Marshall is located on the east shore of Tomales Bay. It has a population that is unknown.[6] It is located approximately 15 mi (24 km) southeast of Bodega Bay, on State Route 1. Its ZIP code is 94940.
The town is named after the Marshalls, four brothers who set up a dairying industry there in the 1850s. Starting in the 1870s, Marshall was a stop on the North Pacific Coast Railroad connecting Cazadero to the Sausalito ferry.
^Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 660. ISBN1-884995-14-4.