 In February 1838, the newly-formed Liberty Township included Auxvasse as a key town in its eastern sector for nearly 40 years; but when the newer Jackson Township was created in December 1875, Auxvasse was included instead in its western half, where it remains to this day as its largest population center.Auxvasse is located in the northern part of the county on US Route 54 between Mexico to the north and Kingdom City to the south.According to the United States Census Bureau, the city has a total area of , all land.