October 19, 2026, is the last day to register to vote with the County Clerk before the General Election (if you are voting absentee in person after October 19th you can register and vote in the Election Department). You can also register and vote on the day of the General Election at your polling place. (Source: Campbell County Elections)​​​​​​​​​​​​​​

​

To register to vote, you must be at least 18 years of age by the day of the next election, a U.S. citizen, a bona fide resident of Campbell County, Wyoming as determined in accordance with W.S. 22-1-102(a)(xxx), has been a bona fide resident of Wyoming for not less than thirty (30) days before the date of the next election. No person may be registered to vote who has been adjudicated mentally incompetent, or who has been convicted of a felony, and his/her civil rights have not been restored. When registering to vote you will need to bring acceptable identification and proof of Wyoming residency of at least thirty (30) days prior to the next election