"Nationally, in 2012, the rate of opioid abuse or dependence was 891.8 per 100,000 people aged 12 years or older compared with national rates of maximum potential buprenorphine treatment capacity and patients receiving methadone in OTPs of, respectively, 420.3 and 119.9. Among states and the District of Columbia, 96% had opioid abuse or dependence rates higher than their buprenorphine treatment capacity rates; 37% had a gap of at least 5 per 1000 people. Thirty-eight states (77.6%) reported at least 75% of their OTPs were operating at 80% capacity or more."
Christopher M. Jones, Melinda Campopiano, Grant Baldwin, and Elinore McCance-Katz. National and State Treatment Need and Capacity for Opioid Agonist Medication-Assisted Treatment. American Journal of Public Health: August 2015, Vol. 105, No. 8, pp. e55-e63.