City Halls in Onawa, IA Onawa City Clerk's Office914 Diamond StOnawa, IA, 510407124331181City HallCity HallsCity OfCity Village Township GovernmentClerk Of CourtsDakota County CourthouseTekamah City AuditoriumWoodbine Municipal ElectricOnawa Maintenance Bldg1514 6th StOnawa, IA, 510407124331236City HallCity HallsCity OfCity Village Township GovernmentDakota County CourthouseTekamah City AuditoriumWoodbine Municipal ElectricShow More