ZIP Code 94583

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Who represents ZIP code 94583 in Contra Costa County, California: Rebecca Bauer-Kahan (Democrat) (Assembly District 16), Timothy S. Grayson (Democrat) (Senate District 9) and Mark DeSaulnier (Democrat) (Congressional District 10).

Your representatives

• Assembly District 16State Assembly · Rebecca Bauer-Kahan (Democrat)
• Senate District 9State Senate · Timothy S. Grayson (Democrat)
• Congressional District 10U.S. House (2021 map, through Jan. 2, 2027) · Mark DeSaulnier (Democrat)
• Congressional District (Prop 50 map) 10U.S. House (Prop 50 map, from Jan. 3, 2027) · Not yet seated
• Alex Padilla (Democrat)U.S. Senator for all of California
• Adam Schiff (Democrat)U.S. Senator for all of California

County government

• Contra Costa CountyCounty website · Board of Supervisors

Based on the Census Bureau's 2020 ZIP Code Tabulation Areas, which approximate USPS ZIP codes.