Etna, Minnesota Greenleafton. Nearby places in Iowa include Chester and Lime Springs. Etna is located 5 miles east of Ostrander; and 4 miles west of Cherry Grove. Forestville Mystery Cave State Park is also nearby. Etna, Minnesota Etna is an unincorporated community in Bloomfield Township, Fillmore County, Minnesota, United States. Etna is located within ZIP code 55975 based in Spring Valley. A post office previously operated in the community of Etna from 1856 to 1901. The community was named for Mount Etna, on Sicily. The community is located 8 miles southeast of Spring Valley, at the junction of Fillmore County 14 and
Etna, Missouri Etna, Missouri Etna is an unincorporated community in Scotland County, Missouri, United States. It lies at an elevation of 755 feet (230 m). The first settlement at Etna was made as early as 1855 by a colony of Germans. Etna, named for the Sicilian volcano, was surveyed and laid out in April, 1865 by Andrew Hunt. Etna was the site of a small skirmish during the early days of the Civil War. On July 21, 1861, the 1st Northeast Missouri Home Guards under Colonel David Moore, with assistance of additional units from Iowa and Illinois, attacked pro-Confederate Missouri State Guard