TY - JOUR AU - G. Pro AU - H. W. Neighbors AU - B. Wilkerson AU - T. Haynes A1 - AB - The co-occurrence of substance use (SUD) and mental disorders is increasing in the US. Integrating mental health services into SUD treatment facilities improves treatment retention and success, but access to integrated services is lagging behind growing demand. The purpose of this study was to map the locations of SUD treatment facilities that offer integrated mental health services and identify community characteristics associated with whether a treatment facility offers more comprehensive integrated services. We used the Mental health and Addiction Treatment Tracking Repository to identify the location and characteristics of licensed outpatient SUD treatment facilities in the US (2022; N = 8,858). Our focal predictors included the percentage of a census block group that was White, Black, and Hispanic. We used multilevel multiple logistic regression to model whether a facility offered integrated mental health (y/n), adjusted for relevant facility-, county-, and state-level covariates, and defined state as a random effect. The majority of integrated facilities were located in the eastern US, with notable concentrations around large metropolitan areas of Minneapolis, MN, Chicago, IL, Atlanta, GA, and New York, NY. For every 10-percentage point increase in a census block group's Black and Hispanic population, there was a 5% and 7% decrease in the odds of offering integrated services, respectively (aOR(Black) = 0.95, 95% CI = 0.91-0.99, p = 0.04; aOR(Hispanic) = 0.93, 95% CI = 0.90-0.96, p < 0.0001). We frame our findings around social conditions as fundamental drivers of disease and healthcare access and acknowledge the country's historical disinvestment in nonwhite and rural communities. Racially targeted programs are needed to effectively address growing racial and ethnic inequities in SUD and mental healthcare. AD - Department of Health Behavior and Health Education, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR, 72205, USA. Electronic address: gcpro@uams.edu.; Department of Health Behavior and Health Equity, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, USA.; Health Promotion and Prevention Research PhD Program, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR, 72205, USA; Department of Physician Assistant Studies, College of Health Professions, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR, 72205, USA.; Department of Health Behavior and Health Education, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR, 72205, USA. AN - 39983247 BT - Soc Sci Med C5 - Opioids & Substance Use; Healthcare Disparities DA - Mar DO - 10.1016/j.socscimed.2025.117843 DP - NLM ET - 20250211 JF - Soc Sci Med LA - eng N2 - The co-occurrence of substance use (SUD) and mental disorders is increasing in the US. Integrating mental health services into SUD treatment facilities improves treatment retention and success, but access to integrated services is lagging behind growing demand. The purpose of this study was to map the locations of SUD treatment facilities that offer integrated mental health services and identify community characteristics associated with whether a treatment facility offers more comprehensive integrated services. We used the Mental health and Addiction Treatment Tracking Repository to identify the location and characteristics of licensed outpatient SUD treatment facilities in the US (2022; N = 8,858). Our focal predictors included the percentage of a census block group that was White, Black, and Hispanic. We used multilevel multiple logistic regression to model whether a facility offered integrated mental health (y/n), adjusted for relevant facility-, county-, and state-level covariates, and defined state as a random effect. The majority of integrated facilities were located in the eastern US, with notable concentrations around large metropolitan areas of Minneapolis, MN, Chicago, IL, Atlanta, GA, and New York, NY. For every 10-percentage point increase in a census block group's Black and Hispanic population, there was a 5% and 7% decrease in the odds of offering integrated services, respectively (aOR(Black) = 0.95, 95% CI = 0.91-0.99, p = 0.04; aOR(Hispanic) = 0.93, 95% CI = 0.90-0.96, p < 0.0001). We frame our findings around social conditions as fundamental drivers of disease and healthcare access and acknowledge the country's historical disinvestment in nonwhite and rural communities. Racially targeted programs are needed to effectively address growing racial and ethnic inequities in SUD and mental healthcare. PY - 2025 SN - 0277-9536 SP - 117843 ST - Place-based access to integrated mental health services within substance use disorder treatment facilities in the US T1 - Place-based access to integrated mental health services within substance use disorder treatment facilities in the US T2 - Soc Sci Med TI - Place-based access to integrated mental health services within substance use disorder treatment facilities in the US U1 - Opioids & Substance Use; Healthcare Disparities U3 - 10.1016/j.socscimed.2025.117843 VL - 369 VO - 0277-9536 Y1 - 2025 ER -