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California Drug & Alcohol Rehab and Detox Centers

  • 865 listed centers
  • 284 cities covered
  • 2026 California Drug & Alcohol Rehab Directory

865 licensed, federally listed drug and alcohol treatment programs across 284 California cities — 314 with medical detox, 308 with inpatient or residential rehab, and 613 offering outpatient care.

Popular California cities

Addiction Treatment Center Capacity in California

Federal data set
Treatment centers
865

Federally listed

Cities covered
284

across California

Medical detox
314

withdrawal management

Inpatient / residential
308

24-hour care

Outpatient programs
613

incl. IOP

Dual diagnosis
671

co-occurring care

Live CDC8,642 drug overdose deaths in California for the 12 months ending April 2026, 9.2% lower than a year earlier. See national and state trends.

How people pay in California

Of the 865 California centers listed, 533 report accepting private health insurance, 262 offer a sliding fee scale, 161 offer payment assistance, and 15 report no charge to the client — as reported to the federal treatment services survey (September 2026). Payment types only; call the center to confirm whether your coverage applies.

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FilterShowing all 865 centers
From our researchSee the full numbers ↓

36.2%

of centers offer detox
U.S. 19.6%

28.39

residential beds per 100k
U.S. 27.0

HAART

10850 MacArthur Boulevard, Suite 200, Oakland, CA 94605

Acamprosate

  • Medical Detox
  • Outpatient Program
  • Medication-assisted Treatment (MAT)
(510) 875-2300View profile

From our research

Detox Access and Residential Capacity in California

Detox access

310 of 856 federally listed centers in California (36.2%) report offering medically managed withdrawal, above the national share of 19.6% and 1st of 52 states and territories. In a typical California community with listed treatment, a detox program is in the same town.

Read the Detox Access Gap report →

Residential capacity

California reports 28.39 residential beds per 100,000 residents (11,195 beds at 514 programs) — close to the national figure, ranking 18th of 50. Reported occupancy was 84.7%, leaving more open space than most states (national average: 85.1%).

Read the Residential Capacity report →

Source: Treatment Locators analysis of federal facility directory and survey data. Figures describe the system as a whole, not any one center — call a center to confirm current services and openings.

State overview

Drug & Alcohol Detox and Rehab in California

If you or someone you love is struggling with drug or alcohol addiction, treatment is available in California. This directory lists 865 licensed, federally listed treatment programs across 284 California cities. Some of these programs focus on alcohol withdrawal, others on opioids, stimulants, or benzodiazepines, and many treat all of them alongside co-occurring mental health conditions.

Care in California spans the full continuum. Of the programs listed here, 314 provide medically supervised detox, 308 offer inpatient or residential rehab, 613 run standard outpatient programs, and 362 run intensive outpatient (IOP) programs. Detox is usually the first step: it stabilizes the body during withdrawal, but it is not a substitute for treatment. Most people move from detox into residential rehab or an outpatient program, where therapy, medication for addiction treatment, and relapse-prevention planning do the longer-term work.

Substance use and mental health problems frequently travel together. 671 California programs in this directory report treating co-occurring disorders such as depression, anxiety, PTSD, or bipolar disorder alongside addiction. Treating both at the same time — rather than one after the other — is the standard recommended by SAMHSA and is a reasonable question to ask any program before admission.

Many California facilities also tailor programming to specific groups. The most commonly reported specialties in the state are adults (751 programs), co-occurring disorders / dual diagnosis (630 programs), and trauma / ptsd (589 programs). 442 programs report offering services in Spanish.

Cost is the most common reason people delay treatment. Of the 865 California programs listed here, 533 report accepting private health insurance, 690 accept cash or self-payment, 262 offer a sliding fee scale based on income, and 161 report some form of payment assistance. 15 report providing services at no charge to the client. These figures come from what each facility reported to the federal treatment services survey (September 2026), which records payment types rather than named insurance carriers. Costs and accepted plans are set by each program and change often, so call the facility directly to confirm what it charges and whether your coverage applies.

Learn more: what medical detox involves, levels of addiction care, and withdrawal symptoms and timelines.

Common questions about treatment in California

How many treatment centers are there in California?

This directory lists 865 licensed treatment programs in California, drawn from the federal treatment services record (September 2026). Of those, 314 provide medical detox, 436 offer inpatient rehab or residential treatment and 613 run outpatient treatment.

What is the difference between detox and rehab in California?

Detox manages withdrawal safely and usually lasts a few days to a week; rehab is the treatment that follows, where therapy and medication address the substance use itself. Most people move from detox into inpatient rehab or an outpatient program, and the levels of care guide explains how each step works.

How much does treatment cost in California, and does insurance cover it?

Cost depends on the level of care and how long you stay, and federal parity law requires most plans to cover addiction treatment on the same terms as other medical care. In California, 533 of the 865 listed centers report accepting private health insurance and 262 report a sliding fee scale based on income. The federal record lists payment types rather than named carriers, so call the center to confirm your insurance coverage.

How long does addiction treatment last?

Medical detox typically runs three to seven days, residential treatment commonly runs 30 to 90 days, and outpatient treatment can continue for several months. Research summarized by the National Institute on Drug Abuse finds that staying in treatment for at least 90 days across all settings is associated with better outcomes.

What happens with withdrawal symptoms?

Withdrawal symptoms depend on the substance, how much was used, and for how long, and alcohol and benzodiazepine withdrawal can be medically dangerous without supervision. Our withdrawal timeline page sets out what typically happens day by day, and anyone with a history of seizures or heavy daily drinking should speak to a clinician before stopping.

Can treatment address mental health conditions too?

Yes — programs that treat co-occurring disorders address substance use and conditions such as depression, anxiety or PTSD at the same time, which SAMHSA identifies as the recommended approach. You can filter this directory for dual diagnosis treatment to see which California programs report providing it.

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All 284 California cities with a listed rehab or detox center.

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