Contact Us

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

By Email:
Customer complaints or customer inquiries: customer@iub.iowa.gov
Non-complaint related questions or comments: iub@iub.iowa.gov
Questions about the website: Contact the web master

By Fax:
515.725.7399

Submit a utility-related complaint electronically:
Online complaint form

Map to the Office: