Lawrence County area

Lawrence County, Ohio covers 457.3 square miles: 453.4 square miles of land and 3.871 square miles of water. Its county seat is Ironton. An estimated 55,710 people lived there in 2025.

Official Census measurements · GEOID 390872026 Gazetteer · retrieved September 27, 2026
Land area453.4 mi²
Water area3.871 mi²
Population (2025)55,710
People per mi²123

County outline

Generalized outline of Lawrence County, Ohio
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 99.2% of Lawrence County’s measured area and water for 0.8%. Its combined area converts to 1,184.3 square kilometers or approximately 292,650 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land453.3941,174.285290,172.2
Water3.87110.0262,477.4
Total457.2651,184.311292,649.6

How Lawrence County compares

By original Census land area, Lawrence County ranks #41 of 88 in Ohio and #2256 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.04 times the Ohio county-equivalent median of 436 square miles. It accounts for 1.1% of the combined county land area in the state.

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

Population and density of Lawrence County

The Census Bureau estimates that 55,710 people lived in Lawrence County on July 1, 2025. That ranks #953 of 3,222 county equivalents nationally and #46 of 88 in Ohio. Since the April 1, 2020 estimates base of 58,243, the population has declined by 2,533 (−4.3%), compared with +0.9% for Ohio as a whole.

With 453.4 square miles of land, that is 123 people per square mile (47 per km²), placing Lawrence County #862 nationally for density and #42 in Ohio. The median county equivalent has 47 people per square mile; the Ohio median is 120. Put another way, there are about 5.2 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate58,14657,37556,52656,19655,95755,710
Change—−771−849−330−239−247

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

7 incorporated places lie at least partly in Lawrence County. Together they are home to 17,270 people (31%); the other 38,440 (69%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Ironton city, with 10,148 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Ironton cityCounty seat10,148−4.2%4.469
South Point village3,640−4.8%2.945
Coal Grove village1,808−4.3%1.906
Chesapeake village719−5%0.474
Proctorville village494−5.4%0.238
Athalia village263−4%0.686
Hanging Rock village198−4.8%0.556

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 a central 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 15.6% of the land and 15.2% 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 County55,710453.4
Boyd CountyKentucky47,751159.9
Wayne CountyWest Virginia37,309506
Greenup CountyKentucky35,213344.5
Carter CountyKentucky26,149409.5
Lawrence CountyKentucky15,765415.6

ZIP codes

14 ZIP Code Tabulation Areas have land in Lawrence County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.

4561945623456294563845645456564565845659456694567845680456824568845696

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 4 in West Virginia and Kentucky. It has more land than 4 of them. The largest neighbor is Scioto County (610.2 mi²) and the smallest is Boyd County (159.9 mi²). Together with its neighbors, Lawrence County forms a block of 3,241.7 mi² of land, of which it holds 14%.

Map of Lawrence County and the 7 county equivalents that border it Gallia County, Ohio: 466.5 mi² landScioto County, Ohio: 610.2 mi² landCabell County, West Virginia: 281 mi² landGreenup County, Kentucky: 344.5 mi² landBoyd County, Kentucky: 159.9 mi² landWayne County, West Virginia: 506 mi² landJackson County, Ohio: 420.3 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
Scioto County610.21.3× largerCompare
Wayne CountyWest Virginia5061.1× largerCompare
Gallia County466.5about the sameCompare
Jackson County420.31.1× smallerCompare
Greenup CountyKentucky344.51.3× smallerCompare
Cabell CountyWest Virginia2811.6× smallerCompare
Boyd CountyKentucky159.92.8× 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 2.3 times as much. Ohio’s county land could hold about 90 areas the size of Lawrence County.

Land area: Lawrence County and the closest-sized states
Lawrence County453.4 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 21.3 miles (34.3 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 966 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Lawrence County453.4 mi²
Ohio median436 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 #2,320 nationally by total area, 64 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 0.8%, compared with a national county-equivalent median of 1.2% — 0.3 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
#2255Mercer County, Missouri453.8Compare
#2256Lawrence County, Ohio453.4This county
#2257Berrien County, Georgia453.4Compare

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 38.603836, -82.517070. 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: 1,174,285,732 m²; AWATER: 10,026,357 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, Ohio has 453.4 square miles (1,174.3 km²) of land and 3.871 square miles of water, for a total area of 457.3 square miles. It ranks #2256 of 3,222 U.S. county equivalents by land area.

Is Lawrence County the largest county in Ohio?

No. Lawrence County ranks #41 of 88 in Ohio by land area. The largest is Ashtabula County, with 702.4 square miles of land.

What counties border Lawrence County?

Lawrence County shares a land border with Gallia County, Scioto County, Cabell County, West Virginia, Greenup County, Kentucky, Boyd County, Kentucky, Wayne County, West Virginia, and Jackson County.

What is the population of Lawrence County?

The Census Bureau estimates Lawrence County had 55,710 residents on July 1, 2025, ranking #953 of 3,222 county equivalents. That is 123 people per square mile of land.

What is the county seat of Lawrence County?

The county seat of Lawrence County is Ironton.

What cities and towns are in Lawrence County?

Lawrence County has 7 incorporated places. The most populous five are Ironton city, South Point village, Coal Grove village, Chesapeake village, and Proctorville village; 38,440 residents live outside any incorporated place.

Is Lawrence County part of a metropolitan area?

Yes. It is a central 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?

14 ZIP Code Tabulation Areas have land in Lawrence County, and 9 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 2.3 times as much land.

How many acres of land are in Lawrence County?

The land measurement converts to approximately 290,172 acres. Including water, total area is approximately 292,650 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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