Texas · FIPS 48359 · County seat: Vega
Oldham County, TX GIS & Parcel Viewer
Use this page to reach the official county parcel map for Oldham County, Texas. The button below opens the Oldham County appraisal district map in a new tab, so you can look up parcels by address, owner or parcel number on the source site itself.
Open the Oldham County parcel map ↗
Opens gis.bisclient.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Oldham County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | gis.bisclient.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Vega |
| Population | 1,783 (2023 Census Bureau estimate) |
| Land area | 1,501 sq mi |
| FIPS code | 48359 |
Where the parcel data comes from
In Texas, property values are set by appraisal districts rather than by the county government, so this map comes from the appraisal district that serves Oldham County. When we tested the link in October 2026 it opened with no login and no fee.
Searching for a parcel, step by step
- Press the button above to open the appraisal district's map. Texas appraisal districts set taxable values, so their maps tie each parcel to a property account.
- Look up a property by its owner, situs address or property ID.
- Click any lot to see the account number and basic details.
- Follow the record link, when there is one, for values and exemptions.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
The county in brief
Census Bureau figures put Oldham County at about 1,783 people (2023 estimate) on roughly 1,501 square miles of land, which is about 1.2 residents per square mile. That makes it number 235 out of 254 Texas counties by population. The county seat is Vega.
Nearby parcel maps
Parcels close to the edge of Oldham County can fall in the next county over. Neighboring counties:
A note on accuracy
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.