Texas · FIPS 48181 · County seat: Sherman
Grayson County, TX GIS & Parcel Viewer
Here is the direct link to the county parcel map covering Grayson County, TX: the Grayson County appraisal district map. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Grayson 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 | Grayson County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | gis.bisclient.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Sherman |
| Population | 146,907 (2023 Census Bureau estimate) |
| Land area | 933 sq mi |
| FIPS code | 48181 |
About the official source
The source here is the Grayson 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
- 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.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Grayson County by the numbers
The U.S. Census Bureau estimated Grayson County's population at 146,907 in 2023, spread over about 933 square miles of land, or roughly 157 people per square mile. By population it ranks 34th of 254 counties in Texas. Sherman serves as the county seat.
Neighboring counties
Parcels close to the edge of Grayson County can fall in the next county over. Neighboring counties:
- Collin County
- Cooke County
- Denton County
- Fannin County
- Bryan County, OK
- Love County, OK
- Marshall County, OK
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.