County GIS · State lines · October 19, 2026
Indiana–Kentucky Border Counties: Parcel Maps on Both Sides
All 26 counties on the Indiana–Kentucky 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 Indiana–Kentucky border and their parcel maps? According to the Census Bureau's county adjacency file, 13 Indiana counties touch 13 Kentucky 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.
Indiana–Kentucky border at a glance
- Counties on the line: 26 (13 in Indiana, 13 in Kentucky)
- With a verified public parcel viewer in our directory: 20 of 26
- Residents, 2023 estimates: about 666,850 on the Indiana side and 1,344,340 on the Kentucky side
- Most populous on each side: Vanderburgh County, IN (179,810) and Jefferson County, KY (772,144)
- Largest by land area: Harrison County, IN (484 sq mi) and Hardin County, KY (623 sq mi)
Indiana counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Clark County | Jeffersonville | 373 | 125,467 | Beacon (Schneider Geospatial) |
| Crawford County | English | 306 | 10,438 | WTH GIS |
| Dearborn County | Lawrenceburg | 305 | 51,215 | Beacon (Schneider Geospatial) |
| Floyd County | New Albany | 148 | 80,809 | Beacon (Schneider Geospatial) |
| Harrison County | Corydon | 484 | 40,006 | Beacon (Schneider Geospatial) |
| Jefferson County | Madison | 361 | 33,056 | WTH GIS |
| Ohio County | Rising Sun | 86 | 6,004 | WTH GIS |
| Perry County | Tell City | 382 | 19,209 | WTH GIS |
| Posey County | Mount Vernon | 409 | 25,040 | WTH GIS |
| Spencer County | Rockport | 397 | 19,910 | WTH GIS |
| Switzerland County | Vevay | 221 | 10,019 | WTH GIS |
| Vanderburgh County | Evansville | 233 | 179,810 | Beacon (Schneider Geospatial) |
| Warrick County | Boonville | 385 | 65,867 | WTH GIS |
Kentucky counties on the line
| County | Seat | Land (sq mi) | 2023 pop. | Parcel viewer |
|---|---|---|---|---|
| Boone County | Burlington | 246 | 140,496 | ArcGIS Web AppBuilder |
| Breckinridge County | Hardinsburg | 570 | 21,124 | no verified public viewer listed yet |
| Carroll County | Carrollton | 129 | 10,987 | qPublic (Schneider Geospatial) |
| Daviess County | Owensboro | 458 | 103,458 | ArcGIS Web AppBuilder |
| Gallatin County | Warsaw | 98 | 8,792 | WTH GIS |
| Hancock County | Hawesville | 188 | 8,920 | no verified public viewer listed yet |
| Hardin County | Elizabethtown | 623 | 112,273 | no verified public viewer listed yet |
| Henderson County | Henderson | 436 | 44,119 | ArcGIS Web AppBuilder |
| Jefferson County | Louisville | 381 | 772,144 | county web map |
| Meade County | Brandenburg | 305 | 30,131 | no verified public viewer listed yet |
| Oldham County | La Grange | 187 | 70,183 | ArcGIS Instant Apps |
| Trimble County | Bedford | 152 | 8,607 | no verified public viewer listed yet |
| Union County | Morganfield | 343 | 13,106 | no verified public viewer listed yet |
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:
- Clark County, IN borders Jefferson County, KY, Oldham County, KY, Trimble County, KY
- Crawford County, IN borders Meade County, KY
- Dearborn County, IN borders Boone County, KY
- Floyd County, IN borders Jefferson County, KY
- Harrison County, IN borders Hardin County, KY, Jefferson County, KY, Meade County, KY
- Jefferson County, IN borders Carroll County, KY, Trimble County, KY
- Ohio County, IN borders Boone County, KY
- Perry County, IN borders Breckinridge County, KY, Hancock County, KY, Meade County, KY
- Posey County, IN borders Henderson County, KY, Union County, KY
- Spencer County, IN borders Daviess County, KY, Hancock County, KY
- Switzerland County, IN borders Boone County, KY, Carroll County, KY, Gallatin County, KY
- Vanderburgh County, IN borders Henderson County, KY
- Warrick County, IN borders Daviess County, KY, Henderson County, KY
What changes when you cross the line
- Different viewers. On the Indiana side the official maps run on: WTH GIS (8); Beacon (Schneider Geospatial) (5). On the Kentucky side: no verified public viewer listed yet (6); ArcGIS Web AppBuilder (3); qPublic (Schneider Geospatial) (1); WTH GIS (1); county web map (1); ArcGIS Instant Apps (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: Indiana counties · Kentucky 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 19, 2026) for each county's official parcel viewer.
- County seats: Wikidata (county seat property), cross-checked against Census place names.