Texas · FIPS 48201 · County seat: Houston
Harris County, TX GIS & Parcel Viewer
Use this page to reach the official county parcel map for Harris County, Texas. The button below opens the Harris 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 Harris County parcel map ↗
Opens arcweb.hcad.org in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Harris County appraisal district map |
|---|---|
| Type | Appraisal district map (county level) |
| Website | arcweb.hcad.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Houston |
| Population | 4,835,125 (2023 Census Bureau estimate) |
| Land area | 1,707 sq mi |
| FIPS code | 48201 |
Who runs this map
Texas splits the job: an appraisal district, not the county itself, values each property. This viewer belongs to the district covering Harris County. As of our October 2026 test, anyone could open it without signing in or paying.
How to use the Harris 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.
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.
Harris County by the numbers
Census Bureau figures put Harris County at about 4,835,125 people (2023 estimate) on roughly 1,707 square miles of land, which is about 2,833 residents per square mile. That makes it the most populous of Texas's 254 counties. The county seat is Houston.
Nearby parcel maps
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Harris County:
- Brazoria County
- Chambers County
- Fort Bend County
- Galveston County
- Liberty County
- Montgomery County
- Waller County
Related guides
Maps vs. surveys
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.