Ravanna, MO

Ravanna is a census-designated place in Mercer County, Missouri, counted at 60 residents in the 2020 Census. The State Historical Society of Missouri records that William R. McKinley and Addison Sparks laid out the place in 1857. Its post office was first called Sonoma; the later name came through the McKinley family, who had roots in Ohio. Ravanna's mapped identity carries a settlement story shaped by founders, a renamed post office, and the county's early town-building period.