NorthWestern Energy Service Area
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:
Corporate Office
- NorthWestern Energy
3010 West 69th Street.
Sioux Falls, SD 57108
Montana
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Billings Division Office
1944 Monad Road
Billings, MT 59102
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Bozeman Division Office
121 East Griffin Drive
Bozeman, MT 59771-0490
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Butte - General Office
40 East Broadway
Butte, MT 59701
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Bozeman Downtown Office
402 East Main St., Suite 3
Bozeman, MT 59715
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Butte Division Office
400 Oxford Street
Butte, MT 59701
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Great Falls Division Office
1501 N River Road
Black Eagle, MT 59414
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Havre District Office
164 21st Avenue West
Havre, MT 59501
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Helena Division Office
1315 North Last Chance Gulch
Helena, MT 59604
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Kalispell District Office
890 N. Meridian Rd.
Kalispell, MT 59904-2888
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Missoula Division Office
1801 S. Russell St.
Missoula, MT 59806
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South Dakota
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Aberdeen Office
113 S Centennial Street
Aberdeen, SD 57401
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Aberdeen Service Center
810 S. 8th St.
Aberdeen, SD 57104
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Armour Office
620 Main
Armour, SD 57313
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Brookings Office
1232 22nd Avenue South
Brookings, SD 57006
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Chamberlain Office
115 N Main
Chamberlain, SD 57325
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Huron Operations Center
600 Market Street W
Huron, SD 57350
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Kimball Office
121 S Main
Kimball, SD 57355
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Madison Office
104 N Egan Avenue
Madison, SD 57042
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Mitchell Office
514 N Main
Mitchell, SD 57301
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Parkston Office
120 Main
Parkston, SD 57366
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Platte Office
419 Main
Platte, SD 57369
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Redfield Office
515 N Main
Redfield, SD 57469
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Scotland Office
504 Main
Scotland, SD 57059
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Wagner Office
108 N Main
Wagner, SD 57380
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Webster Office
201 W 5th Avenue
Webster, SD 57274
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Yankton Office
313 Cedar
Yankton, SD 57078
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Nebraska
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Grand Island Office
515 W Third
Grand Island, NE 68801
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Kearney Office
1023 E 25th St
Kearney, NE 68847
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North Platte Office
215 E Fifth
North Platte, NE 69101
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