CERRO OFFICES
Offices closed September 1, 2025 for Labor Day
San Luis Obispo County
1150 Laurel Lane
San Luis Obispo, CA 93401
Telephone 805.250.0225
Email [email protected]
Hours of Operation
Mon: 9 AM - 4 PM
Tues: 9 AM - 4 PM
Wed: 9 AM - 4 PM
Thur: 9 AM - 4 PM
Fri: 9 AM - 2 PM
Sat: Closed
Sun: Closed
Office Updates - Last Revised September 2025
Our SLO office is closed for building renovations. Expected Reopen Rate: October 2025
Santa Barbara County
1125 Clark Avenue
Santa Maria, CA 93455
Telephone (805) 904-0807
Facsimile (805) 244-0003
Email [email protected]
Corporate & Recruiting Division Office
Hour of Operation
Mon: 9 AM - 3 PM
Tues: 9 AM - 3 PM
Wed: 9 AM - 3 PM
Thur: 9 AM - 3 PM
Fri: Closed
Sat: Closed
Sun: Closed
MAILING ADDRESS
Cerro HR
Post Office Box 184
Pismo Beach, CA 93448-0184
Cerro HR Administrative Services
Post Office Box 5333
Santa Maria, CA 93456-5333
© 2025 Castaneda & Erdman, LLC and Affiliates. All Rights Reserved. Cerro HR, a Compass Business Services Company.