Henderson County area

Henderson County, Kentucky covers 465.6 square miles: 436.4 square miles of land and 29.2 square miles of water. Its county seat is Henderson. An estimated 44,255 people lived there in 2025.

Official Census measurements · GEOID 211012026 Gazetteer · retrieved September 27, 2026
Land area436.4 mi²
Water area29.2 mi²
Population (2025)44,255
People per mi²101

County outline

Generalized outline of Henderson 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 Henderson County is located

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

Area breakdown

Land accounts for 93.7% of Henderson County’s measured area and water for 6.3%. Its combined area converts to 1,205.8 square kilometers or approximately 297,953 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land436.3611,130.17279,271
Water29.19175.60418,682.2
Total465.5521,205.774297,953.3

How Henderson County compares

By original Census land area, Henderson County ranks #24 of 120 in Kentucky and #2322 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.426 times the Kentucky county-equivalent median of 306 square miles. It accounts for 1.1% of the combined county land area in the state.

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

Population and density of Henderson County

The Census Bureau estimates that 44,255 people lived in Henderson County on July 1, 2025. That ranks #1,133 of 3,222 county equivalents nationally and #25 of 120 in Kentucky. Since the April 1, 2020 estimates base of 44,794, the population has declined by 539 (−1.2%), compared with +2.2% for Kentucky as a whole.

With 436.4 square miles of land, that is 101 people per square mile (39 per km²), placing Henderson County #980 nationally for density and #31 in Kentucky. The median county equivalent has 47 people per square mile; the Kentucky median is 59. Put another way, there are about 6.3 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate44,67744,41944,05044,22444,34844,255
Change—−258−369+174+124−93

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 Henderson County

3 incorporated places lie at least partly in Henderson County. Together they are home to 28,990 people (65.5%); the other 15,265 (34.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Henderson city, with 27,822 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Henderson cityCounty seat27,822−1.3%16.9
Corydon city725−1%0.543
Robards city443−1.3%3.026

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Henderson County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Henderson County is a central county of the Henderson, KY Micropolitan Statistical Area. Its 2 county equivalents have 57,184 residents on 768.4 square miles of land; Henderson County accounts for 56.8% of the land and 77.4% of the residents. By combined land it ranks #278 of 542 micropolitan areas, and #179 by population. It belongs to the Evansville-Henderson, IN-KY Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Henderson County44,255436.4
Webster County12,929332

ZIP codes

8 ZIP Code Tabulation Areas have land in Henderson County; 5 of them have most of their land inside the county, and the others mainly cover neighboring areas.

4230142406424204245142452424584246142462

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 Henderson County

Henderson County shares a land border with 7 county equivalents, including 3 in Indiana. It has more land than 6 of them. The largest neighbor is Daviess County (458.4 mi²) and the smallest is Vanderburgh County (233.4 mi²). Together with its neighbors, Henderson County forms a block of 2,849.6 mi² of land, of which it holds 15.3%.

Map of Henderson County and the 7 county equivalents that border it Vanderburgh County, Indiana: 233.4 mi² landUnion County, Kentucky: 342.9 mi² landDaviess County, Kentucky: 458.4 mi² landWebster County, Kentucky: 332 mi² landPosey County, Indiana: 409.4 mi² landWarrick County, Indiana: 384.6 mi² landMcLean County, Kentucky: 252.5 mi² land
Henderson 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. HendersonCompare
Daviess County458.41.1× largerCompare
Posey CountyIndiana409.41.1× smallerCompare
Warrick CountyIndiana384.61.1× smallerCompare
Union County342.91.3× smallerCompare
Webster County3321.3× smallerCompare
McLean County252.51.7× smallerCompare
Vanderburgh CountyIndiana233.41.9× smallerCompare

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

Henderson County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.4 times as much. Kentucky’s county land could hold about 90 areas the size of Henderson County.

Land area: Henderson County and the closest-sized states
Henderson County436.4 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 20.9 miles (33.6 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 Henderson County?

Henderson County has more land than 900 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Henderson County436.4 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 Henderson County at #2,302 nationally by total area, 20 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 6.3%, compared with a national county-equivalent median of 1.2% — 5.1 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 Henderson County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2321Scotland County, Missouri436.5Compare
#2322Henderson County, Kentucky436.4This county
#2323Cocke County, Tennessee436.1Compare

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 37.792542, -87.572577. 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: 1,130,170,431 m²; AWATER: 75,605,391 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 Henderson County?

Henderson County, Kentucky has 436.4 square miles (1,130.2 km²) of land and 29.2 square miles of water, for a total area of 465.6 square miles. It ranks #2322 of 3,222 U.S. county equivalents by land area.

Is Henderson County the largest county in Kentucky?

No. Henderson County ranks #24 of 120 in Kentucky by land area. The largest is Pike County, with 786.2 square miles of land.

What counties border Henderson County?

Henderson County shares a land border with Vanderburgh County, Indiana, Union County, Daviess County, Webster County, Posey County, Indiana, Warrick County, Indiana, and McLean County.

What is the population of Henderson County?

The Census Bureau estimates Henderson County had 44,255 residents on July 1, 2025, ranking #1,133 of 3,222 county equivalents. That is 101 people per square mile of land.

What is the county seat of Henderson County?

The county seat of Henderson County is Henderson.

What cities and towns are in Henderson County?

Henderson County has 3 incorporated places. The most populous are Henderson city, Corydon city, and Robards city; 15,265 residents live outside any incorporated place.

Is Henderson County part of a metropolitan area?

Yes. It is a central county of the Henderson, KY Micropolitan Statistical Area, which has 2 county equivalents and 57,184 residents.

How many ZIP codes are in Henderson County?

8 ZIP Code Tabulation Areas have land in Henderson County, and 5 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has less land than every state. Rhode Island, the smallest, has 2.4 times as much land.

How many acres of land are in Henderson County?

The land measurement converts to approximately 279,271 acres. Including water, total area is approximately 297,953 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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