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is the county seat of Adair County, Missouri, United States. It is located in Benton Township. The population was 16,988 at the 2000 census. Kirksville also anchors a micropolitan area that comprises Adair and Schuyler counties. The city is perhaps best known as the location of Truman State University and A. T. Still University.
Kirksville is located at (40.19368958, -92.58285181).
According to the United States Census Bureau, the city has a total area of 10.5 square miles (27.2 km²), of which, 10.5 square miles (27.1 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.38%) is water.