Contact Information

Floodplain Management Agencies

For more information, including whether or not your home is in a Special Flood Hazard Area and how to protect your home from flooding, please contact one of the following Floodplain Management Agencies: 

*Please note that the County's Floodplain Management Program covers unincorporated County areas only*

Unincorporated Contra Costa County
Phone: (925) 646-1623
Public Works 

Federal Emergency Management Agency (FEMA) Region IX
Phone: (510) 627-7100

California Department of Water Resources
Phone: (916) 341-5250

City / Town
Phone Number
City of Antioch(925) 779-7035
City of Brentwood(925) 516-5405
City of Clayton(925) 672-9700
City of Concord(925) 671-3092
Town of Danville(925) 314-3310
City of El Cerrito(510) 215-4330
City of Hercules(510) 799-8247
City of Lafayette(925) 299-3247
City of Martinez(925) 372-3569
Town of Moraga(925) 888-7092
City of Oakley(925) 625-7003
City of Orinda(925) 253-4253
City of Pittsburg(925) 252-4963
City of Pleasant Hill(925) 671-5261
City of Richmond(510) 620-6868
City of San Pablo(510) 215-3030
City of San Roman(925) 973-2670
City of Walnut Creek(925) 943-5834