Promoting and Preserving Costa Mesa History since 1966

January Event: The LAB and Other Unique Places created by Linda Sadeghi

The LAB stands for “Little American Business” and that’s exactly who Linda Sadeghi strives to support. The LAB began its journey to combat retail monotony in 1993 when it was...
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Fairview Register November/December 2022

Our November/December 2022 newsletter is now online! This edition includes "Movie Memories From the Past" by Mari Page, an excerpt from the January 1983 Costa Mesa Historical Society Quarterly, as...
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New Historic Homes Calendar

Renee Pina has produced another Historic Homes calendar, this time featuring the city's most historic properties. In fact, most of the properties are eligible for the city's historic register. Each...
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Diego Sepulveda Adobe Reopening

The grand reopening of the Diego Sepulveda on October 1st also celebrated this historic structure's 200th birthday. Mayor John Stephens and Orange County Supervisor Katrina Foley spoke a few words...
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Interactive Map Featuring Orange County Historic Sites

Last year, Preserve Orange County launched an interactive map featuring historic sites throughout the county. From their website: "What's on the map? The map includes all sites that are designated...
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Peggy Gardner Display

  We have a new display at the museum! Peggy Gardner was a long-time friend of the Historical Society and a wonderful artist. To highlight Peggy's talent and honor her...
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As some of you may have already noticed, we're updating our online gift shop! There are still many more items to be uploaded, so be sure to keep checking back...
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Learn about 5,000 years of history –from the first peoples to the City of the Arts – at our two museums in Costa Mesa.

Learn more about museums

Explore our vast collection of photographs, periodicals, maps, and more at the society’s museum and headquarters.

Explore historical resources

Discover the many ways you can do your part to preserve and promote Costa Mesa history.

Make your contribution

Learn about a wide variety of historical topics at our free talks throughout the year.

Learn more about upcoming talks 

Purchase books, memorabilia, and more at our online store.

Go shopping

Did you know that nearly one-fifth of Costa Mesa’s land area was once an important training center for our nation’s effort during World War II?

Discover SAAAB