Texas · FIPS 48427 · County seat: Rio Grande City
Starr County, TX GIS & Parcel Viewer
Parcel lookups for Starr County start at the Starr County appraisal district map. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Starr County parcel map ↗
Opens starrcad.org in a new tab. We link out and never embed or copy parcel data.
Starr County at a glance
| Official map | Starr County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | starrcad.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Rio Grande City |
| Population | 65,934 (2023 Census Bureau estimate) |
| Land area | 1,223 sq mi |
| FIPS code | 48427 |
Where the parcel data comes from
Texas splits the job: an appraisal district, not the county itself, values each property. This viewer belongs to the district covering Starr County. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Starr County viewer
- 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.
Starr County by the numbers
The U.S. Census Bureau estimated Starr County's population at 65,934 in 2023, spread over about 1,223 square miles of land, or roughly 54 people per square mile. That makes it number 55 out of 254 Texas counties by population. Rio Grande City serves as the county seat.
Counties next to Starr County
Starr County shares a border with the counties below. Each link has its own official map:
Before you rely on the lines
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.