Logan County area

Logan County, Kentucky covers 557 square miles: 552.2 square miles of land and 4.809 square miles of water. Its county seat is Russellville. An estimated 28,669 people lived there in 2025.

Official Census measurements · GEOID 211412026 Gazetteer · retrieved September 27, 2026
Land area552.2 mi²
Water area4.809 mi²
Population (2025)28,669
People per mi²52

County outline

Generalized outline of Logan 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 Logan County is located

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

Area breakdown

Land accounts for 99.1% of Logan County’s measured area and water for 0.9%. Its combined area converts to 1,442.7 square kilometers or approximately 356,500 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land552.2221,430.248353,422.1
Water4.80912.4553,077.8
Total557.0311,442.704356,499.8

How Logan County compares

By original Census land area, Logan County ranks #7 of 120 in Kentucky and #1890 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.805 times the Kentucky county-equivalent median of 306 square miles. It accounts for 1.4% of the combined county land area in the state.

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

Population and density of Logan County

The Census Bureau estimates that 28,669 people lived in Logan County on July 1, 2025. That ranks #1,529 of 3,222 county equivalents nationally and #38 of 120 in Kentucky. Since the April 1, 2020 estimates base of 27,429, the population has grown by 1,240 (+4.5%), compared with +2.2% for Kentucky as a whole.

With 552.2 square miles of land, that is 52 people per square mile (20 per km²), placing Logan County #1,511 nationally for density and #69 in Kentucky. The median county equivalent has 47 people per square mile; the Kentucky median is 59. Put another way, there are about 12 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate27,51527,81127,86628,27228,44928,669
Change—+296+55+406+177+220

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

4 incorporated places lie at least partly in Logan County. Together they are home to 10,857 people (37.9%); the other 17,812 (62.1%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Russellville city, with 7,454 residents in the county. Among places with at least 1,000 residents in 2020, Auburn city grew fastest since then (+10.3%).

Incorporated placePopulation 2025Since 2020Land mi²
Russellville cityCounty seat7,454+4%11
Auburn city1,742+10.3%1.884
Adairville city884+5.2%1.175
Lewisburg city777+4%1.162

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 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

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

42202422044220642256422654227442276

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 6 county equivalents, including 1 in Tennessee. It has more land than every one of them. The largest neighbor is Warren County (541.7 mi²) and the smallest is Simpson County (234.2 mi²). Together with its neighbors, Logan County forms a block of 3,072.4 mi² of land, of which it holds 18%.

Map of Logan County and the 6 county equivalents that border it Todd County, Kentucky: 374.5 mi² landSimpson County, Kentucky: 234.2 mi² landRobertson County, Tennessee: 476.3 mi² landButler County, Kentucky: 426.1 mi² landWarren County, Kentucky: 541.7 mi² landMuhlenberg County, Kentucky: 467.3 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
Warren County541.7about the sameCompare
Robertson CountyTennessee476.31.2× smallerCompare
Muhlenberg County467.31.2× smallerCompare
Butler County426.11.3× smallerCompare
Todd County374.51.5× smallerCompare
Simpson County234.22.4× 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 1.9 times as much. Kentucky’s county land could hold about 72 areas the size of Logan County.

Land area: Logan County and the closest-sized states
Logan County552.2 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 23.5 miles (37.8 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 Logan County?

Logan County has more land than 1,332 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Logan County552.2 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 Logan County at #1,982 nationally by total area, 92 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 0.9%, 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 Logan County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1889Davidson County, North Carolina553Compare
#1890Logan County, Kentucky552.2This county
#1891Houston County, Minnesota552.1Compare

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 36.859607, -86.881288. 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: 1,430,248,787 m²; AWATER: 12,454,413 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, Kentucky has 552.2 square miles (1,430.2 km²) of land and 4.809 square miles of water, for a total area of 557 square miles. It ranks #1890 of 3,222 U.S. county equivalents by land area.

Is Logan County the largest county in Kentucky?

No. Logan County ranks #7 of 120 in Kentucky by land area. The largest is Pike County, with 786.2 square miles of land.

What counties border Logan County?

Logan County shares a land border with Todd County, Simpson County, Robertson County, Tennessee, Butler County, Warren County, and Muhlenberg County.

What is the population of Logan County?

The Census Bureau estimates Logan County had 28,669 residents on July 1, 2025, ranking #1,529 of 3,222 county equivalents. That is 52 people per square mile of land.

What is the county seat of Logan County?

The county seat of Logan County is Russellville.

What cities and towns are in Logan County?

Logan County has 4 incorporated places. The most populous are Russellville city, Auburn city, Adairville city, and Lewisburg city; 17,812 residents live outside any incorporated place.

Is Logan County part of a metropolitan area?

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

How many ZIP codes are in Logan County?

7 ZIP Code Tabulation Areas have land in Logan 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 Logan County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.9 times as much land.

How many acres of land are in Logan County?

The land measurement converts to approximately 353,422 acres. Including water, total area is approximately 356,500 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

Download the complete CSV or JSON dataset