Texas · FIPS 48031 · County seat: Johnson City
Blanco County, TX GIS & Parcel Viewer
Looking for lot lines or a parcel number in Blanco County, TX? The quickest route is the Blanco 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 Blanco County parcel map ↗
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Quick facts
| Official map | Blanco County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | gis.bisclient.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Johnson City |
| Population | 13,048 (2023 Census Bureau estimate) |
| Land area | 709 sq mi |
| FIPS code | 48031 |
Who runs this map
The source here is the Blanco 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.
Searching for a parcel, step by step
- 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.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
About Blanco County
The U.S. Census Bureau estimated Blanco County's population at 13,048 in 2023, spread over about 709 square miles of land, or roughly 18 people per square mile. Among Texas's 254 counties, it is the 147th largest by population. Its county seat is Johnson City.
Counties next to Blanco County
Blanco County shares a border with the counties below. Each link has its own official map:
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.