Maryville Treatment Center

The Maryville Treatment Center is a minimum-security state prison and substance abuse treatment center for male inmates located in Maryville, Missouri. It can house up to 561 inmates who have been sentenced to at least six months of treatment and behavior modification as part of the Offenders Under Treatment (OUT) Program and the Board of Substance Abuse Program (BDSAP).

This facility is on the grounds of the former Mount Alverno motherhouse of the Sisters of St. Francis of Maryville, just outside of city limits. The Franciscan motherhouse was built in 1947 and featured a yellow bell tower as a notable landmark.

The motherhouse and school was abandoned in 1985 when they merged with the Sisters of St. Mary to form the Fransciscan Sisters of Mary. The Missouri DOC leased the property in 1995 and opened the treatment facility in 1996.

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Maryville Treatment Center

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Visiting Hours and Rules

Visiting hours at the Maryville Treatment Center are on Saturdays and Sundays from 9:00 am to 5:00 pm.

Visiting Applications

Before you can visit an inmate at the Maryville Treatment Center, you must fill out a visiting application and be approved by the Missouri Department of Corrections. You can access the online visiting application by clicking here. If you prefer a paper application, you will have to ask your inmate to mail you one. 

General Visiting Rules

All adult visitors are required to bring a photo ID, like a current driver’s license or Department of Revenue identification card. Visitors 13 years and older are required to show a current school photo identification card that includes their name, or a valid federal or state government-issued identification card before admission to the visiting area. 

Visitors under 18 years old, unless married to the offender, must be accompanied by an authorized adult visitor.

All visitors are subject to a search. A metal detector may be used to detect weapons or other contraband. This may be completed by a walk-through metal detector or a hand-held wand.

Allowed Items at Visit

Visitors are allowed to bring in enough change to purchase sodas and snacks from the visiting room vending machines.

Specific medical and infant supplies are also allowed during visits. However, gum, wallets, purses, electronics, and other items must be left in your vehicle or put in a locker.

Coins must be brought in a clear sandwich bag or transparent plastic pouch for use in the vending machines. 

Medications or medical equipment needed to maintain life may be taken into the facility in their original container and only in the necessary dosage for the visiting period. You should notify staff upon your arrival of the need for medication during visitation.

When you bring a small infant or child, one clear carry-all for infant supplies is allowed. This bag may contain:

  • Up to six diapers
  • One blanket
  • Three clear, plastic bottles of prepared infant beverage
  • One clear, plastic, no-spill toddler cup
  • Three unopened vendor containers of baby food
  • One, plastic pacifier, teether and/or rattle
  • One small, plastic spoon 
  • One unopened package of baby wipes

Dress Code

Visitor clothing should not be tight, transparent, or revealing. Do not wear any clothing with gang, racial, inappropriate or inflammatory language or symbols are allowed and clothing may not have a camouflage design. 

Skirts, dresses, and shorts may be no shorter than two inches above the top of the kneecap. Wrap-around or slit skirts or dresses are not permitted. 

Holes or slits are not permitted in pants. Shirts, blouses, and tops must cover the chest and stomach and have sleeves that cover the shoulders, without display of cleavage or midriff. 

Appropriate undergarments and shoes must be worn at all times. Undergarments with wire or metal supports are discouraged because you may be required to clear a metal detector. 

No headwear is allowed except for verified religious purposes and is subject to search.

Physical Address

Maryville Treatment Center
30227 US Highway 136
Maryville, MO 64468

Driving Directions:

General Phone Number

​(660) 582-6542

Inmate Mailing Address(es)

Inmate Name, DOC Number, and Housing Unit
Maryville Treatment Center
30227 US Highway 136
Maryville, MO 64468

The Missouri DOC requires you to send pictures and personal correspondence in separate envelopes. If you mail both pictures and personal correspondence together in one envelope, it will be returned.

How to Call an Inmate

You can’t call an inmate at the Maryville Treatment Center, but they do have access to phones and are allowed to make monitored outgoing calls during approved hours. For complete details on how to call an inmate in Missouri, please click here.

How to Send Money

Each inmate has a personal account that can be used to buy items from the prison canteen. You can electronically deposit funds into an inmate’s account through JPay. Your options include their website or their mobile app to deposit money, or you can call 1-800-574-5729.

Another option is to mail a money order or cashier’s check that can be deposited to an offender’s account. It must be made payable to the Missouri Department of Corrections and be accompanied by a DOC deposit slip. Each inmate has access to deposit forms and can send the slips to you at any time. All money orders must be sent to the following address:

Offender Finance Office
Missouri Department of Corrections
P.O. Box 1609
Jefferson City, MO 65102

Please make sure that you supply all of the information requested on the deposit slip in blue or black ink. If you have questions, you can call the Offender Finance Office at 573-526-6445. You can also deposit cash into an inmate’s account via MoneyGram. The receive code for Missouri DOC is 2439. You can learn more by clicking here.

Programs For Inmates

  • Substance Abuse Treatment

Approximately 83 percent of Missouri DOC inmates are engaged in substance misuse within 12 months before their incarceration. In order to provide the earliest possible intervention and the most effective treatment, the department provides substance use disorder services for offenders in institutions as well as strategies to support people under supervision in the community, 

Institutional treatment centers (ITC) provide structured comprehensive substance use disorder treatment for incarcerated, parole, and probation violators.

ITCs offer a more therapeutic alternative to traditional incarceration. Offenders are held accountable for their behavior and are required to successfully complete treatment interventions prior to release. The department partners with the Department of Mental Health's Division of Behavioral Health to provide treatment services in the community for offenders and facilitate the continuity of care from institutions to treatment and recovery support services in community settings.

Long-term substance use disorder treatment (12 months) for chronic and progressive addictions is provided at Maryville Treatment Center.

Drug screening via urinalysis is an important part of the department's zero tolerance approach toward drug use by offenders. In 2001, the department began drug testing for incarcerated offenders and offenders on probation and parole supervision. 

On a monthly basis, five percent of all offenders are randomly selected for urinalysis testing and five percent of offenders who have previously tested positive are selected for "targeted testing." Drug testing assists corrections professionals in their work to assess, evaluate, and refer offenders to appropriate substance use disorder programs within the institutions and the community.

To further combat the illegal use of drugs in prison, the department has enhanced interdiction efforts to intercept drug transactions and deliveries. The combination of drug intervention, drug screening, and treatment strategies enforces the department's zero tolerance standard for offender drug use.

Pictures of Maryville Treatment Center

Careers at Maryville Treatment Center

If you are interested in a career with the Missouri Department of Corrections at the Maryville Treatment Center, you can find out more information by clicking here