Bay Point, California: Not a City, But a Community in Contra Costa County

If you're looking for the "Bay Point Historical Society" in a city called Bay Point, California—there isn't one. Bay Point is an unincorporated census-designated place (CDP) in Contra Costa County, not an independent municipality.

Where Is Bay Point?

• Location: Southern shore of Suisun Bay (part of San Francisco Bay estuary).
• Between: Concord (southwest) and Pittsburg (northeast).
• Highway Access: CA-4 (California Delta Highway) runs through it; BART's Pittsburg/Bay Point Station is the terminus of the Yellow Line.
• ZIP Code: 94565.
• Population: ~21,000 (2020 Census).

Historical Society? Look to Pittsburg or Contra Costa County

Since Bay Point is unincorporated, it doesn't have its own historical society. Relevant organizations include:

• Pittsburg Historical Society & Museum – 510 Harbor St, Pittsburg, CA 94565. Covers the broader area including Bay Point (formerly Port Chicago).
• Contra Costa County Historical Society – 610 Main St, Martinez, CA 94553. County-wide archives.
• Port Chicago Naval Magazine National Memorial – Managed by NPS; commemorates the 1944 explosion that devastated the area (then called Port Chicago). This is the major historical site associated with Bay Point.

Name Change Note

The community was known as Port Chicago until 1968, when it was renamed Bay Point to avoid confusion with the Port Chicago Naval Magazine (and the tragic 1944 explosion). Older records refer to Port Chicago.

So, for Bay Point history: head to Pittsburg Historical Society or the Port Chicago Memorial. There is no "Bay Point Historical Society" in Bay Point—or anywhere else.