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 Green, Indiana Etna Green, Indiana Etna Green is a town in Etna Township, Kosciusko County, in the U.S. state of Indiana. The population was 586 at the 2010 census. Etna Green was laid out in 1853. It took its name from Etna Township. The Etna Green post office was established in 1854. Etna Green is located at (41.277545, -86.047629). According to the 2010 census, Etna Green has a total area of , all land. As of the census of 2010, there were 586 people, 219 households, and 159 families residing in the town. The population density was . There were 245 housing