If you are looking for sumner ia utilities, please check our official links below: Sumner Municipal Light Plant # Sumner Municipal Utilities, 105 Wapsie St ... - MapQuest https://www.mapquest.com/us/iowa/sumner-municipal-utilities-417506455 Get directions, reviews and information for Sumner Municipal Utilities in Sumner, IA. ... Municipal Utilities. 105 Wapsie St SumnerIA50674. (563) 578-5611....