Contact the IUB - Business Hours & Map to Office


Office hours for the Iowa Utilities Board are 8:00 a.m. to 4:30 p.m., Monday through Friday. The office is closed Saturdays, Sundays, and official state holidays.


Send a letter to the IUB by mail or in person:
Iowa Utilities Board 
1375 E. Court Avenue
Des Moines, Iowa 50319-0069


Call the IUB by phone:
Utility customer complaints or customer inquiries - 877.565.4450 (toll-free) 515.725.7321 (Des Moines local)
General agency number / non-complaint related questions - 515.725.7300
See agency phone list


Submit electronically:
Online complaint form


By Email:
Customer complaints or customer inquiries:
Non-complaint related questions or comments:
Questions about the web site: Contact the web master


By Fax:


Map to Office: