Location in Brevard County and the state of Florida
Mims is located at(28.668670, -80.847949).
According to the United States Census Bureau, the CDP has a total area of 22.4 square miles (57.9 km2), of which 17.0 square miles (44.1 km2) is land and 5.3 square miles (13.7 km2), or 23.71%, is water.
Harry T. Moore, a civil rights leader, teacher and founder of the Brevard County NAACP, was murdered in Mims with his wife, Harriette, in 1951. The murder was racially motivated by members of the Ku Klux Klan, sparking over a 50-year investigation in the state of Florida.