Drug Rehab Centers in Illinois

Cost Guide

How Much Does Drug Rehab Cost in Illinois?

Treatment costs vary widely depending on the type of program, length of stay, and insurance coverage. Below are typical ranges adjusted for Illinois.

Note: Treatment costs in Illinois typically run 15% above the national average.

Costs vary widely by facility, insurance coverage, and length of stay. Many facilities offer sliding-scale fees or accept Medicaid at no cost to the patient.

Medical Detox

Medical Detox in Illinois

Medical detox is the supervised withdrawal process that precedes formal rehabilitation. Programs typically last 3–10 days. In Illinois medically supervised detox runs $1,700–$12,000 per week depending on the substance and facility type, and 11 facilities in this directory list detox as a service.

Medicaid covers medical detox at participating Illinois facilities. Call 1-800-662-4357 for free referrals to detox programs near you.

About

Finding Drug Rehab in Illinois

This directory lists 1,030 SAMHSA-verified treatment facilities across 109 cities in Illinois. Facilities include outpatient programs, residential treatment centers, detox programs, medication-assisted treatment (MAT) providers, and mental health centers.

All facilities are listed in SAMHSA's National Survey of Substance Abuse Treatment Services (N-SUMHSS) and sourced from FindTreatment.gov. Use the city pages to filter by insurance type (Medicaid, Medicare, private insurance, self-pay), treatment setting, and special programs.

For immediate help, call SAMHSA's National Helpline: 1-800-662-4357 (free, confidential, 24/7).

Paying with insurance? See our insurance coverage guides for Medicaid, Medicare, and major private carriers to understand what's typically covered before you call a facility.

Not sure what to budget? Try our free rehab cost calculator to estimate your out-of-pocket cost by level of care and payment type.

Sources & References

Authoritative sources used on this page

Facility data on this page comes from SAMHSA (below). Cost, treatment-type, and insurance content elsewhere on the site draws on federal research and professional-society guidance:

• SAMHSA — Substance Abuse and Mental Health Services Administration. Primary facility data source (N-SUMHSS via FindTreatment.gov). samhsa.gov
• NIDA — National Institute on Drug Abuse (NIH). Evidence-based Principles of Drug Addiction Treatment and MAT guidance. nida.nih.gov
• NIAAA — National Institute on Alcohol Abuse and Alcoholism (NIH). Alcohol use disorder treatment protocols. niaaa.nih.gov
• ASAM — American Society of Addiction Medicine. ASAM Criteria (treatment placement standard) and clinical practice guidelines. asam.org
• CDC — Overdose Prevention. Overdose statistics and harm-reduction guidance. cdc.gov/overdose-prevention
• CMS — Centers for Medicare & Medicaid Services. Coverage rules and Mental Health Parity implementation. cms.gov
• HHS ASPE — Behavioral Health. Cost-of-treatment analyses by setting. aspe.hhs.gov/topics/behavioral-health

See About Our Data for full sourcing methodology and editorial standards.