Alcohol & Drug Rehabs in Longmont, Colorado

Every rehab center in the Longmont directory is a licensed or accredited provider, and listings are organized to help you compare real options rather than to promote one facility over another. We prioritize programs that hold state licensure through the Colorado Behavioral Health Administration and independent accreditation from the Joint Commission or CARF, and we label any sponsored placement clearly so you always know what you are looking at.

Listing details reflect the levels of care, specialty tracks, and payment types each facility reports, drawn from public licensing records and facility information. Because openings and insurance participation change, confirm current availability and program specifics directly with a center when you reach out. The aim is to give you an accurate starting point for finding care close to home.

Longmont is the second-largest city in Boulder County, a working community in the St. Vrain Valley with a solid base of addiction treatment. The area has 12 rehab centers offering detox, inpatient, and outpatient care, and you can compare every nearby option through the Colorado rehab directory.

Mental Health Partners, the community behavioral health provider for Boulder and Broomfield counties, serves Longmont with outpatient therapy, medication-assisted treatment, and 24/7 crisis care. Public behavioral health for residents with Health First Colorado is coordinated by Colorado Community Health Alliance, the regional accountable entity for Boulder County, and Boulder County Public Health’s The Works program provides naloxone and harm-reduction outreach in Longmont.

Longmont shares Boulder County’s fentanyl-era overdose burden, and the county has invested opioid-settlement funds in prevention and treatment. Statewide, Colorado overdose deaths began falling in 2024, which makes fast access to fentanyl-aware treatment and naloxone especially valuable.

Crisis support: Call or text 988, or reach Colorado Crisis Services at 1-844-493-8255, available 24/7 regardless of insurance.

Health First Colorado: Coverage is coordinated by Colorado Community Health Alliance, the regional accountable entity for Boulder County.

Free naloxone: Boulder County Public Health’s The Works program provides free naloxone and test strips with Longmont outreach.

Insurance accepted: Most Longmont centers accept private insurance, Health First Colorado, and self-payment.

The cost of rehab in Longmont depends on the level of care, program length, and whether you use insurance. Colorado ranks around the middle nationally for treatment affordability, with a statewide residential average of roughly $56,413 without insurance, though most people pay a fraction of that once insurance benefits are applied. The figures below reflect Colorado averages by care type.

Actual costs vary with setting, amenities, and length of stay. Outpatient programs cost far less than residential care and are the most common local format, while medical detox and inpatient stays carry the highest price tags. Insurance, Health First Colorado, sliding-scale fees, and financing can lower what you pay out of pocket.

Treatment setting: inpatient and residential care cost more than outpatient.

Program length: 30, 60, and 90-day programs scale in price.

Level of care: medical detox and 24-hour supervision raise costs.

Insurance status: in-network coverage and Medicaid reduce out-of-pocket cost.

Sliding scale: several local programs adjust fees to income.

Across the 12 rehab centers serving Longmont, most accept self-payment and private insurance, and many work with Health First Colorado or offer sliding-scale fees. The counts below show how many local facilities report accepting each of the most common payment types.

12 accept self-payment or cash

6 accept private health insurance

4 accept Health First Colorado (Colorado Medicaid)

1 accepts Medicare

5 offer sliding-scale fees

3 offer financing

2 offer financial assistance

Which option makes the most sense depends on your coverage and income. The subsections below outline how the main payment paths work for Longmont residents.

Health First Colorado (Colorado Medicaid)

Colorado’s Medicaid program, Health First Colorado, covers the full continuum of substance use care, from detox to outpatient counseling and medication-assisted treatment. Benefits are coordinated through Colorado Community Health Alliance, the regional accountable entity for Boulder County, and four Longmont facilities report accepting Health First Colorado. Mental Health Partners is a strong local starting point for covered care.

Medicare

Medicare covers substance use treatment that is medically necessary, including inpatient care under Part A and outpatient services and counseling under Part B, with Medicare Advantage plans offering the same benefits. One Longmont center accepts Medicare, and older adults may find more options at larger programs in Boulder or the metro.

Insurance and Private Pay

Most Longmont centers in the directory accept self-payment, and many accept private insurance; marketplace plans through Connect for Health Colorado must cover substance use treatment. Coverage varies by plan and network status, so verify benefits before you commit. Major carriers active in Colorado include:

• Anthem Blue Cross and Blue Shield
• Kaiser Permanente
• UnitedHealthcare
• Cigna
• Aetna
• Rocky Mountain Health Plans

Other Low-Cost Options

For those without full coverage, five Longmont centers offer sliding-scale fees, three offer financing, and two offer financial assistance. Mental Health Partners serves residents regardless of ability to pay, and treatment scholarships can help close the gap.

Longmont offers detox, inpatient, and outpatient care locally, with 6 detox programs, 4 inpatient programs, and 12 outpatient clinics reported. Most facilities also treat co-occurring mental health conditions.

6 medical detox facilities

4 inpatient rehab programs

12 standard outpatient clinics

7 dual diagnosis programs

Medical detox provides 24-hour supervision to manage withdrawal safely and is the usual first step for opioid or alcohol dependence. Six area programs offer medically supervised detox.

Inpatient and residential rehab provides structured, live-in treatment. Four local inpatient rehab programs serve people who need to step away from daily triggers to focus on early recovery.

Outpatient treatment lets people live at home while attending scheduled sessions, and it is the most common local format, with 12 clinics reported. It suits people balancing work or family and those stepping down from residential care.

Dual diagnosis care treats addiction alongside conditions like depression or anxiety. Seven reporting facilities address co-occurring disorders, which matters given how often mental health and substance use overlap.

Many Longmont facilities tailor treatment to specific groups and substances. The counts below reflect programs that report each specialty focus.

10 alcohol rehab programs

8 young adult programs

7 women’s programs

7 men’s programs

5 opioid rehab programs

2 LGBTQ+ friendly programs

1 veterans and military program

Alcohol is the leading treatment focus locally, with 10 programs addressing alcohol use disorder, followed by five that treat opioid use disorder. Programs for young adults are widespread, and two facilities offer LGBTQ+ affirming addiction care, alongside dedicated tracks for women and men.

Cost should not keep anyone from help. Longmont residents can reach crisis support, treatment access lines, and harm-reduction resources at no charge, including crisis and suicide-prevention support around the clock.

Crisis and Helplines

• 988 Suicide & Crisis Lifeline: Call or text 988 any time for a mental health or substance use crisis.
• Colorado Crisis Services: 1-844-493-8255, or text TALK to 38255, for 24/7 confidential support and statewide walk-in crisis centers.
• Never Use Alone: 1-800-484-3731, a 24/7 overdose-prevention hotline that stays on the line during use.

Local Treatment and Recovery

• Mental Health Partners: The community behavioral health provider for Boulder and Broomfield counties, with services in Longmont including substance use treatment, MAT, and 24/7 crisis care (mhpcolorado.org).
• Colorado Community Health Alliance: The regional accountable entity connecting Health First Colorado members in Boulder County to covered care (cchacares.com).

Government and Harm Reduction

• Boulder County Public Health (The Works): Free naloxone, fentanyl test strips, safer-use supplies, and outreach in Longmont (bouldercounty.gov).
• Stop the Clock Colorado: An interactive statewide map to find the nearest free naloxone under Colorado’s pharmacy standing order (stoptheclockcolorado.org).
• Colorado 211: Dial 211 to connect with local health, housing, and treatment resources (211colorado.org).

Longmont sits in Boulder County, where opioid-related emergency department visits rose roughly 250% between 2017 and 2020 before the county invested settlement funds in prevention and treatment. Statewide, more than 1,600 Coloradans died of a drug overdose in 2024, but overdose data point to a turning point: fentanyl and other opioid deaths fell sharply over the most recent year measured, suggesting Colorado has moved past the peak.

1. Colorado Department of Public Health and Environment. (2025). Colorado drug overdose data. cdphe.colorado.gov.
2. Boulder County Public Health. (2021/2024). Opioid data and The Works program. bouldercounty.gov.
3. Colorado Consortium for Prescription Drug Misuse Prevention. (2025). Decline in fentanyl overdoses. corxconsortium.org.
4. Mental Health Partners. (n.d.). Substance use and crisis services. mhpcolorado.org.
5. Health First Colorado. (n.d.). Behavioral health and Regional Accountable Entities. healthfirstcolorado.com.
6. National Center for Drug Abuse Statistics. (2022). Average Cost of Drug Rehab by Type, State and More.