[1] The Smith's Flat post office opened in 1876 and was renamed to Smithflat in 1895.

[2] The name honors Jeb Smith, a rancher who settled here early.

[2] Smithflat was one of the 93 wagon train stops along the Johnson Pass route across the Sierra Nevada.

The Smith Flat House, built in the 1850s, is the last of these stations still in existence.

This El Dorado County, California–related article is a stub.