Land parcels are boundaries that have associated information such as property owner, land use, value, and location attributes. This property information is recorded and maintained at the county level in Texas. Land parcels are used by public entities to make informed decisions on community planning, development, or emergency preparation and response. In 2016, research for the Texas Geographic Information Officer’s report revealed the single greatest need for state agency business was a statewide database of land parcel boundaries updated on an annual basis.
In 2017, a statewide study was conducted to identify the availability of land parcel boundaries in a geographic information system (GIS) or other digital format. The study revealed, of the 253 county appraisal districts in Texas, a total of 212 counties reported the existence of digital parcel boundaries in their programs. Additionally, the report discovered there is no requirement for land parcel boundary development and maintenance in a GIS or other digital format.
At present, the TNRIS StratMap team is leading the effort to produce a statewide land parcel database with help and endorsement from a number of state agencies. Updates and accomplishments of this enormous project will be posted to this page as things progress.
of 253 appraisal district datasets are available for download.
Launch DataHub See available counties in the map below. To download the parcel data visit the DataHub.
This timeline documents past events and estimates future milestones. As milestones are met, this timeline will be updated. Please check each county for the most recent version of data.
This iterative program flow will occur throughout the year. At no one time will there be a completed or final version of data as each data source has varying update schedules. Please check each county for the most recent version of data.
Texas State Agencies make extensive use of Land Parcel data for all types of operations and applications.
General Land Office (GLO)
Texas Division of Emergency Management (TDEM)
Texas Department of Transportation (TXDOT)
Health and Human Services Commission (HHSC)
Texas Water Development Board (TWDB)
Texas Animal Health Commission (TAHC)
Texas Commission on Environmental Quality (TCEQ)
Texas Parks and Wildlife Department (TPWD)
Commission on State Emergency Communications (CSEC)
Department of Public Safety (DPS)
A geographic parcel is a spatial reference to tabular information of a property regarding ownership, land use, legal description, ownership, etc. from the computer assisted mass appraisal (CAMA) software of an appraisal district.
Most of the parcels are in shapefile format and require a geographic information system (GIS) software for viewing. Some datasets are .dgn or .kmz format. Software to view this data is not provided by TNRIS.
These geographic parcel data are created by county appraisal districts or their third party vendor. TNRIS compiles these data for statewide distribution and does not edit these data. A directory of appraisal districts is located on the Texas Comptroller of Public Accounts website here: https://comptroller.texas.gov/taxes/property-tax/county-directory/
TNRIS collects these data to allow end users to acquire statewide parcel data in one location for FREE. These geographic parcel data are created by appraisal districts or their third party vendor to supplement the appraisal process with a visual representation of property. They are not survey grade and should not be used for legal purposes.
TNRIS will attempt to refresh annually from each appraisal district or their third party vendor. The refresh rate will vary across the state. Some counties may refresh multiple times within one year. The year and month of the parcel dataset is included in the file name as YYYYMM.
The purpose of this initiative is to provide statewide parcel data in one location for FREE. Yes, this data may sometimes be acquired through appraisal districts, their 3rd party vendor, or commercial vendors. More current data and greater volume of information may be available from them as compared to the FREE TNRIS statewide version. A directory of appraisal districts is located on the Texas Comptroller of Public Accounts website here: https://comptroller.texas.gov/taxes/property-tax/county-directory
There are 254 counties and 253 appraisal districts in Texas (Potter and Randall counties have a joint office).
There is no state mandate for a standardized parcel schema in Texas. Therefore, the individual appraisal district schema is dictated by their business needs or based on their third party standards. TNRIS may recommend a schema for future datasets but cannot require this from the appraisal districts.
These geographic parcel data are created by county appraisal districts or their third party vendor. TNRIS compiles these data for statewide distribution and does not edit these data. A directory of appraisal districts is located on the Texas Comptroller of Public Accounts website: https://comptroller.texas.gov/taxes/property-tax/county-directory
Not all counties are available for download from TNRIS. We continue to work with appraisal districts to provide as many county parcel datasets as possible. As they are available, they will be posted online for download and the map updated. A directory of appraisal districts is located on the Texas Comptroller of Public Accounts website: https://comptroller.texas.gov/taxes/property-tax/county-directory/
Contact TNRIS with any further questions regarding this program and someone from StratMap will get in touch with you.Contact Us