Texas · FIPS 48013 · County seat: Jourdanton
Atascosa County, TX GIS & Parcel Viewer
Looking for lot lines or a parcel number in Atascosa County, TX? The quickest route is the Atascosa County appraisal district map, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Atascosa County parcel map ↗
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Atascosa County at a glance
| Official map | Atascosa County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | gis.bisclient.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Jourdanton |
| Population | 51,784 (2023 Census Bureau estimate) |
| Land area | 1,220 sq mi |
| FIPS code | 48013 |
About the official source
The source here is the Atascosa County appraisal district. Texas law gives these districts the job of valuing property for every local taxing unit in the county. As of our October 2026 test, anyone could open it without signing in or paying.
Finding a property on this map
- Open the link. In Texas, each county's appraisal district (CAD) values property for local taxing units, and this is the CAD's public map.
- Search by owner, address or property ID. The property ID is the account number the CAD uses on its records.
- Click a parcel on the map to bring up its account summary.
- Use the account details to look up values or the full appraisal record on the CAD's site.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
About Atascosa County
Census Bureau figures put Atascosa County at about 51,784 people (2023 estimate) on roughly 1,220 square miles of land, which is about 42 residents per square mile. That makes it number 71 out of 254 Texas counties by population. Its county seat is Jourdanton.
Counties next to Atascosa County
Parcels close to the edge of Atascosa County can fall in the next county over. Neighboring counties:
- Bexar County
- Frio County
- Karnes County
- La Salle County
- Live Oak County
- McMullen County
- Medina County
- Wilson County
Maps vs. surveys
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.