Atchison is a former settlement in Contra Costa County

Contra Costa County, California

Contra Costa County is a primarily suburban county in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, it had a population of 1,049,025...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. It was located 1 miles (1.6 km) southeast of Richmond

Richmond, California

Richmond is a city in western Contra Costa County, California, United States. The city was incorporated on August 7, 1905. It is located in the East Bay, part of the San Francisco Bay Area. It is a residential inner suburb of San Francisco, as well as the site of heavy industry, which has been...

. Its site has now been incorporated by Richmond. The town was most noted as the local headquarters of the Atchison, Topeka, and Santa Fe Railroad, after which it was named.

A post office operated at Atchison from 1903 to 1911.