The largest county in West Virginia

There are two right answers. By land area it is Randolph County; by population it is Kanawha County. Which one you want depends on what you meant by largest.

Largest by land area

Randolph County

1,040 sq mi

4.3% of West Virginia's land

Largest by population

Kanawha County

172,381 people

9.8% of West Virginia's population

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025. Retrieved 30 August 2026.

By land area

The ten largest counties of West Virginia by land area. Land area excludes inland and coastal water.
RankNameLand areaPopulation
1Randolph County1,040 sq mi26,882
2Greenbrier County1,020 sq mi31,578
3Pocahontas County940.2 sq mi7,602
4Kanawha County901.7 sq mi172,381
5Pendleton County696.1 sq mi5,826
6Fayette County662 sq mi38,165
7Preston County648.8 sq mi34,004
8Nicholas County646.8 sq mi23,848
9Hampshire County640.4 sq mi24,105
10Raleigh County605 sq mi71,775

By population

The ten most populous counties of West Virginia, from the Census Bureau's Vintage 2025 estimates.
RankNamePopulationDensity
1Kanawha County172,381191 per sq mi
2Berkeley County139,522434 per sq mi
3Monongalia County107,991300 per sq mi
4Cabell County91,183324 per sq mi
5Wood County82,385225 per sq mi
6Raleigh County71,775119 per sq mi
7Harrison County64,221154 per sq mi
8Jefferson County63,102302 per sq mi
9Mercer County57,503137 per sq mi
10Putnam County56,885165 per sq mi

And the smallest

Smallest by land area

Hancock County

82.6 sq mi

Least populous

Wirt County

4,879 people

More on West Virginia

Rebuilt from source data 30 August 2026. How these figures are produced.