Coordinates: 37°53′34″N 121°51′14″W / 37.89278°N 121.85389°W
Marsh Creek Springs is an unincorporated community in Contra Costa County, California. It lies at an elevation of 584 feet (178 m). It consists of approximately 2 by 8 blocks along Marsh Creek Road southeast of Clayton. The town is named for Marsh Creek, a local stream. The ZIP Code is 94517. The community is inside area code 925. It is named after John Marsh.
- ^ U.S. Geological Survey Geographic Names Information System: Marsh Creek Springs, California
- ^ Indian Exploitation in Contra Costa, by A. F. Bray, Station KLX, Oakland, California Number 42, Broadcast, February 15, 1937, retrieved March 17, 2008