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Mormon Island

Ghost town · Sacramento County, California

Folsom quadrangle, USGS topographic map (1941, 1:62,500)
Folsom quadrangle, USGS topographic map (1941, 1:62,500) · U.S. Geological Survey, Historical Topographic Map Collection · Public domain

Mormon Island is a ghost town in Sacramento County, California, recorded as human settlement in United States of America. It is one of 13 former communities in Sacramento County on the federal names register. That ranks the county 25th among the 58 California counties with a vanished settlement on record.

The U.S. Geological Survey lists Mormon Island as a historical populated place: the name is no longer in official use for a community, whether the settlement was abandoned, absorbed into a neighbouring town or renamed. The recorded location is 38.7035° N, 121.1174° W.

Key facts

Nearest living townFolsom, CA
Distance to it2.9 miles
Coordinates38.70350, -121.11740

Open the location on a map

What's there now

Mormon Island is no longer a community in its own right. The nearest living town is Folsom, CA (population 82,140), about 2.9 miles away in a straight line. Much of the land around former townsites is private; check access before you visit.

Nearby places

Questions

Where is Mormon Island?

Mormon Island is in Sacramento County, California, at 38.7035, -121.1174.

How many ghost towns are in Sacramento County?

Sacramento County, California has 13 ghost towns on record at Wayfarrow.

Sources and licences

Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.