Williamson County, TX Parcels & GIS Data
Williamson County, TX parcel data: 286,813 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.
Land Records publishes Williamson County, Texas parcel data covering 286,813 property records.
This page documents parcel-level coverage for Williamson County, Texas. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Williamson County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Williamson County property dataset.
Williamson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 609,017. The 2025 population estimate was 752,827.
Official county website: http://wilco.org
The FIPS code for Williamson County is 48491.
Attribute coverage
Williamson County contains 286,813 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).
| Column | Coverage | Records populated |
|---|---|---|
lrid | 100% | 286,813 |
parcelid | 100% | 286,813 |
parcelid2 | 99.3% | 284,891 |
ogparcelid | 100% | 286,813 |
ogparcelid2 | <0.1% | 0 |
parentid | <0.1% | 0 |
stackid | <0.1% | 0 |
geoid | 100% | 286,813 |
statefp | 100% | 286,813 |
countyfp | 100% | 286,813 |
countyname | 100% | 286,813 |
cousubfp | 100% | 286,813 |
cousubname | 100% | 286,813 |
tractce | 100% | 286,813 |
tractname | 100% | 286,813 |
taxacctnum | 100% | 286,812 |
taxyear | <0.1% | 0 |
taxdistrict | 99.3% | 284,891 |
usecode | 100% | 286,812 |
usedesc | 100% | 286,812 |
zoningcode | <0.1% | 0 |
zoningdesc | <0.1% | 0 |
numbldgs | <0.1% | 0 |
numunits | <0.1% | 0 |
yearbuilt | <0.1% | 0 |
numfloors | <0.1% | 0 |
bldgsqft | <0.1% | 0 |
bedrooms | <0.1% | 0 |
halfbaths | <0.1% | 0 |
fullbaths | <0.1% | 0 |
imprvalue | <0.1% | 0 |
landvalue | <0.1% | 0 |
agvalue | <0.1% | 0 |
totalvalue | <0.1% | 0 |
taxacres | 34.4% | 98,789 |
calcarea | 100% | 286,813 |
saleamt | <0.1% | 0 |
saledate | <0.1% | 0 |
ownertype | <0.1% | 0 |
ownername | 99.3% | 284,891 |
owneraddr | 99.3% | 284,700 |
ownercity | 99.2% | 284,390 |
ownerstate | 99.2% | 284,387 |
ownerzip | 99.2% | 284,385 |
parceladdr | 99.3% | 284,891 |
parcelcity | 99.2% | 284,383 |
parcelstate | 99.1% | 284,265 |
parcelzip | 99.1% | 284,373 |
legaldesc | 99.3% | 284,891 |
township | <0.1% | 0 |
section | <0.1% | 0 |
qtrsection | <0.1% | 0 |
range | <0.1% | 0 |
plssdesc | <0.1% | 0 |
book | <0.1% | 0 |
page | <0.1% | 0 |
parceltype | <0.1% | 0 |
accesstype | <0.1% | 0 |
iucnclass | <0.1% | 0 |
placename | <0.1% | 0 |
placetype | <0.1% | 0 |
firmid | 100% | 286,723 |
firmdate | 100% | 286,723 |
fldzone | 100% | 286,723 |
zonesubty | 98.8% | 283,236 |
staticbfe | <0.1% | 120 |
elevmin | <0.1% | 0 |
elevmax | <0.1% | 0 |
elevavg | <0.1% | 0 |
fireplaces | <0.1% | 0 |
heating | <0.1% | 0 |
heatfuel | <0.1% | 0 |
cooling | <0.1% | 0 |
foundation | <0.1% | 0 |
roofcover | <0.1% | 0 |
siding | <0.1% | 0 |
updated | 99.3% | 284,891 |
centroidx | 100% | 286,813 |
centroidy | 100% | 286,813 |
surfpointx | 100% | 286,813 |
surfpointy | 100% | 286,813 |
geom | 100% | 286,813 |
lrversion | 100% | 286,813 |
Neighboring counties
Parcel data for counties bordering Williamson County: