Utilities
Hours:
Yankton Office Open Monday - Friday: 8am - 5pm
24/7 Internal Call Center (800) 245-6977
Driving Directions:
There are several local offices throughout our territory. Our Yankton Office is located at 313 Cedar. Other locations can be found on our website www.northwesternenergy.com.
For more than 100 years, NorthWestern Energy continues to deliver the energy and exceptional service that our customers and communities count on - safely, efficiently and responsibly. NorthWestern Energy provides electricity and/or natural gas to communities in South Dakota, Montana and Nebraska. We serve approximately 665,000 customers.