Idaho Power is a major electric utility services provider of the region, catering commercial and domestic energy needs of a huge consumer base. Customers who intend to get in touch with Idaho Power with regard to Power Outages, Billing, and other other relevant concerns may refer to given customer service phone numbers and addresses to avail assistance in an expedited manner. Idaho Power Toll Free Customer Service: 1-800-488-6151 Idaho Power Customer Service Treasure Valley: 208-388-2323 Idaho Power Bill Pay: 1-800-488-6151 Idaho Power Payment Processing: P.O. Box 5381 Carol Stream, IL 60197-5381 Corporate Headquarters (Mailing Address): Idaho Power P.O. Box 70 Boise, ID 83707