Eolia is a village in Pike County, Missouri, United States. The population was 522 at the 2010 census. Eolia was platted in 1881 along the railroad line. The community was named for Aeolus, the ruler of winds in Greek mythology, because the day on which the surveying was done was one of the windiest the surveyor had ever seen.. A post office called Eolia h…Eolia is a village in Pike County, Missouri, United States. The population was 522 at the 2010 census. Eolia was platted in 1881 along the railroad line. The community was named for Aeolus, the ruler of winds in Greek mythology, because the day on which the surveying was done was one of the windiest the surveyor had ever seen.. A post office called Eolia has been in operation since 1881.