Santa Ana Region - Regional Boundaries Map

Santa Ana Region - Regional Boundaries Map

Map of Santa Ana Region

Click on Map for full screen view

 

Click on Map for full screen view

 

The cities and municipalities that fall within the jurisdiction of the Santa Ana Regional Water Quality Control Board are listed by county below.

Cities Within Orange County

Anaheim Foothill Ranch Newport Beach
Anaheim Hills Fullerton Orange
Balboa/Balboa Island Garden Grove Placentia
Brea Huntington Beach Santa Ana
Buena Park Irvine Seal Beach
Corona Del Mar La Habra Stanton
Costa Mesa La Palma Sunset Beach
Cypress Laguna Hills Tustin
El Sobrante Lake Forest Villa Park
El Toro Los Alamitos Westminister
Fountain Valley Midway City Yorba Linda

 

Cities Within Riverside County

Beaumont Idyllwild Pedley
Calimesa Lake Elsinore Perris
Corona Lakeview Riverside
Edgemont Menifee Romoland
Glen Avon Mira Loma Rubidoux
Glen Ivy Moreno Valley San Jacinto
Hemet Norco Sun City

 

Cities Within San Bernardino County

Barton Flats Fawnskin Ontario
Big Bear City Fontana Rancho Cucamonga
Big Bear Lake Forest Falls Redlands
Bloomington Glen Helen Rialto
Chino Highland Rim Forest
Chino Hills Loma Linda Running Springs
Colton Lytle Creek San Bernardino
Crafton Hills Mentone Upland
Crestline Mill Creek Yucaipa
Devore Montclair