MuseumNo live deal currentlyWHAT'S ON
Photo from the venue's own site
Museum
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The Contra Costa County Historical Society operates the History Center in downtown Martinez, where visitors research family history, genealogy, property records, and local history. The archives contain newspapers and clippings, photographs, maps, books, government records, court files, and family papers spanning Contra Costa County's past. The collection includes tax assessor books from 1850 through 1910, county supervisor and treasurer records, and school board documents. Visitors use the PACT computer search tool to explore more than 300,000 records, photos, maps and historical documents. The center also accepts donations of photographs, letters and documents from residents and former residents for potential addition to the collection. Staff and volunteers assist with research requests. The History Center is housed in historic downtown Martinez and welcomes the public during regular business hours. Appointments are recommended for research visits to ensure appropriate staff assistance.
Hours: Tuesday, Wednesday and Thursday 9 a.m. to 4 p.m.; 1st and 3rd Saturdays of the month 10 a.m. to 2 p.m.
Details quoted from cocohistory.org · read on . Prices can change — the link above goes to the page they came from.
One reason to go, each in the venue’s own words, with the date we checked it.
Oct 17Event
The History Center hosts an open house to celebrate American Archives Month on October 17, 2026. Families can visit and learn about the organization's archives and historical collections.
Check event details and ticket requirements with the venue.
“October 17, 2026 Open House at the History Center in celebration of American Archives Month”
Contra Costa County Historical Society publishes its own offers, and when cocohistory.org was last read, on , there was none.
The page stays here because the attraction is still worth knowing about, and because we keep checking. If a deal appears on their site, it appears here.
See cocohistory.org for yourself →
Martinez
Mon–Wed: Closed; Thu: 4:00 – 8:00 PM; Fri: 4:00 – 9:00 PM; Sat: 12:00 – 9:00 PM; Sun: 12:00 – 5:00 PM
Hours via Google Maps
5 miMartinez
Mon, Tue & Thu: 10am - 10pm, Wed: 10am - 11pm, Fri - Sat: 10am - 11:30pm, Sun: 10am - 9pm
2 miOct 18 · Cars, Kids & Coffee October
Martinez
3rd Sunday of every month, 10am — 3pm
2 miMartinez
Tuesday through Saturday from 10:00 AM – 5:00 PM
Within 25 miles of Contra Costa County Historical Society. Dates and wording are each venue’s own.
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