Level Up at Your Library Summer Reading June 2-August 2, 2025 Contra Costa County Library Summer Reading is here! Sign-up today. The game is on this summer at your library. […]
Pacific Gas and Electric Company (PG&E) is hosting an interactive webinar for customers in Contra Costa County on Tuesday, June 10 from 5:30 – 6:30 p.m. to share more about […]
Telephone: (925) 673-7300
Fax: (925) 672-4917
City Offices are located at:
Clayton City Hall
6000 Heritage Trail, Clayton, CA 94517
Staff is available during our office hours:
Monday to Thursday 9:00 a.m. to 5:00 p.m.
Friday 9:00 a.m. to 3:00 p.m.
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