Texas Maps and Data
Digital Data Availability Summary
| TEXAS | Spatial | Non-spatial | None |
| GIS Portals | x | ||
| Submerged Lands | x | ||
| Ownership | |||
| Submerged Lands Parcels | x | ||
| General Property and Parcel Data | x | ||
| Public and Conservation Lands | x | ||
| Leases and Other Use Authorizations | |||
| Aquaculture and Shellfish | x | ||
| Other Use Authorizations | x | ||
| Local Parcel Information | 18 coastal counties | ||
| Deed Records | 5 | 13 | |
| Assessment Data | 17 | 1 | |
| Parcels | 4 | 14 | |
GIS Portals
- General Land Office (web site): Significant GIS data resources for identifying ownership and leasing information along the Texas coast and Gulf of Mexico are listed below.1 Full catalog is worth consulting for additional information on designated uses, jurisdictions, protected areas, habitats, and other environmental information.
- Natural Resources Information System (web site): State clearinghouse for natural resource data. Basemap layers and digital orthophotos available for download or though ArcIMS service to GIS software.
- Coastal Natural Resources Inventory Program (web site): Data from a variety of sources to assist oil spill response.
Submerged Lands
| Data | State Submerged Lands. |
| Access | Download ESRI shapefile. (web page) |
| Detail | State-owned tracts in offshore waters and coastal bays. These tracts are owned and leased by the GLO. |
| Distributor | Texas General Land Office Geographic Information System. |
Ownership
Submerged Lands Parcels
| Data | State Submerged Lands. [Same data source and content as above.] |
| Access | Download ESRI shapefile. (web page) |
| Detail | State-owned tracts in offshore waters and coastal bays. These tracts are owned and leased by the GLO. |
| Distributor | Texas General Land Office Geographic Information System. |
General Property and Parcel Data
| Data | Integrated Parcel Index Layer. |
| Access | State of Texas Digital Base Map Plan |
| Detail | Data from county appraisal districts. Draft 2004. |
| Distributor | Texas Geographic Information Council. |
| Data | Original Texas Land Survey. |
| Access | Download ESRI shapefiles or personal geodatabase by county. (web page) |
| Detail | Interpretation of the Original Texas Land Surveys boundaries and bay tracts. Maintained by the Texas Railroad Commission. |
| Distributor | Texas Natural Resource Information System. |
Public and Conservation Lands
| Data | State Submerged Lands. |
| Access | Download ESRI shapefile. (web page) |
| Detail | State-owned tracts in offshore waters and coastal bays. These tracts are owned and leased by the GLO. |
| Distributor | Texas General Land Office Geographic Information System. |
| Data | Audubon Sanctuaries. |
| Access | Downloadable data available as ESRI shapefile or coverage export file. (web page) |
| Detail | Coastal tracts containing waterbird colonies leased to the National Audubon Society. |
| Distributor | Texas General Land Office Geographic Information System. |
| Data | National Parks. |
| Access | Download ESRI shape file or ArcInfo export file. (web page) |
| Detail | National Park Service (NPS) areas; data provided by the NPS. 2001. |
| Distributor | Texas General Land Office Geographic Information System. |
| Data | State Parks/Wildlife Management Areas |
| Access | Download ESRI shape file or ArcInfo export file. (web page) |
| Detail | Boundaries of state parks and wildlife management areas owned or managed by the Texas Parks and Wildlife Department. Data provided by TPWD. 1970-1995. |
| Distributor | Texas General Land Office Geographic Information System. |
Leases and Other Use Authorizations
Aquaculture and Shellfish
| Data | Aquaculture Facilities. |
| Access | Download ESRI shapefile or coverage export file. (web page) |
| Detail | Locations of aquaculture operations on the Texas coast (incomplete). |
| Distributor | Texas General Land Office Geographic Information System. |
| Data | Private Oyster Leases. |
| Access | Download ESRI shapefile or coverage export file. (web page) |
| Detail | Submerged tracts leased for oyster harvesting by private operators. |
| Distributor | Texas General Land Office Geographic Information System. |
Other Use Authorizations
| Data | Coastal Leases and Easements. |
| Access | Download ESRI shapefile. (web page) |
| Detail | Includes numerous types of leases and easements, including: locations of structures and activities permitted by the GLO within state-owned land and waters; features represented by a single point location, such as piers, docks, breakwaters, and shoreline protection projects; areal features such as dredging areas, parks, mitigation projects, and conservation easements; oil and gas leases located in the submerged areas of the Texas Gulf Coast; pipelines located in state-owned submerged lands and other areas along the Texas Gulf Coast; and coastal tracts containing waterbird colonies leased to the National Audubon Society. |
| Distributor | Texas General Land Office Geographic Information System. |
Local Parcel Information
All Counties
Assessment Data: The Texas Association of Appraisal Districts (web page) maintains a list of County Appraisal District web sites. Assessment Data is also available for all Texas coastal counties (except Kennedy) at TaxNetUSA (web site). Basic searching is free. Advanced searching requires a subscription fee. This web site also lists counties where clerk’s records (deed records) and plat maps (parcel maps) are available. (web page)
Aransas County (web site)
| Deed Records | No data found. |
| Assessment Data | Appraisal District Searches. Report has link to Parcels. (web page) |
| Parcels | Using Assessment Data search, above, call up a record; on resulting report, click link to “GIS map.” (web page) |
Brazoria County (web site)
| Deed Records | Free index searching. Fees for document images. (web page) |
| Assessment Data | Appraisal Rolls. (web page) |
| Parcels | No data found. |
Calhoun County (web site)
| Deed Records | No data found; but field “Deed history” appears in Assessment Data. |
| Assessment Data | Property Search. Calhoun CAD (Live) (web page) |
| Parcels | No data found. |
Cameron County (web site)
| Deed Records | No data found; but field “Deed History: Last 3 Deed Transactions” appears in Assessment Data. |
| Assessment Data | Appraisal District Property Search. (web page) |
| Parcels | No online or downloadable data found; however, data may be available on request. Cameron County Department of Transportation GIS. 7-Section Map (Parcel Map). (web page). Or inquire with Cameron County Geographic Information Systems Department, phone 866-286-8777. |
| Other | WebGIS. Terrain, Land Use/Land Class and Digital Line Graph data (web page). |
Chambers County (web site)
| Deed Records | No data found. |
| Assessment Data | Appraisal District Data Search. (web page) |
| Parcels | No data found. |
Galveston County (web site)
| Deed Records | County Clerk. Search: OPR. (web page) |
| Assessment Data | Central Appraisal District Searches. (web page) |
| Parcels | Central Appraisal District GIS Shape Files: Parcels. (web page) |
Harris County (web site)
| Deed Records | Real Property: Search database. (web page) |
| Assessment Data | Appraisal District. Real Property: Data files. (web page) |
| Parcels | Appraisal District. GIS Files: Parcels.shp. (web page) |
| Other | GIS Task Force. (web site) |
Jackson County (web site)
| Deed Records | No data found. |
| Assessment Data | Appraisal District Searches. (web page) |
| Parcels | No data found. |
Jefferson County (web site)
| Deed Records | Public Records Online. (web page) |
| Assessment Data | Appraisal District Property Search. (web page) |
| Parcels | No data found. |
Kennedy County (no web site)
| Deed Records | No data found. |
| Assessment Data | No data found. |
| Parcels | No data found. |
Kleberg County (web site)
| Deed Records | No data found. |
| Assessment Data | TaxNetUSA. Free Search. (web page) |
| Parcels | No data found. |
Matagorda County (web site)
| Deed Records | No data found; but field “Deed history” appears in Assessment Data. |
| Assessment Data | Tax Assessor/Collector. Matagorda CAD (Live): 2006. Includes some deed history. (web page) |
| Parcels | No data found. |
Nueces County (web site)
| Deed Records | Search Clerk Records (web page) Registration required. Index data free; document images available for a fee. |
| Assessment Data | Appraisal District Searches. Report has links to Plat Map and GIS Map (parcels). (web page) |
| Parcels | Assessment Data search, above, call up a record; on resulting report, click link to “Plat Map” (TIFF of paper map) “GIS map” (not operating 9/11/07). (web page) |
Orange County (web site)
| Deed Records | Request clerk records by mail. $5/search. Online access is being planned (9/2007). (web page) |
| Assessment Data | Appraisal District Search. (web page) |
| Parcels | No data found. |
Refugio County (web site)
| Deed Records | No data found. |
| Assessment Data | Appraisal District Property Search Page. (web page) |
| Parcels | No data found. |
San Patricio County (web site)
| Deed Records | No data found; but field “Deed information” appears in Assessment Data. |
| Assessment Data | Search Data. (web page). Alternative interface: Public Tax Access Searches. (web page) |
| Parcels | No data found; however, Appraisal District has a GIS designed by P2 Energy Solutions (as indicated on this web page). |
Victoria County (web site)
| Deed Records | No data found; but field “Deed history” appears in Assessment Data. |
| Assessment Data | Appraisal District Property Search. Victory CAD (Live). (web page) |
| Parcels | No data found. |
Willacy County (no web site)
| Deed Records | No data found; but field “Deed information” appears in Assessment Data. |
| Assessment Data | True Automation, Inc. View Property Info. (web page) |
| Parcels | No data found. |
1 The descriptions of the contents of each GIS datalayer are verbatim from the TGLO GIS online catalog.
