Data update history
October 12, 2026
Posted financials
Added Form 990 for fiscal year 2025
September 22, 2026
Used new vendors
Identified 2 new vendors, including , and
April 1, 2026
Posted financials
Added Form 990 for fiscal year 2024
February 26, 2026
Updated personnel
Identified 8 new personnel
February 4, 2026
Used new vendors
Identified 2 new vendors, including , and
Nonprofit Types
Public utilitiesPublic sector nonprofitsHeadquarter / parent organizations
Issues
Community improvement
Characteristics
Legally formed as corporation
General information
- Address
- PO Box 227
- Medicine Lake, MT 59247
- County
- Sheridan County, MT
- Phone
- (406) 489-2231
IRS details
- EIN
- 81-0216871
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1946
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- W80: Public Utilities
- NAICS code, primary
- 2211: Electric Power Generation, Transmission, and Distribution Establishments
- Parent/child status
- Central organization
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