Office hours for the Iowa Utilities Board are 8 a.m. to 4:30 p.m. Monday through Friday. The office is closed Saturday, Sunday, and official state holidays.
Send a letter to the IUB by mail or in person:
Iowa Utilities Board
1375 E. Court Ave.
Des Moines, IA 50319-0069
Call the IUB by phone:
Utility customer complaints or customer inquiries - 877.565.4450 (toll-free) or 515.725.7321 (Des Moines local)
General agency number / non-complaint related questions - 515.725.7300
See agency phone list
Submit a utility-related complaint electronically:
Online complaint form
Map to the Office: