Glencoe, California

Glencoe (formerly, Mosquito and Mosquito Gulch) is an unincorporated community in Calaveras County, California. It lies at an elevation of 2,749 feet (838 m) and is located at 38°21′15″N 120°35′06″W.^[1] The community's ZIP code is 95232. Glencoe has a population of 145 people. Glencoe was named after Glencoe, Scotland, the site of the Massacre of Glencoe in 1692.

CountryUnited States

Elevation

^[1]

2,749 ft (838 m)

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Glencoe
Unincorporated community
Glencoe Location in California Show map of California Glencoe Glencoe (the United States) Show map of the United States
Coordinates: 38°21′15″N 120°35′06″W
Country	United States
State	California
County	Calaveras County
Elevation [1]	2,749 ft (838 m)
California Historical Landmark
Reference no.	280

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Glencoe was formerly called Mosquito, and Mosquito Gulch. ^[1] The business portion of the town was on the north side of Mosquito Gulch, but not one of the old buildings remains. Currently (As of August 2025) only 2 businesses remain open in the town, as well as a USPS Post Office and a fire station. The mines were first worked by Mexicans in the early 1850s. Quartz mining predominated but there was some placer mining as well. No mining takes place within the town anymore.

The town today is registered as California Historical Landmark #280.^[2]

The first post office was opened at Mosquito in 1858 but closed in 1869; it was re-established as Mosquito Gulch in 1873. The name was changed to Glencoe in 1912; the post office closed again in 1916, but was re-established in 1947.^[3]