Jan. 14, 2022, is the last day to apply for voter registration to be eligible to vote in Feb. 8, 2022, City of Okmulgee Municipal Primary Election, Okmulgee County Election Board Secretary Ashley Carnes said this week. Persons who are United States Citizens, residents of Oklahoma, and at least 17 ½ years old are eligible to apply for voter registration, Carnes said. However, you must be at least 18 years old to vote.