Johnston City Sewer Department 100 W Broadway Blvd Johnston City, IL 62951 Phone : (618) 983-5223 Business Category Government Offices-City Village & Twp Water & Sewage Companies-Utility Water Supply Legislative Bodies Regulation & Admin Of Communications Electric Gas & Other Utilities Johnston City City Of--water & Sewer Dept City Hall Bldg Johnston City, IL 62951 Phone : (618) 983-5223 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools