City Hall Information Directory

• To send e-mail to the City of Sunnyvale, please use the Web Contact Form

• (Unless otherwise indicated, all City email addresses follow this format: name@ci.sunnyvale.ca.us with "name" being the department or answer point ID.)

For Detailed Information Click Below:

• List of Department Answerpoints
• Information beginning with the letters A-E
• Information beginning with the letters F-L
• Information beginning with the letters M-R
• Information beginning with the letters S-Z

Mailing Address - P.O. Box 3707 Sunnyvale, CA 94088-3707
Primary Street Address - City Hall, 456 West Olive Avenue, Sunnyvale, CA
Primary Telephone - (408) 730-7500
FAX - (408) 730-7699

Hours of Operation - Normal operating hours for most City offices are 8 a.m. to 5 p.m., Monday through Friday. However, the Public Works offices are located outside City Hall and are open from 6:30 a.m. to 4:30 p.m. weekdays. 

Any unscheduled closings of City offices due to emergencies will be announced on local radio stations. 

Automated Citizen Information System (SunDIAL) - (408) 774-0262