Audrain County has approximately 26,000 citizens in eight municipalities. Our largest community of Mexico has a population of 11,320 and it is also the county seat. Governance of Audrain County is performed by a County Commission.

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.

Recognized as the Biofuel Capital of Missouri, Audrain County is an established 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.