Lawrence County area

Lawrence County, Kentucky covers 420.1 square miles: 415.6 square miles of land and 4.47 square miles of water. Its county seat is Louisa. An estimated 15,765 people lived there in 2025.

Official Census measurements · GEOID 211272026 Gazetteer · retrieved September 27, 2026
Land area415.6 mi²
Water area4.47 mi²
Population (2025)15,765
People per mi²38

County outline

Generalized outline of Lawrence 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 Lawrence County is located

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

Area breakdown

Land accounts for 98.9% of Lawrence County’s measured area and water for 1.1%. Its combined area converts to 1,088 square kilometers or approximately 268,844 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land415.5981,076.394265,982.7
Water4.4711.5772,860.8
Total420.0681,087.971268,843.5

How Lawrence County compares

By original Census land area, Lawrence County ranks #29 of 120 in Kentucky and #2433 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.358 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 Lawrence County

The Census Bureau estimates that 15,765 people lived in Lawrence County on July 1, 2025. That ranks #2,122 of 3,222 county equivalents nationally and #73 of 120 in Kentucky. Since the April 1, 2020 estimates base of 16,288, the population has declined by 523 (−3.2%), compared with +2.2% for Kentucky as a whole.

With 415.6 square miles of land, that is 38 people per square mile (15 per km²), placing Lawrence County #1,795 nationally for density and #90 in Kentucky. The median county equivalent has 47 people per square mile; the Kentucky median is 59. Put another way, there are about 17 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate16,30016,26116,05215,98015,82515,765
Change—−39−209−72−155−60

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 Lawrence County

2 incorporated places lie at least partly in Lawrence County. Together they are home to 2,584 people (16.4%); the other 13,181 (83.6%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Louisa city, with 2,520 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Louisa cityCounty seat2,520−5.4%2.243
Blaine city64−5.9%0.283

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

Metropolitan area

Lawrence County is an outlying county of the Huntington-Ashland, WV-KY-OH Metropolitan Statistical Area. Its 8 county equivalents have 365,965 residents on 2,915.5 square miles of land; Lawrence County accounts for 14.3% of the land and 4.3% of the residents. By combined land it ranks #102 of 393 metropolitan areas, and #156 by population. It belongs to the Charleston-Huntington-Ashland, WV-OH-KY Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Cabell CountyWest Virginia91,183281
Putnam CountyWest Virginia56,885345.7
Lawrence CountyOhio55,710453.4
Boyd County47,751159.9
Wayne CountyWest Virginia37,309506
Greenup County35,213344.5
Carter County26,149409.5
Lawrence County15,765415.6

ZIP codes

10 ZIP Code Tabulation Areas have land in Lawrence County; 7 of them have most of their land inside the county, and the others mainly cover neighboring areas.

41124411294113241159411804120141230412324125441264

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 Lawrence County

Lawrence County shares a land border with 7 county equivalents, including 1 in West Virginia. It has more land than 6 of them. The largest neighbor is Wayne County (506 mi²) and the smallest is Boyd County (159.9 mi²). Together with its neighbors, Lawrence County forms a block of 2,598 mi² of land, of which it holds 16%.

Map of Lawrence County and the 7 county equivalents that border it Wayne County, West Virginia: 506 mi² landJohnson County, Kentucky: 262 mi² landElliott County, Kentucky: 234.3 mi² landBoyd County, Kentucky: 159.9 mi² landCarter County, Kentucky: 409.5 mi² landMartin County, Kentucky: 229.6 mi² landMorgan County, Kentucky: 381.1 mi² land
Lawrence 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. LawrenceCompare
Wayne CountyWest Virginia5061.2× largerCompare
Carter County409.5about the sameCompare
Morgan County381.11.1× smallerCompare
Johnson County2621.6× smallerCompare
Elliott County234.31.8× smallerCompare
Martin County229.61.8× smallerCompare
Boyd County159.92.6× smallerCompare

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

Lawrence County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.5 times as much. Kentucky’s county land could hold about 95 areas the size of Lawrence County.

Land area: Lawrence County and the closest-sized states
Lawrence County415.6 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 20.4 miles (32.8 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 Lawrence County?

Lawrence County has more land than 789 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Lawrence County415.6 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 Lawrence County at #2,491 nationally by total area, 58 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 Lawrence County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2432Union County, Mississippi415.6Compare
#2433Lawrence County, Kentucky415.6This county
#2434Washington County, Oklahoma415.5Compare

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 38.072387, -82.733155. 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: 1,076,393,642 m²; AWATER: 11,576,697 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 Lawrence County?

Lawrence County, Kentucky has 415.6 square miles (1,076.4 km²) of land and 4.47 square miles of water, for a total area of 420.1 square miles. It ranks #2433 of 3,222 U.S. county equivalents by land area.

Is Lawrence County the largest county in Kentucky?

No. Lawrence County ranks #29 of 120 in Kentucky by land area. The largest is Pike County, with 786.2 square miles of land.

What counties border Lawrence County?

Lawrence County shares a land border with Wayne County, West Virginia, Johnson County, Elliott County, Boyd County, Carter County, Martin County, and Morgan County.

What is the population of Lawrence County?

The Census Bureau estimates Lawrence County had 15,765 residents on July 1, 2025, ranking #2,122 of 3,222 county equivalents. That is 38 people per square mile of land.

What is the county seat of Lawrence County?

The county seat of Lawrence County is Louisa.

What cities and towns are in Lawrence County?

Lawrence County has 2 incorporated places. The most populous are Louisa city and Blaine city; 13,181 residents live outside any incorporated place.

Is Lawrence County part of a metropolitan area?

Yes. It is an outlying county of the Huntington-Ashland, WV-KY-OH Metropolitan Statistical Area, which has 8 county equivalents and 365,965 residents.

How many ZIP codes are in Lawrence County?

10 ZIP Code Tabulation Areas have land in Lawrence County, and 7 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has less land than every state. Rhode Island, the smallest, has 2.5 times as much land.

How many acres of land are in Lawrence County?

The land measurement converts to approximately 265,983 acres. Including water, total area is approximately 268,844 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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