MCE’s service area includes all of Marin and Napa Counties, unincorporated Contra Costa County, and the cities of Benicia, Concord, Danville, El Cerrito, Lafayette, Martinez, Moraga, Oakley, Pinole, Pittsburg, Richmond, San Pablo, San Ramon, and Walnut Creek.

Marin County includes Belvedere, Corte Madera, Fairfax, Larkspur, Mill Valley, Novato, Ross, San Anselmo, San Rafael, Sausalito, Tiburon, and the County of Marin. The County of Marin also includes unincorporated areas located outside of the boundaries of any of Marin County’s 11 cities and towns.