List of All Counties in Missouri

There are a total of 114 counties in the state of Missouri. Among them, Cape Girardeau County is the oldest one (established in 1812) while Saint Louis City is the youngest (established in 1876).  With population of 1,000,438, Saint Louis County is the most populated. The biggest county by land area is Texas County (3,054 km²) and the smallest is Saint Louis City (160 km²). Below please see all Missouri counties which are listed in alphabetical order.

Map of Missouri Counties

Map of Missouri Counties