Green Castle

HISTORICAL POPULATED PLACE · IOWA

A historical populated place in Johnson County, Iowa, recorded by the U.S. Geological Survey's Geographic Names Information System.

Location Record

Name: Green Castle
Feature Type: Populated Place (historical)
State: Iowa
County: Johnson County
USGS Map: Swisher
Coordinates: 41.7744558, -91.6662849
Show on archive map
GNIS Feature ID: 465429

Names and historical notes

Recorded by GNIS. Source wording is retained; these notes have not been independently verified by Forgotten America.

GNIS historical note

Now partly inundated in water IA-T5/p.93

Source editions and recorded citations

Feature ID 465429. Description/History extract: August 28, 2026. All Names extract: September 30, 2026. Retrieved October 22, 2026. Only populated fields are displayed.

GNIS citation text may identify a source series rather than a specific page. It is reproduced below without implying that its underlying documents were inspected.

Text Citation Unknown

GNIS source datasets and documentation

Source: U.S. Geological Survey Geographic Names Information System (GNIS), Historical Features.