Williamson County, Illinois
Check your Williamson County registration.
Confirm what Illinois has on file first, then use Williamson County's official election channels below.
Check my registration with Scan Check Protect Use the official Illinois lookup
About Williamson County
Williamson County is a county in Illinois and is part of the Metro Lakeland area of Southern Illinois. Its largest city and county seat is Marion. As of the 2020 census, it had a population of 67,153.
Description adapted from Wikipedia, CC BY-SA 4.0.
Williamson County at a glance
- County seat
- Marion
- Population
- 67,153 (2020)
- Land area
- 444 sq mi
- Founded
- 1839
Largest communities in Williamson County
- Marion County seat16,855
- Herrin Precinct14,731
- Herrin12,352
- West Marion Precinct11,722
- East Marion Precinct10,471
History of Williamson County
Williamson County was formed from Franklin County on February 28, 1839, and was named for Williamson County, Tennessee. Many of its settlers were from the Uplands South, traveling via the Ohio River from Kentucky and Virginia. It became a center of coal mining, attracting numerous European immigrants in the late 19th and early 20th centuries. Labor tensions rose as workers sought to unionize and improve their wages and conditions. Mine owners resisted and several episodes of violence resulted during strikes and other work actions. Williamson County is often referred to as "Bloody Williamson," due to several outbreaks of violence that have few parallels in American history.
Adapted from Wikipedia, CC BY-SA 4.0.
Start here
Confirm you're ready to vote in Williamson County
-
01
Run a guided check
Scan Check Protect walks you through verifying your Illinois registration and flags anything that needs fixing — free.
-
02
Ask Williamson County directly
Your county election office handles registration, mail ballots, and polling places.
Official channels
Williamson County election resources
Statewide tools and every Illinois resource in one place: the Illinois page at Scan Check Protect →
Neighboring counties
Part of Illinois Voter Check
This is the Williamson County page of Illinois Voter Check, a project of True the Vote, pointing Illinois 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 the Illinois State Board of Elections publishes, they are right and this page is not.