Williamson County GIS Portal (Texas)

Williamson County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Williamson County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Williamson County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Williamson County, Texas. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the Williamson County Assessor Office website.

Williamson County Assessor's Office Georgetown TX 904 South Main Street 78626 512-943-1602


Williamson County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as Williamson County GIS maps. The GIS maps at a Williamson County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in Williamson County, Texas. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the Williamson County Town and City Hall website.

Cedar Park City Hall Cedar Park TX 450 Cypress Creek Road 78613 512-401-5000

Florence City Hall Florence TX 106 South Patterson Avenue 76527 254-793-2490

Georgetown City Hall Georgetown TX 113 East 8th Street 78626 512-930-3652

Granger City Hall Bartlett TX 214 East Davilla 76511 512-859-2755

Hutto City Hall Hutto TX 401 W Front St 78634 512-759-4033

Leander City Hall Leander TX 200 West Willis Street 78641 512-259-1178

Liberty Hill City Hall Liberty Hill TX 2801 Ranch Road 1869 78642 512-778-5449

Round Rock City Hall Round Rock TX 221 East Main Street, Ste 221 78664 512-218-5400

Taylor City Hall Taylor TX 400 Porter Street 76574 512-352-3675

Thrall City Hall Thrall TX 104 Main Street 76578 512-898-5306

Williamson County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including Williamson County property maps that show boundaries, public property, property divisions, and in some cases, population information in Williamson County, Texas. They may also include property value assessments and property tax rates. Williamson County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Taylor City Clerk Taylor TX 400 Porter Street 76574 512-352-3676

Williamson County Clerk Georgetown TX 405 Martin Luther King Street 78626 512-943-1150


Williamson County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including Williamson County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in Williamson County, Texas. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Williamson County Recorder of Deeds website.

Williamson County Recorder of Deeds Georgetown TX 405 Martin Luther King Street 78627 512-943-1515