County GIS · State lines · October 20, 2026
Alabama–Mississippi Border Counties and Their Parcel Maps
All 22 counties on the Alabama–Mississippi 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 Alabama–Mississippi border and their parcel maps? According to the Census Bureau's county adjacency file, 10 Alabama counties touch 12 Mississippi 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.
Alabama–Mississippi border at a glance
- Counties on the line: 22 (10 in Alabama, 12 in Mississippi)
- With a verified public parcel viewer in our directory: 22 of 22
- Residents, 2023 estimates: about 699,211 on the Alabama side and 443,057 on the Mississippi side
- Most populous on each side: Mobile County, AL (411,640) and Jackson County, MS (146,389)
- Largest by land area: Mobile County, AL (1,229 sq mi) and Wayne County, MS (811 sq mi)
Alabama counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Choctaw County | Butler | 913 | 12,252 | FlagshipGIS |
| Colbert County | Tuscumbia | 593 | 58,361 | KCS GIS |
| Franklin County | Russellville | 634 | 31,802 | KCS GIS |
| Lamar County | Vernon | 605 | 13,661 | FlagshipGIS |
| Lauderdale County | Florence | 668 | 96,814 | KCS GIS |
| Marion County | Hamilton | 742 | 29,244 | FlagshipGIS |
| Mobile County | Mobile | 1,229 | 411,640 | appraisal district map |
| Pickens County | Carrollton | 881 | 18,688 | FlagshipGIS |
| Sumter County | Livingston | 904 | 11,727 | ArcGIS Map Viewer |
| Washington County | Chatom | 1,080 | 15,022 | FlagshipGIS |
Mississippi counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Clarke County | Quitman | 692 | 15,228 | ArcGIS Experience Builder |
| George County | Lucedale | 479 | 25,619 | MARIS Mississippi Statewide Parcels map viewer |
| Greene County | Leakesville | 713 | 13,601 | ArcGIS Experience Builder |
| Itawamba County | Fulton | 533 | 24,093 | MARIS Mississippi Statewide Parcels map viewer |
| Jackson County | Pascagoula | 723 | 146,389 | MARIS Mississippi Statewide Parcels map viewer |
| Kemper County | De Kalb | 766 | 8,584 | ArcGIS Experience Builder |
| Lauderdale County | Meridian | 704 | 70,527 | ArcGIS Experience Builder |
| Lowndes County | Columbus | 505 | 57,283 | ArcGIS Web AppBuilder |
| Monroe County | Aberdeen | 765 | 33,609 | ArcGIS Experience Builder |
| Noxubee County | Macon | 695 | 9,914 | ArcGIS Experience Builder |
| Tishomingo County | Iuka | 424 | 18,507 | ArcGIS Experience Builder |
| Wayne County | Waynesboro | 811 | 19,703 | ArcGIS Experience Builder |
Which counties face each other
Here is who borders whom across the line, based on the Census Bureau adjacency file:
- Choctaw County, AL borders Clarke County, MS, Lauderdale County, MS, Wayne County, MS
- Colbert County, AL borders Tishomingo County, MS
- Franklin County, AL borders Itawamba County, MS, Tishomingo County, MS
- Lamar County, AL borders Lowndes County, MS, Monroe County, MS
- Lauderdale County, AL borders Tishomingo County, MS
- Marion County, AL borders Itawamba County, MS, Monroe County, MS
- Mobile County, AL borders George County, MS, Greene County, MS, Jackson County, MS
- Pickens County, AL borders Lowndes County, MS, Noxubee County, MS
- Sumter County, AL borders Kemper County, MS, Lauderdale County, MS, Noxubee County, MS
- Washington County, AL borders Greene County, MS, Wayne County, MS
What changes when you cross the line
- Different viewers. On the Alabama side the official maps run on: FlagshipGIS (5); KCS GIS (3); appraisal district map (1); ArcGIS Map Viewer (1). On the Mississippi side: ArcGIS Experience Builder (8); MARIS Mississippi Statewide Parcels map viewer (3); ArcGIS Web AppBuilder (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
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: Alabama counties · Mississippi 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.