Audrain County Courthouse | Mexico, Missouri

Welcome to Audrain County, Missouri!

Located in central Missouri, Audrain County is a mix of productive farms, rural enterprises, manufacturing companies, biofuel refining, education and the best of mid-western towns.  Known as the Bio-Fuel Capital of Missouri, Audrain county has become a leader in this rapidly growing industry.

In addition, Audrain County and the City of Mexico have welcomed the Missouri Plant Science Center to our region.  The Plant Science Center is a joint venture between the University of Missouri-Columbia, the Missouri Technology Corporation, the City of Mexico and applied industrial agricultural companies. It is anchored by a research-driven private nutraceutical company supplying next generation soy-based ingredients for health science products.

Audrain County has approximately 26,000 people in eight municipalities. Our largest town, Mexico, population 11,320, is the county seat.  Governance of Audrain County is performed by a County Commission.


Absentee ballots for the November 8th General Election are now available at the County Clerk’s office.

You may vote absentee in the County Clerk’s office Monday – Friday from 8:00 a.m. until 5:00 p.m. The last day to vote by absentee ballot IN PERSON is Monday, November 7, at 5:00 p.m. The County Clerk’s Office will be open Saturday, November 5, 2016, from 8 a.m. until noon.

If you are requesting an absentee ballot to be mailed the request must be received no later than 5:00 p.m. Wednesday, November 2, 2016.

Ballots MAY NOT be requested by phone, a signature is required.

The last day to register and be eligible to vote in the November 8 general election is Wednesday, October 12, 2016.

For further information concerning absentee ballots or voter registration contact the County Clerk’s office at (573) 473-5820.

Please Note: This is a combined ballot of all races and issues for the county. Please refer to your Voter Identification card for your U.S. Representative District (4 or 6) and your County Commission District (East or West).

View Sample Ballot:  Sample Ballot for November 2016 Election (PDF)