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.

Mail or deliver a letter to the IUB:
Iowa Utilities Board 
1375 E. Court Ave.
Des Moines, IA 50319-0069

Call the IUB:
Utility customer complaints or customer inquiries - 877-565-4450 (toll-free) or 515-725-7321  
General agency number (non-complaint related) - 515-725-7300
See agency phone list

Email the IUB:
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

Fax the IUB:
515-725-7398

Submit a utility-related complaint electronically:
Online complaint form

Map to the Office: