Run a guided check
Scan Check Protect walks you through verifying your Texas registration and flags anything that needs fixing — free.
Start at Scan Check Protect →Williamson County, Texas
Check your Williamson County registration.
Confirm what Texas has on file first, then use Williamson County's official election channels below.
About Williamson County
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. Its county seat is Georgetown. The county is named after Robert McAlpin Williamson, a community leader and a veteran of the Battle of San Jacinto.
Description adapted from Wikipedia, CC BY-SA 4.0.
At a glance
Williamson County at a glance
- County seat
- Georgetown
- Population
- 609,017 (2020)
- Land area
- 1,135 sq mi
- Founded
- 1848
Communities
Largest communities in Williamson County
- Round Rock119,468
- Cedar Park77,595
- Georgetown county seat67,176
- Leander59,202
- Hutto27,577
History of Williamson County
Williamson County is part of the Austin-Round Rock-San Marcos metropolitan statistical area. It was included with Austin in the Best Cities to Live in for 2009 by the Milken Institute. Located in Central Texas, it is on both the Edwards Plateau to the west, rocky terrain and hills, and Texas Blackland Prairies in the east, rich, fertile farming land. The two areas are roughly bisected by Interstate 35.
Adapted from Wikipedia, CC BY-SA 4.0.
Next door
Neighboring counties
Start here
Confirm you're ready to vote in Williamson County
Ask Williamson County directly
Your county election office handles registration, mail ballots, and polling places.
Williamson County election office →Official channels
Williamson County election resources
Williamson County election office · (512) 943-1630. Statewide tools and every Texas resource in one place: the Texas page at Scan Check Protect →
Part of Texas Voter Check
This is the Williamson County page of Texas Voter Check, a project of True the Vote, pointing Texas voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Williamson County or Texas Secretary of State publishes, they are right and this page is not.