Ravanna is an unincorporated community and census-designated place (CDP) in Mercer County, Missouri, United States. It is located 8 mi northeast of Princeton on U.S. Route 136. The population was 60 at the 2020 census, down from 98 in 2010. Ravanna was platted in 1857. A variant name was "Sonoma". A post office called "Sonoma" was established in 1855, the name was changed to Ravanna in 1858, and the post office closed in 1975. The present name most likely is a transfer from Ravenna, Ohio.

Education

The northern half is in the North Mercer School District, including the main townsite, while other parts are in the Princeton R-5 School District. The community was previously part of the Ravanna R-IV School District until the school closed in 1977 due to financial problems. Ravanna's mascot was the Ranger.

Demographics