Castro Valley
Hours & Information
Closed until 10:00am today
Monday
12:00PM - 8:00PM
Tuesday
12:00PM - 8:00PM
Wednesday
10:00AM - 6:00PM
Thursday
10:00AM - 6:00PM
Friday
Closed
Saturday
10:00AM - 5:00PM
Sunday
1:00PM - 5:00PM
3600 Norbridge Ave
Castro Valley, CA 94546
Main: (510) 667-7900
Email: castrovalley@aclibrary.org
Library Manager: Dawn Balestreri
Upcoming Events
Holidays and Closures
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Memorial Day HolidayMonday, May 25, 2026Closed All Day
-
Juneteenth HolidayFriday, June 19, 2026Closed All Day
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Independence Day HolidayFriday, July 3, 2026 - Saturday, July 4, 2026Closed All Day
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Labor Day HolidayMonday, September 7, 2026Closed All Day
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Veterans Day HolidayWednesday, November 11, 2026Closed All Day
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Day Before ThanksgivingWednesday, November 25, 2026Closes early: 5:00pm
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Thanksgiving HolidayThursday, November 26, 2026 - Friday, November 27, 2026Closed All Day
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Christmas EveThursday, December 24, 2026Closes early: 5:00pm
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Christmas Day HolidayFriday, December 25, 2026Closed All Day
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New Year's EveThursday, December 31, 2026Closes early: 5:00pm
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New Year's Day HolidayFriday, January 1, 2027Closed All Day
About Castro Valley
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- Accessible Library
- Ballot Drop Box
- Civics Corner
- Community Language Collection
- Computer Access (Laptops & Desktops)
- Free Parking, Bike Rack & Bike Locks
- Free WiFi
- Print, Scan, Fax (check with your library for current status)
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- Community Display Cases
- Friends of the Castro Valley Library
- Gallery Wall
- Local History Collection
Map
Explore Castro Valley Library's surroundings on a map.
New at Castro Valley
Recent News Posts
2026 年 Día 書籤設計比賽將於 4 月 1 日開始
Apr 01, 2026
The 2026 Día Bookmark Contest Begins April 1
Apr 01, 2026
AC Library Joins the West Coast’s Largest Book Club
Mar 20, 2026