County outline
Where Nicholas County is located
Area breakdown
Land accounts for 98.9% of Nicholas County’s measured area and water for 1.1%. Its combined area converts to 1,694.7 square kilometers or approximately 418,767 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 646.844 | 1,675.318 | 413,980.2 |
| Water | 7.479 | 19.371 | 4,786.6 |
| Total | 654.323 | 1,694.689 | 418,766.7 |
How Nicholas County compares
By original Census land area, Nicholas County ranks #8 of 55 in West Virginia and #1464 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.544 times the West Virginia county-equivalent median of 419 square miles. It accounts for 2.7% of the combined county land area in the state.
See the complete West Virginia ranking · What counts as a county equivalent?
Population and density of Nicholas County
The Census Bureau estimates that 23,848 people lived in Nicholas County on July 1, 2025. That ranks #1,703 of 3,222 county equivalents nationally and #25 of 55 in West Virginia. Since the April 1, 2020 estimates base of 24,604, the population has declined by 756 (−3.1%), compared with −1.5% for West Virginia as a whole.
With 646.8 square miles of land, that is 37 people per square mile (14 per km²), placing Nicholas County #1,831 nationally for density and #35 in West Virginia. The median county equivalent has 47 people per square mile; the West Virginia median is 45. Put another way, there are about 17 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 24,559 | 24,439 | 24,257 | 24,104 | 23,955 | 23,848 |
| Change | — | −120 | −182 | −153 | −149 | −107 |
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 Nicholas County
2 incorporated places lie at least partly in Nicholas County. Together they are home to 4,895 people (20.5%); the other 18,953 (79.5%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Summersville city, with 3,297 residents in the county.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Summersville cityCounty seat | 3,297 | −3.9% | 4.487 |
| Richwood city | 1,598 | −4% | 1.61 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Nicholas County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Nicholas 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
27 ZIP Code Tabulation Areas have land in Nicholas County; 16 of them have most of their land inside the county, and the others mainly cover neighboring areas.
250432505925063251112512525981262022620326205262082626126610266172665126656266602666226667266712667626678266792668026681266842669026691
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 Nicholas County
Nicholas County shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is Greenbrier County (1,019.8 mi²) and the smallest is Clay County (342 mi²). Together with its neighbors, Nicholas County forms a block of 3,734.8 mi² of land, of which it holds 17.3%.
| Bordering county equivalent | Land mi² | Size vs. Nicholas | Compare |
|---|---|---|---|
| Greenbrier County | 1,019.8 | 1.6× larger | Compare |
| Fayette County | 662 | about the same | Compare |
| Webster County | 553.5 | 1.2× smaller | Compare |
| Braxton County | 510.7 | 1.3× smaller | Compare |
| Clay County | 342 | 1.9× smaller | Compare |
How big is Nicholas County compared with U.S. states?
Nicholas County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.6 times as much. West Virginia’s county land could hold about 37 areas the size of Nicholas County.
Another way to picture it: the same land area would fill a square about 25.4 miles (40.9 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 Nicholas County?
Nicholas County has more land than 1,758 of the other 3,221 county equivalents in the dataset.
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 Nicholas County at #1,562 nationally by total area, 98 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%. The two percentages are within 0.1 percentage points of each other. 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 Nicholas County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #1463 | Greene County, Alabama | 647 | Compare |
| #1464 | Nicholas County, West Virginia | 646.8 | This county |
| #1465 | Austin County, Texas | 646.5 | Compare |
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 38.291432, -80.797515. 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: 1,675,317,970 m²; AWATER: 19,369,539 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Nicholas County?
Nicholas County, West Virginia has 646.8 square miles (1,675.3 km²) of land and 7.479 square miles of water, for a total area of 654.3 square miles. It ranks #1464 of 3,222 U.S. county equivalents by land area.
Is Nicholas County the largest county in West Virginia?
No. Nicholas County ranks #8 of 55 in West Virginia by land area. The largest is Randolph County, with 1,039.7 square miles of land.
What counties border Nicholas County?
Nicholas County shares a land border with Clay County, Greenbrier County, Fayette County, Webster County, and Braxton County.
What is the population of Nicholas County?
The Census Bureau estimates Nicholas County had 23,848 residents on July 1, 2025, ranking #1,703 of 3,222 county equivalents. That is 37 people per square mile of land.
What is the county seat of Nicholas County?
The county seat of Nicholas County is Summersville.
What cities and towns are in Nicholas County?
Nicholas County has 2 incorporated places. The most populous are Summersville city and Richwood city; 18,953 residents live outside any incorporated place.
Is Nicholas County part of a metropolitan area?
No. Nicholas County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Nicholas County?
27 ZIP Code Tabulation Areas have land in Nicholas County, and 16 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Nicholas County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 1.6 times as much land.
How many acres of land are in Nicholas County?
The land measurement converts to approximately 413,980 acres. Including water, total area is approximately 418,767 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.