Hammil Valley is an unincorporated community in Mono County, California.

[1] It is located 9 miles (14 km) west-northwest of White Mountain Peak.

[3] The Hammil brothers (William, Hugh, and Robert) homesteaded at the site in 1870.

[3] The Carson and Colorado Railroad built a train station in 1883 and named it after the brothers.

[3] Today, most of the residents of Hammil Valley go to school or work in Bishop.