| File Name | Last Update |
| Shapefiles | |
| Parcels with data | 09/18/2025 |
| Street Centerlines | 09/18/2025 |
| Subdivisions | 09/15/2025 |
| Lot Lines | 09/15/2025 |
| Railroads | 11/28/2006 |
| County Border | 10/25/2006 |
| Abstracts | — |
| DBF Files, Annotation Files, and PDF Maps | |
| Annotation GDB (ArcGIS Pro Only) | 09/18/2025 |
| Parcel DBF – Data Only | 09/15/2025 |
| PDF Maps | 09/15/2025 |
| Neighborhood PDF Maps | 09/15/2025 |
| Districts | |
| School Districts | 03/21/2017 |
| City Boundaries | 09/15/2025 |
| MUDs | 09/15/2025 |
| WCIDs | 09/15/2025 |
| Drainage Districts | 04/03/2018 |
| Navigation District | 09/21/2009 |
| College Districts | 09/21/2009 |
| Emergency Service Districts | 03/14/2014 |
| ESN | 10/12/2008 |
Please see the ArcGIS Apps page to find an app that will work for your environment.
Geospatial or map data maintained by the Galveston Central Appraisal District is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. It does not represent an on-the-ground survey and only represents the approximate relative location of property boundaries.