County GIS · State lines · October 20, 2026
Ohio–West Virginia Border Counties and Their Parcel Maps
All 21 counties on the Ohio–West Virginia line, with seats, 2023 populations and a link to each official parcel map, plus what changes at the state line.
Looking for the counties on the Ohio–West Virginia border and their parcel maps? According to the Census Bureau's county adjacency file, 9 Ohio counties touch 12 West Virginia counties along the line. Each one keeps its own property records and its own parcel viewer, so land near the line often means checking two counties in two states.
Below you will find every county on both sides of the line, who borders whom, and what changes when you cross from one records office to the other.
Ohio–West Virginia border at a glance
- Counties on the line: 21 (9 in Ohio, 12 in West Virginia)
- With a verified public parcel viewer in our directory: 21 of 21
- Residents, 2023 estimates: about 470,433 on the Ohio side and 414,532 on the West Virginia side
- Most populous on each side: Columbiana County, OH (100,182) and Cabell County, WV (92,082)
- Largest by land area: Washington County, OH (632 sq mi) and Wayne County, WV (506 sq mi)
Ohio counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Athens County | Athens | 504 | 62,706 | county web map |
| Belmont County | St. Clairsville | 532 | 64,918 | county web map |
| Columbiana County | Lisbon | 532 | 100,182 | county web map |
| Gallia County | Gallipolis | 467 | 28,986 | county web map |
| Jefferson County | Steubenville | 408 | 64,026 | county web map |
| Lawrence County | Ironton | 453 | 56,118 | county web map |
| Meigs County | Pomeroy | 430 | 21,767 | ArcGIS Experience Builder |
| Monroe County | Woodsfield | 456 | 13,153 | Ohio Statewide Parcels layer in ArcGIS Map Viewer |
| Washington County | Marietta | 632 | 58,577 | Ohio Statewide Parcels layer in ArcGIS Map Viewer |
West Virginia counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Brooke County | Wellsburg | 89 | 21,373 | ArcGIS Web AppBuilder |
| Cabell County | Huntington | 281 | 92,082 | ArcGIS Web AppBuilder |
| Hancock County | New Cumberland | 83 | 28,145 | ArcGIS Experience Builder |
| Jackson County | Ripley | 464 | 27,593 | West Virginia Property Viewer |
| Marshall County | Moundsville | 305 | 29,405 | ArcGIS Experience Builder |
| Mason County | Point Pleasant | 431 | 24,765 | ArcGIS Web AppBuilder |
| Ohio County | Wheeling | 106 | 41,194 | ArcGIS Experience Builder |
| Pleasants County | St. Marys | 130 | 7,428 | West Virginia Property Viewer |
| Tyler County | Middlebourne | 256 | 7,919 | ArcGIS Web AppBuilder |
| Wayne County | Wayne | 506 | 37,686 | ArcGIS Web AppBuilder |
| Wetzel County | New Martinsville | 358 | 13,890 | ArcGIS Web AppBuilder |
| Wood County | Parkersburg | 366 | 83,052 | ArcGIS Web AppBuilder |
Which counties face each other
The Census adjacency file pairs counties that share a boundary. Use it to find the county across the line from the one you know:
- Athens County, OH borders Wood County, WV
- Belmont County, OH borders Marshall County, WV, Ohio County, WV
- Columbiana County, OH borders Hancock County, WV
- Gallia County, OH borders Cabell County, WV, Mason County, WV
- Jefferson County, OH borders Brooke County, WV, Hancock County, WV, Ohio County, WV
- Lawrence County, OH borders Cabell County, WV, Wayne County, WV
- Meigs County, OH borders Jackson County, WV, Mason County, WV, Wood County, WV
- Monroe County, OH borders Marshall County, WV, Tyler County, WV, Wetzel County, WV
- Washington County, OH borders Pleasants County, WV, Tyler County, WV, Wood County, WV
What changes when you cross the line
- Different viewers. On the Ohio side the official maps run on: county web map (6); Ohio Statewide Parcels layer in ArcGIS Map Viewer (2); ArcGIS Experience Builder (1). On the West Virginia side: ArcGIS Web AppBuilder (7); ArcGIS Experience Builder (3); West Virginia Property Viewer (2). Search boxes, parcel ID formats and the details shown in pop-ups will differ.
- Different records offices. Deeds, plats and tax bills are kept by the county where the parcel sits.
- Different rules. Zoning, septic permits and property tax are set locally and by each state, so check with the county on the side where you plan to build or buy.
Researching a tract that crosses the line
- Find the parcel in both counties' viewers. Each side will show only its own piece, with its own parcel number.
- Pull the recorded deed from each county's register or recorder, since each county records only the land inside its own boundary.
- Expect two tax bills, one from each county, and check each state's rules for homestead or farm exemptions.
- For a sale, a fence or a building permit, hire a licensed surveyor familiar with the line; tax-map lines are drawings, not surveys.
A quick way to check which side a spot is on
Tap the spot on the Platbookmapper Land Map. Its land report names the county and links straight to that county's parcel viewer, plus FEMA flood, USGS elevation, USDA soil and wetland results.
Related guides
More: Ohio counties · West Virginia counties
Sources
- U.S. Census Bureau county adjacency file, used for which counties share the line.
- U.S. Census Bureau Gazetteer files, 2020 county land area.
- U.S. Census Bureau, Population Estimates Program, county totals, Vintage 2023 (July 1, 2023 estimates)
- Platbookmapper county GIS directory (live data file behind our county pages, pulled October 20, 2026) for each county's official parcel viewer.
- County seats: Wikidata (county seat property), cross-checked against Census place names.