Call the IUB by phone:

Toll-free for utility customer complaints or customer inquiries, 877-565-4450
Non-complaint related questions or comments, 515-281-5979

see Agency Phone List

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

350 Maple Street, Des Moines, Iowa 50319-0069

see Map to Office

By Fax:

515-281-5329

By Email:

Customer complaints or customer inquiries: iubcustomer@iub.state.ia.us
Non-complaint related questions or comments: iub@iub.state.ia.us

Questions about the website:  Contact the web master

Electronically:

Online complaint form