Law Enforcement Agencies in Potosi, MO MO › Washington County Agencies serving the city of Potosi in MO. Agency Types in Potosi Coroners 1 agencies County Jails 1 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Potosi, MO Potosi Police Department Washington County Washington County Coroners Office Washington County Washington County Jail Washington County Washington County Sheriffs Department Washington County
