Owen County area

Owen County, Kentucky covers 354.2 square miles: 350.5 square miles of land and 3.759 square miles of water. Its county seat is Owenton. An estimated 11,601 people lived there in 2025.

Official Census measurements · GEOID 211872026 Gazetteer · retrieved September 27, 2026
Land area350.5 mi²
Water area3.759 mi²
Population (2025)11,601
People per mi²33

County outline

Generalized outline of Owen 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 Owen County is located

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

Area breakdown

Land accounts for 98.9% of Owen County’s measured area and water for 1.1%. Its combined area converts to 917.5 square kilometers or approximately 226,717 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land350.487907.757224,311.7
Water3.7599.7362,405.8
Total354.246917.493226,717.4

How Owen County compares

By original Census land area, Owen County ranks #44 of 120 in Kentucky and #2679 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.146 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 Owen County

The Census Bureau estimates that 11,601 people lived in Owen County on July 1, 2025. That ranks #2,381 of 3,222 county equivalents nationally and #93 of 120 in Kentucky. Since the April 1, 2020 estimates base of 11,268, the population has grown by 333 (+3%), compared with +2.2% for Kentucky as a whole.

With 350.5 square miles of land, that is 33 people per square mile (13 per km²), placing Owen County #1,917 nationally for density and #103 in Kentucky. The median county equivalent has 47 people per square mile; the Kentucky median is 59. Put another way, there are about 19 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate11,30311,30511,29411,31911,46511,601
Change—+2−11+25+146+136

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 Owen County

4 incorporated places lie at least partly in Owen County. Together they are home to 1,904 people (16.4%); the other 9,697 (83.6%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Owenton city, with 1,690 residents in the county. By land, Sparta city is the largest at 6.248 mi² across all its counties.

Incorporated placePopulation 2025Since 2020Land mi²
Owenton cityCounty seat1,690+0.6%1.904
Monterey city110+0.9%0.257
Gratz city660%0.348
Sparta cityAlso in 1 other county38+5.6%6.248

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

Metropolitan area

Owen 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

11 ZIP Code Tabulation Areas have land in Owen County; 4 of them have most of their land inside the county, and the others mainly cover neighboring areas.

4035540359403634037941010410354104641052410834108641098

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 Owen County

Owen County shares a land border with 6 county equivalents. It has more land than every one of them. The largest neighbor is Henry County (286.3 mi²) and the smallest is Gallatin County (98.3 mi²). Together with its neighbors, Owen County forms a block of 1,611.8 mi² of land, of which it holds 21.7%.

Map of Owen County and the 6 county equivalents that border it Grant County, Kentucky: 258 mi² landHenry County, Kentucky: 286.3 mi² landScott County, Kentucky: 282.2 mi² landCarroll County, Kentucky: 128.7 mi² landGallatin County, Kentucky: 98.3 mi² landFranklin County, Kentucky: 207.9 mi² land
Owen 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. OwenCompare
Henry County286.31.2× smallerCompare
Scott County282.21.2× smallerCompare
Grant County2581.4× smallerCompare
Franklin County207.91.7× smallerCompare
Carroll County128.72.7× smallerCompare
Gallatin County98.33.6× smallerCompare

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

Owen 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 113 areas the size of Owen County.

Land area: Owen County and the closest-sized states
Owen County350.5 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 18.7 miles (30.1 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 Owen County?

Owen County has more land than 543 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Owen County350.5 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 Owen County at #2,724 nationally by total area, 45 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 1.1%, compared with a national county-equivalent median of 1.2% — 0.1 percentage points lower. 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 Owen County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2678Elbert County, Georgia351.1Compare
#2679Owen County, Kentucky350.5This county
#2680Prince Edward County, Virginia349.9Compare

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 38.499416, -84.841574. 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: 907,758,017 m²; AWATER: 9,735,471 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 Owen County?

Owen County, Kentucky has 350.5 square miles (907.8 km²) of land and 3.759 square miles of water, for a total area of 354.2 square miles. It ranks #2679 of 3,222 U.S. county equivalents by land area.

Is Owen County the largest county in Kentucky?

No. Owen County ranks #44 of 120 in Kentucky by land area. The largest is Pike County, with 786.2 square miles of land.

What counties border Owen County?

Owen County shares a land border with Grant County, Henry County, Scott County, Carroll County, Gallatin County, and Franklin County.

What is the population of Owen County?

The Census Bureau estimates Owen County had 11,601 residents on July 1, 2025, ranking #2,381 of 3,222 county equivalents. That is 33 people per square mile of land.

What is the county seat of Owen County?

The county seat of Owen County is Owenton.

What cities and towns are in Owen County?

Owen County has 4 incorporated places. The most populous are Owenton city, Monterey city, Gratz city, and Sparta city; 9,697 residents live outside any incorporated place.

Is Owen County part of a metropolitan area?

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

How many ZIP codes are in Owen County?

11 ZIP Code Tabulation Areas have land in Owen County, and 4 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Owen 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 Owen County?

The land measurement converts to approximately 224,312 acres. Including water, total area is approximately 226,717 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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