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Drug and alcohol treatment (rehab) in California

1,297 treatment centers. Facilities whose SAMHSA listing includes substance use treatment (for alcohol, drugs or both), in any setting: outpatient, residential or hospital.

City lists

All 1,297 in California

Common questions

Drug and alcohol treatment (rehab) in California: how many are there?

SAMHSA’s FindTreatment.gov directory lists 1,297 treatment centers in California that match (77% of the 1,678 listed in the state). Facilities whose SAMHSA listing includes substance use treatment (for alcohol, drugs or both), in any setting: outpatient, residential or hospital.

Which cities in California have the most?

Los Angeles (91), San Diego (54), Sacramento (28), San Francisco (28) and Fresno (24).

All treatment centers in California Mental health treatment centersDetox centersResidential and inpatient treatmentTreatment centers that accept MedicaidTreatment centers that accept MedicareFree and low-cost treatmentTreatment centers with services in SpanishOpioid treatment programs (methadone clinics) Drug and alcohol treatment (rehab): all states Hospitals in California Addiction and mental health treatment centers

Source: SAMHSA, FindTreatment.gov (National Directory of Mental Health and Substance Use Treatment Facilities), retrieved 2026-11-11. SAMHSA publishes no separate release date for this live directory. The directory has no quality ratings, and this list is not a ranking or a recommendation. Methodology