Today, the Society holds a collection of 70,000 items ranging in age from pre-historic times through current times. The collection is in the process of being catalogued in a computer database. Monthly meetings are held featuring speakers on topics of interest. Society docents lead tours of our Museum and the Diego Sepulveda Adobe. Our library and archive materials are available to researchers, local organizations and people curious about any aspect of local history. The Society collaborates with local government and other groups to produce children's and other historical books and pamphlets. And fine art prints of our historic photographs adorn area homes, offices and retail businesses.
The Costa Mesa Historical Society is an all-volunteer group incorporated in the State of California as a non-profit organization having 501(c)3 status.