Clemens Unit (CN) is a prison farm of the Texas Department of Criminal Justice (TDCJ) in unincorporated Brazoria County, Texas in Greater Houston. The prison, with about 8,008 square feet (744.0 m2), is located at the intersection of Farm to Market Road 2004 and Texas State Highway 36. The prison, in the Texas Gulf Coast region, is in proximity to the City of Brazoria, and it is in proximity to the Velasco community, now a part of Freeport. The prison is situated south of Houston.