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Office Fax

Contra Costa County • District 1 Supervisor John M. Gioia • El Cerrito, Contra Costa County, California
Office Fax
510-374-3429
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Agency
Contra Costa County
Section
County Board of Supervisors - District 1 Supervisor John M. Gioia
Department
County Board of Supervisors
Office
District 1 Supervisor John M. Gioia
Location
El Cerrito, Contra Costa County, California
Last Checked
June 3, 2026

Verification & trust

Status Verified
Last verified June 3, 2026
Confidence 0.98

What this fax number is for

District 1 Supervisor John M. Gioia

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Source and verification

Fax
Added June 1, 2026

Fax: 510-374-3429

View Source Confidence: 0.98
Fax
Added June 1, 2026

Fax: 510-374-3429

View Source Confidence: 0.97
Office Fax
Added June 1, 2026

Fax: 510-374-3429

View Source Confidence: 0.95
Office Fax
Added June 1, 2026

Fax: 510-374-3429

View Source Confidence: 0.95
Quick facts
Type FaxNumber
Agency Contra Costa County
Label Office Fax
Fax Number 510-374-3429
About this listing
This listing is meant to help users confirm the correct fax destination before sending documents.
Verified Checked Jun 3, 2026