NorthWestern Energy provides electric and/or natural gas services to 349 cities in the western two-thirds of Montana, eastern South Dakota and central Nebraska. We have offices in the following locations:

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Click for map Billings Division Office 1944 Monad Road Billings, MT 59102	Click for map Great Falls Division Office 1501 N River Road Black Eagle, MT 59414
Click for map Bozeman Division Office 121 East Griffin Drive Bozeman, MT 59771-0490	Click for map Helena Division Office 1315 North Last Chance Gulch Helena, MT 59604
Click for map Butte - General Office 11 E. Park St. Butte, MT 59701-1711	Click for map Kalispell District Office 890 N. Meridian Rd Kalispell, MT 59904-2888
Click for map Butte Division Office 400 Oxford Street Butte, MT 59701	Click for map Missoula Division Office 1801 S. Russell St Missoula, MT 59806

Click for map Aberdeen Office 113 S Centennial Street Aberdeen, SD 57401	Click for map Brookings Office 1232 22nd Avenue South Brookings, SD 57006
Click for map Chamberlain Office 115 N Main Chamberlain, SD 57325	Click for map Huron Operations Center 600 Market Street W Huron, SD 57350
Click for map Kimball Office 121 S Main Kimball, SD 57355	Click for map Mitchell Office 300 S Burr St Mitchell, SD 57301
Click for map Wagner Office 108 N Main Wagner, SD 57380	Click for map Yankton Office 313 Cedar Yankton, SD 57078

Click for map Grand Island Office 612 S Webb Road Grand Island, NE 68803	Click for map Kearney Office 1023 E 25th St Kearney, NE 68847
Click for map North Platte Office 215 E Fifth North Platte, NE 69101