Etna, Minnesota 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 153rd Avenue. U.S. Highway 63 is nearby. Etna Creek and the South Branch Root River both flow through the community. Nearby places in Minnesota include Spring Valley, Ostrander, Le Roy, Cherry Grove, and
Etna, New Hampshire Etna, New Hampshire Etna, originally named "Mill Village", is a small unincorporated community within the town of Hanover, New Hampshire, in the United States. It is located in southwestern Grafton County, approximately east of Hanover's downtown and south of the village of Hanover Center, on Mink Brook. Etna has a separate ZIP code 03750 from the rest of Hanover, as well as its own fire station, church, and library. The population within Etna's ZIP Code area was 870 at the 2010 census. Etna does not have a downtown or sidewalks, but commerce revolves around the Etna General Store and the