Logan County area

Logan County, Ohio covers 466.8 square miles: 458.5 square miles of land and 8.335 square miles of water. Its county seat is Bellefontaine. An estimated 46,302 people lived there in 2025.

Official Census measurements · GEOID 390912026 Gazetteer · retrieved September 27, 2026
Land area458.5 mi²
Water area8.335 mi²
Population (2025)46,302
People per mi²101

County outline

Generalized outline of Logan 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 Logan County is located

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

Area breakdown

Land accounts for 98.2% of Logan County’s measured area and water for 1.8%. Its combined area converts to 1,209.1 square kilometers or approximately 298,780 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land458.5081,187.53293,445.1
Water8.33521.5885,334.4
Total466.8431,209.118298,779.5

How Logan County compares

By original Census land area, Logan County ranks #38 of 88 in Ohio and #2232 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.052 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 Logan County

The Census Bureau estimates that 46,302 people lived in Logan County on July 1, 2025. That ranks #1,083 of 3,222 county equivalents nationally and #52 of 88 in Ohio. Since the April 1, 2020 estimates base of 46,148, the population has grown by 154 (+0.3%), compared with +0.9% for Ohio as a whole.

With 458.5 square miles of land, that is 101 people per square mile (39 per km²), placing Logan County #987 nationally for density and #54 in Ohio. The median county equivalent has 47 people per square mile; the Ohio median is 120. 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
Estimate46,11746,16646,06746,06446,07246,302
Change—+49−99−3+8+230

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 Logan County

13 incorporated places lie at least partly in Logan County. Together they are home to 23,274 people (50.3%); the other 23,028 (49.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Bellefontaine city, with 14,151 residents in the county. Among places with at least 1,000 residents in 2020, Lakeview village grew fastest since then (+4.1%).

Incorporated placePopulation 2025Since 2020Land mi²
Bellefontaine cityCounty seat14,151+0.2%10.2
West Liberty village1,756−0.5%1.217
Russells Point village1,3230%0.93
De Graff village1,256+0.3%1.003
Lakeview village1,232+4.1%0.708
Belle Center village802−0.5%0.698
West Mansfield village766+1.3%0.832
Quincy village548+1.3%1.121
Rushsylvania village497+1.4%0.783
Huntsville village412+1.7%0.303
Valley Hi village229+0.9%0.622
Zanesfield village192+1.6%0.106
Ridgeway villageAlso in 1 other county110+0.9%0.566

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

Metropolitan area

Logan County is a central county of the Bellefontaine, OH Micropolitan Statistical Area. Logan County is the area’s only county equivalent, so the micro area has the same 458.5 square miles of land. By combined land it ranks #454 of 542 micropolitan areas, and #256 by population. It belongs to the Columbus-Marion-Zanesville, OH Combined Statistical Area.

ZIP codes

19 ZIP Code Tabulation Areas have land in Logan County; 13 of them have most of their land inside the county, and the others mainly cover neighboring areas.

43060430674331043311433184331943324433314333343336433434334543347433484335743358433604533445895

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 Logan County

Logan County shares a land border with 5 county equivalents. It has more land than 4 of them. The largest neighbor is Hardin County (470.3 mi²) and the smallest is Auglaize County (401.4 mi²). Together with its neighbors, Logan County forms a block of 2,598.6 mi² of land, of which it holds 17.6%.

Map of Logan County and the 5 county equivalents that border it Champaign County, Ohio: 429 mi² landUnion County, Ohio: 431.7 mi² landHardin County, Ohio: 470.3 mi² landShelby County, Ohio: 407.7 mi² landAuglaize County, Ohio: 401.4 mi² land
Logan 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. LoganCompare
Hardin County470.3about the sameCompare
Union County431.71.1× smallerCompare
Champaign County4291.1× smallerCompare
Shelby County407.71.1× smallerCompare
Auglaize County401.41.1× smallerCompare

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

Logan 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 89 areas the size of Logan County.

Land area: Logan County and the closest-sized states
Logan County458.5 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 21.4 miles (34.5 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 Logan County?

Logan County has more land than 990 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Logan County458.5 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 Logan County at #2,297 nationally by total area, 65 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 1.8%, compared with a national county-equivalent median of 1.2% — 0.6 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 Logan County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2231Stewart County, Georgia458.8Compare
#2232Logan County, Ohio458.5This county
#2233Daviess County, Kentucky458.4Compare

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 40.387553, -83.766343. 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: 1,187,529,026 m²; AWATER: 21,588,084 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 Logan County?

Logan County, Ohio has 458.5 square miles (1,187.5 km²) of land and 8.335 square miles of water, for a total area of 466.8 square miles. It ranks #2232 of 3,222 U.S. county equivalents by land area.

Is Logan County the largest county in Ohio?

No. Logan County ranks #38 of 88 in Ohio by land area. The largest is Ashtabula County, with 702.4 square miles of land.

What counties border Logan County?

Logan County shares a land border with Champaign County, Union County, Hardin County, Shelby County, and Auglaize County.

What is the population of Logan County?

The Census Bureau estimates Logan County had 46,302 residents on July 1, 2025, ranking #1,083 of 3,222 county equivalents. That is 101 people per square mile of land.

What is the county seat of Logan County?

The county seat of Logan County is Bellefontaine.

What cities and towns are in Logan County?

Logan County has 13 incorporated places. The most populous five are Bellefontaine city, West Liberty village, Russells Point village, De Graff village, and Lakeview village; 23,028 residents live outside any incorporated place.

Is Logan County part of a metropolitan area?

Yes. It is a central county of the Bellefontaine, OH Micropolitan Statistical Area.

How many ZIP codes are in Logan County?

19 ZIP Code Tabulation Areas have land in Logan County, and 13 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Logan 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 Logan County?

The land measurement converts to approximately 293,445 acres. Including water, total area is approximately 298,780 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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