Law Enforcement Agencies in Howell Mills, VA VA › Botetourt County Agencies serving the city of Howell Mills in VA. Agency Types in Howell Mills County Jails 2 agencies Parole Probation 1 agencies Sheriff 1 agencies All Agencies in Howell Mills, VA Botetourt County Jail Botetourt County Botetourt County Jail Botetourt County Botetourt County Sheriffs Department Botetourt County Cmnty Corrections Probation & Parole Botetourt County