The H. H. Coffield Unit (CO) is a Texas Department of Criminal Justice prison for men in unincorporated Anderson County, Texas. The prison, near Tennessee Colony, is along Farm to Market Road 2054. The unit, on a 20,518 acres (8,303 ha) plot of land, is co-located with Beto, Gurney, Michael, and Powledge units. With a capacity of 4,021 inmates, Coffield is the TDCJ's largest prison.