Napa County Jail is part of the Napa County Department of Corrections complex at 2210 Napa Vallejo Highway, Napa, CA 94558. The department is responsible for the institutional care, treatment, and rehabilitation of incarcerated persons housed at the facility.
The jail facility phone number is (707) 253-4401. The Corrections section of the Napa County website provides custody information, visitation guidance, and incarcerated-person mail procedures.

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