Notice: County Courthouse Offices will be closed Thursday, December 25th and Friday, December 26, 2025 for Christmas. Call ahead for individual office hours on Wednesday, December 24th.

Jefferson County 2024 General Election results: https://electionresults.iowa.gov/IA/Jefferson/122373/

Notice: County Courthouse Offices will be closed Memorial Day, Monday, May 25, 2026.

Notice: County Courthouse Offices will be closed New Year's Day, Friday, January 1, 2027.

Notice: County Courthouse Offices will be closed Monday, February 15th, 2027 for President's Day.

Notice: County Courthouse Offices will be closed Friday, July 3rd, 2026 in observance of Independence Day.

Notice: County Courthouse Offices will be closed Monday, September 7th, 2026 for Labor Day.

Notice: County Courthouse Offices will be closed Wednesday, November 11th, 2026 for Veterans Day.

Notice: County Courthouse Offices will be closed Thursday, November 26th and Friday, November 27, 2026 for Thanksgiving.

Notice: County Courthouse Offices will be closed Friday, December 25th, 2026 for Christmas.

Permanent Polling Location Change: Fairfield 2nd Ward will vote at the County Engineer's Office, 901 N 8th St., Fairfield.

Permanent Polling Location Change: Fairfield 5th Ward will vote at the Friends Church, 1209 S. 6th St., Fairfield.