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Ysidora

Ghost town · San Diego County, California

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

Ysidora is a ghost town in San Diego County, California. It is one of 19 former communities in San Diego County on the federal names register. That ranks the county 12th among the 58 California counties with a vanished settlement on record.

The U.S. Geological Survey lists Ysidora as a historical populated place on the Morro Hill topographic quadrangle: 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 33.2598° N, 117.3636° W.

Key facts

USGS quadrangleMorro Hill
Elevation34 ft
Nearest living townCamp Pendleton South, CA
Distance to it2.5 miles
GNIS feature ID1703678
Coordinates33.25976, -117.36365

Open the location on a map

What's there now

Ysidora is no longer a community in its own right. The nearest living town is Camp Pendleton South, CA (population 15,011), about 2.5 miles away in a straight line, and the site sits at roughly 34 feet above sea level. Much of the land around former townsites is private; check access before you visit.

Nearby places

Questions

Where is Ysidora?

Ysidora is in San Diego County, California, at 33.2598, -117.3636.

How many ghost towns are in San Diego County?

San Diego County, California has 19 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.