What is the mailing address for dairyland power cooperative? Mailing Address. Dairyland Power Cooperative. P.O. Box 817. La Crosse, WI 54602. Phone: (608) 788-4000. Shipping Addresses. Administration Building/Service Center. Dairyland Power Cooperative. 3251 East Ave., S.Why join ekpc kentucky? Come help us shape Kentucky’s future. You’ll receive excellent training and benefits. You’ll enjoy a safe work environment and strong relationships. That’s EKPC life!How do i contact my cooperative about an outage or service request? If you have a question regarding an outage or new service request, please contact your cooperative (or local utility) directly. Otherwise, utilize the webform below. This institution is an equal opportunity provider.