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Contra Costa County, California

Courts, legal aid, and legal guides in Contra Costa County.

Contra Costa County is in the East Bay (Bay Area metro), with Martinez as the county seat. The Contra Costa County Superior Court handles civil, criminal, family, and juvenile matters under California's countywide Superior Court structure.

Contra Costa County guided help

Start with the issue, then route locally.

Use this when you know the legal issue is in or near Contra Costa County. FlowLawyers can keep the path grounded in California, then point you toward courthouse information, legal aid, attorney search, or a guided workflow.

Use only the minimum details needed. This is not legal advice.

Local anchors

Courthouse in Martinez. Legal aid by county. Attorneys by issue.

County pages work best when geography matters: court location, local legal-aid coverage, nearby cities, and attorney search for the same state.

Courthouse

Contra Costa County Superior Court

725 Court Street, Martinez, CA 94553

Contra Costa County Superior Court (California)