Government in New Boston, IL City of Boston Water Treatment110 Liberty StNew Boston, IL, 612723095878370Blackhawk Twp SupervisorCityGovernment City Village TownshipSunset HeightsVillage Of US Lock & Dam173 Lock And Dam RdNew Boston, IL, 612723095878125United States Government Probation Office Us Federal Building Show MoreSee AlsoCity, Village & Township GovernmentFederal GovernmentGovernment OfficesState Government