden County

1 incorporated place lies at least partly in Crittenden County. Together they are home to 2,879 people (32.7%); the other 5,928 (67.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Marion city, with 2,879 residents in the county.

Metropolitan area

Crittenden County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

6 ZIP Code Tabulation Areas have land in Crittenden County; 2 of them have most of their land inside the county, and the others mainly cover neighboring areas.

420374206442078424114245042459

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Crittenden County

Crittenden County shares a land border with 6 county equivalents, including 1 in Illinois. It has more land than every one of them. The largest neighbor is Caldwell County (344.8 mi²) and the smallest is Hardin County (177.4 mi²). Together with its neighbors, Crittenden County forms a block of 2,083.4 mi² of land, of which it holds 17.3%.

Map of Crittenden County and the 6 county equivalents that border it Caldwell County, Kentucky: 344.8 mi² landLivingston County, Kentucky: 313 mi² landHardin County, Illinois: 177.4 mi² landWebster County, Kentucky: 332 mi² landUnion County, Kentucky: 342.9 mi² landLyon County, Kentucky: 213.8 mi² land
Crittenden County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. CrittendenCompare
Caldwell County344.8about the sameCompare
Union County342.9about the sameCompare
Webster County3321.1× smallerCompare
Livingston County3131.1× smallerCompare
Lyon County213.81.7× smallerCompare
Hardin CountyIllinois177.42× smallerCompare

How big is Crittenden County compared with U.S. states?

Crittenden County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.9 times as much. Kentucky’s county land could hold about 110 areas the size of Crittenden County.

Land area: Crittenden County and the closest-sized states
Crittenden County359.6 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 19 miles (30.5 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Crittenden County?

Crittenden County has more land than 566 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Crittenden County359.6 mi²
Kentucky median306 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Crittenden County at #2,684 nationally by total area, 28 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 3.2%, compared with a national county-equivalent median of 1.2% — 2 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Crittenden County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2655West Carroll Parish, Louisiana359.7Compare
#2656Crittenden County, Kentucky359.6This county
#2657Twiggs County, Georgia359.3Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 37.358149, -88.105010. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 931,272,386 m²; AWATER: 30,377,983 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Crittenden County?

Crittenden County, Kentucky has 359.6 square miles (931.3 km²) of land and 11.7 square miles of water, for a total area of 371.3 square miles. It ranks #2656 of 3,222 U.S. county equivalents by land area.

Is Crittenden County the largest county in Kentucky?

No. Crittenden County ranks #41 of 120 in Kentucky by land area. The largest is Pike County, with 786.2 square miles of land.

What counties border Crittenden County?

Crittenden County shares a land border with Caldwell County, Livingston County, Hardin County, Illinois, Webster County, Union County, and Lyon County.

What is the population of Crittenden County?

The Census Bureau estimates Crittenden County had 8,807 residents on July 1, 2025, ranking #2,583 of 3,222 county equivalents. That is 24 people per square mile of land.

What is the county seat of Crittenden County?

The county seat of Crittenden County is Marion.

Is Crittenden County part of a metropolitan area?

No. Crittenden County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Crittenden County?

6 ZIP Code Tabulation Areas have land in Crittenden County, and 2 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Crittenden County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 2.9 times as much land.

How many acres of land are in Crittenden County?

The land measurement converts to approximately 230,122 acres. Including water, total area is approximately 237,629 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

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