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