County GIS · State lines · October 20, 2026
Arkansas–Missouri Border Counties: Parcel Maps on Both Sides
All 23 counties on the Arkansas–Missouri 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 Arkansas–Missouri border and their parcel maps? According to the Census Bureau's county adjacency file, 12 Arkansas counties touch 11 Missouri 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.
A farm, hunting tract or lake lot can sit in one state while the road, the neighbors or the rest of the property are in the other. This page lists every county that touches the line on either side, with links to each official parcel map.
Arkansas–Missouri border at a glance
- Counties on the line: 23 (12 in Arkansas, 11 in Missouri)
- With a verified public parcel viewer in our directory: 21 of 23
- Residents, 2023 estimates: about 701,642 on the Arkansas side and 301,425 on the Missouri side
- Most populous on each side: Benton County, AR (311,013) and Taney County, MO (56,775)
- Largest by land area: Mississippi County, AR (902 sq mi) and Howell County, MO (927 sq mi)
Arkansas counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Baxter County | Mountain Home | 554 | 42,875 | ArcGIS Map Viewer |
| Benton County | Bentonville | 848 | 311,013 | county web map |
| Boone County | Harrison | 590 | 38,530 | ArcGIS Map Viewer |
| Carroll County | Berryville, Eureka Springs | 630 | 28,814 | ArcGIS Map Viewer |
| Clay County | Corning, Piggott | 639 | 14,201 | ArcGIS Map Viewer |
| Craighead County | Jonesboro, Lake City | 707 | 113,993 | county web map |
| Fulton County | Salem | 618 | 12,421 | ArcGIS Map Viewer |
| Greene County | Paragould | 577 | 46,743 | ArcGIS Map Viewer |
| Marion County | Yellville | 597 | 17,514 | ArcGIS Map Viewer |
| Mississippi County | Blytheville, Osceola | 902 | 38,663 | ArcGIS Map Viewer |
| Randolph County | Pocahontas | 652 | 18,907 | ArcGIS Map Viewer |
| Sharp County | Ash Flat | 605 | 17,968 | ArcGIS Map Viewer |
Missouri counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Barry County | Cassville | 778 | 35,265 | BreezeMaps |
| Butler County | Poplar Bluff | 695 | 41,948 | IntegrityGIS |
| Dunklin County | Kennett | 542 | 27,032 | IntegrityGIS |
| Howell County | West Plains | 927 | 40,735 | CAMAvision Maps |
| McDonald County | Pineville | 539 | 23,903 | IntegrityGIS |
| Oregon County | Alton | 790 | 8,720 | IntegrityGIS |
| Ozark County | Gainesville | 745 | 8,970 | no verified public viewer listed yet |
| Pemiscot County | Caruthersville | 493 | 14,613 | no verified public viewer listed yet |
| Ripley County | Doniphan | 630 | 10,806 | IntegrityGIS |
| Stone County | Galena | 464 | 32,658 | IntegrityGIS |
| Taney County | Forsyth | 632 | 56,775 | Beacon (Schneider Geospatial) |
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:
- Baxter County, AR borders Ozark County, MO
- Benton County, AR borders Barry County, MO, McDonald County, MO
- Boone County, AR borders Taney County, MO
- Carroll County, AR borders Barry County, MO, Stone County, MO, Taney County, MO
- Clay County, AR borders Butler County, MO, Dunklin County, MO, Ripley County, MO
- Craighead County, AR borders Dunklin County, MO
- Fulton County, AR borders Howell County, MO, Oregon County, MO, Ozark County, MO
- Greene County, AR borders Dunklin County, MO
- Marion County, AR borders Ozark County, MO, Taney County, MO
- Mississippi County, AR borders Dunklin County, MO, Pemiscot County, MO
- Randolph County, AR borders Oregon County, MO, Ripley County, MO
- Sharp County, AR borders Oregon County, MO
What changes when you cross the line
- Different viewers. On the Arkansas side the official maps run on: ArcGIS Map Viewer (10); county web map (2). On the Missouri side: IntegrityGIS (6); no verified public viewer listed yet (2); BreezeMaps (1); CAMAvision Maps (1); Beacon (Schneider Geospatial) (1). 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
Open the Platbookmapper Land Map, search the nearest county, and tap the spot. The land report shows which county it falls in, along with flood zone, elevation, soil and wetlands, and links to that county's parcel map.
Related guides
More: Arkansas counties · Missouri 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.