United States County Jail Data
The United States has an inmate population of over 746,367 (some states were not counted by the Department of Justice) housed in 3,181 jails and employs an estimated detention staff of 230,007. The average incarcertation rate is 226 inmates per 100,000 citizens. There are 420 mens facilities, 31 womens facilities, and 2,777 all gender facilities in the U.S. The staff to inmate ratio in the United States is 2.74510. Their are 746,367 probation, 1,492 prerelease, 380 youth, and 313 drug facilities. Of the 746,367 inmates 40,504 are housed in small facilities (less than 100), 90,633 are housed in facilities holding 100-499 inmates, 120,502 are housed in facilities holding 500-999 inmates, and 373,156 inmates are incarcerated in facilities that can hold 1,000 or more inmates.