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

Send a letter to the IUB by mail or in person:

Iowa Utilities Board
1375 E. Court Avenue, Room 69
Des Moines, Iowa 50319-0069

see Map to Office

By Fax:

515.725.7399

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

Electronically:

Online complaint form