Rapid City
Customer Service:
24 Hour Customer Service Line: 800-742-8948
E: customerservice@blackhillscorp.com
To Report Outages:
Telephone: (605) 721-2475
Toll Free: 1-800-839-8197
24 hour electric, cooling and heating repair:
Toll free: 1-877-747-2805
Business Hours:
8:00 AM - 5:00 PM (Monday - Friday)
Business Address:
P.O. Box 1400
409 Deadwood Ave.
Rapid City, SD 57709
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