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(949) 631-5918 Thursday - Friday 10am - 3pm

Costa Mesa Historical Society

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Mailing Address

PO Box 1764
Costa Mesa, CA 92628

Museum and Headquarters

1870 Anaheim Ave.
Costa Mesa, CA 92627
Tel: (949) 631-5918
10am-3pm, Thursday-Friday or by appointment.

Diego Sepulveda Adobe

1900 Adams Ave.
Costa Mesa, CA 92626
12pm-4pm, 1st & 3rd Saturday of each month

The Costa Mesa Historical Society

The Costa Mesa Historical Society is a non-profit 501(c)(3) and is a member of the Conference of California Historical Societies, the National Trust for Historic Preservation, and the American Association for State and Local History.

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