US Facts       Footsteps of History       It Happened Here      
Mottos, Slogans and Nicknames       Noted Notables


Welcome To KEY TO THE CITY's Page For
Castro Valley
Alameda County, California

94546, 94552

Page Contents for Castro Valley, California

Statistics & Facts


History & History-related items

City Attractions


Chamber of Commerce.

Community news

Organizations, Churches, and Sports.




Statistics & Facts

The California state capital is Sacramento.
The population of Castro Valley is approximately 57,219 (2000), 61388 (2010).
The approximate number of families is 19,682 (1990), 22348 (2010).
The amount of land area in Castro Valley is 34.343 sq. kilometers.
The amount of land area in Castro Valley is 15.8 sq. miles.
The amount of surface water is 0.267 sq kilometers.
The distance from Castro Valley to Washington DC is 2556 miles.
The distance to the California state capital is 64 miles. (as the crow flies)
Castro Valley is positioned 37.71 degrees north of the equator and 122.06 degrees west of the prime meridian.
Castro Valley per capita income is 20,307.
Castro Valley median income is $ 54,934.


13 miles south of Oakland; 27 miles southeast of San Francisco. Here is a map page for Castro Valley.
Return to Index

History & History Related Items

A history page for Castro Valley.

The early inhabitants of the area were the Costanoan Indians. Castro Valley was named for Don Guillermo Castro who settled in the area in the 1800's. He was a soldier and a surveyor with the Mexican army in the area. He received a land grant of 27,000 acres. The area covers what is now Castro Valley and Hayward.
Return to Index


Learn more about Castro Valley at this informative site.

Things to do in Castro Valley.
Return to Index

Castro Valley City Government

Castro Valley receives its public safety services from the County of Alameda. You can contact the County Sheriff at (510) 667-7721 or 9-1-1 for emergencies

Castro Valley Municipal Advisory Council
advisory body to the county supervisor.

Alameda County homepage.

County Administration Building
1221 Oak Street
Oakland, CA 94612

Castro Valley Community Center
18988 Lake Chabot Rd.
Castro Valley, California 94546-2932
Phone: 510-881-6737

Hayward Area Senior Center
22325 N 3rd St
Castro Valley, CA 94546-6903
Phone: 510-881-6766

Castro Valley Chamber

Castro Valley Chamber of Commerce
3467 Castro Valley Blvd
Castro Valley, CA 94546
Phone: 510-537-5300

Castro Valley Community News

Somewhere, there is a student who needs your help
SIB pairs students with individuals from various cultural and professional backgrounds in one-to-one mentoring relationships. The mentors help the students broaden their views, guide them to challenging and rigorous course work, help the students keep the vision of opportunity that exits for them and motivate them to persevere in the midst of many distractions. Mentors spend approximately 4-6 hours/month with their student over a 10-month period. The mentoring programs are currently taking place in Alameda and Contra Costa counties. Please join the wonderful team of current mentors who share three gifts among other things: Time, Trust and Friendship, and make a difference in the life of a student. Currently, we have 600 students waiting to get matched with a mentor.
For Information, call Kathy Morrison at 1-888-232-6368 (toll-free) or visit our website at

Castro Valley Organizations

Castro Valley Chamber of Commerce
3467 Castro Valley Blvd
Castro Valley, CA 94546
Phone: 510-537-5300

Castro Valley Libraries

Castro Valley Library
20055 Redwood Rd.
Castro Valley, CA 94546
Phone: (510) 670-6280
TDD (510) 881-2863

Alameda County Library

Castro Valley Schools

Canyon Middle School

Castro Valley High School
19400 Santa Maria Ave.
Castro Valley, CA 94546-3400
Phone: 510-537-5910

Castro Valley Unified District
4400 Alma Ave
Castro Valley, CA 94546-3104
Phone: 510-537-3000 Castro Valley


Castro Valley is currently the largest un-incorporated community in the State of California.

The population of Castro Valley was:
1997 - 48,619
2000 - 57,219

Contribute information for this community or any other community on the Key To TheCity website

Be sure to include the name of the community and its state when contacting Key to the City as you are NOT directly contacting this community.

Thanks for visiting Key to the City. Come back again! Soon!

The information on Key to the City is from multiple sources including government, commerce, libraries, individuals and organizations. There is no guarantee of the accuracy or timeliness of the information presented on these pages, therefore, please use at your own risk.

Search Key to the City
Custom Search
or Search anywhere on the Web
Custom Search