Texas · FIPS 48277 · County seat: Paris
Lamar County, TX GIS & Parcel Viewer
Use this page to reach the official county parcel map for Lamar County, Texas. The button below opens the Lamar 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 Lamar County parcel map ↗
Opens gis.bisclient.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Lamar County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | gis.bisclient.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Paris |
| Population | 51,127 (2023 Census Bureau estimate) |
| Land area | 907 sq mi |
| FIPS code | 48277 |
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 Lamar County. Our October 2026 check found the map open to the public, with no account or payment needed.
How to use the Lamar 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.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
About Lamar County
Census Bureau figures put Lamar County at about 51,127 people (2023 estimate) on roughly 907 square miles of land, which is about 56 residents per square mile. Among Texas's 254 counties, it is the 72nd largest by population. The county seat is Paris.
Counties next to Lamar County
Lamar County shares a border with the counties below. Each link has its own official map:
A note on accuracy
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.