Idaho Power is a well known electric utility concern that is engaged in addressing domestic and commercial energy needs. Consumers intending to get in touch with Idaho Power Company with regard to relevant concerns and queries may refer to given customer service information in order to be able to avail hassle free assistance in an expedited manner. Idaho Power Customer Service Number Within Treasure Valley: 208-388-2323 Idaho Power Customer Service Number Outside of Treasure Valley: 1-800-488-6151 Idaho Power Customer Service Hours:  Monday through Friday, from 7:30 a.m. to 6:30 p.m., Mountain Time. Phone Number for Dig Line:  811 Corporate Headquarters (Mailing Address): I daho Power P.O. Box 70 Boise, ID 83707 Payment Mailing Address: Processing Center P.O. Box 34966 Seattle, WA 98124-1966 Idaho Power Customer Service Number for Outage or an Emergency - Within Treasure Valley: 208-388-2323 | Outside of Treasure Valley: 1-800-488-6151