Nonprofit · EIN 46-0226551
RUSHMORE ELECTRIC POWER COOPERATIVE INC
Tax-exempt · RAPID CITY, SD 57709
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $10,635,559 | $9,301,357 | $1,334,202 | $82,882,556 | $12,639,141 | $70,243,415 |
| December 31, 2024 | 990 | $11,018,366 | $9,151,048 | $1,867,318 | $79,206,939 | $10,297,726 | $68,909,213 |
| December 31, 2023 | 990 | $12,386,958 | $8,575,236 | $3,811,722 | $76,030,638 | $8,988,743 | $67,041,895 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $5,535,942
- Investment income
- $282,113
- Net rental income
- $15,560
- Net gain from sales of assets
- $23,710
- Net income from sales of inventory
- $4,283,676
- Other revenue
- $4,817,504
Expenses
- Grants and similar amounts paid
- $0
- Benefits paid to members
- $3,012,500
- Compensation of officers, directors and key employees
- $673,147
- Other salaries and wages
- $1,896,310
- Salaries, compensation and benefits (total)
- $3,788,447
- Professional fundraising fees
- $0
- Legal fees
- $52,597
- Accounting fees
- $25,010
- Occupancy
- $131,664
- Travel
- $85,053
- Depreciation
- $414,655
Balance sheet and other
- Total assets, start of year
- $79,206,939
- Total assets, end of year
- $82,882,556
- Total liabilities, end of year
- $12,639,141
- Net assets, end of year
- $70,243,415
- Land, buildings and equipment
- $1,937,583
- Gross unrelated business income
- $1,000
- Gross receipts
- $92,469,402
- Employees
- 31
- Year formed
- 1950
- State of legal domicile
- SD
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| KORY HAMMERBECK | CEO/GENERAL Officer | 40 | $269,146 | $112,994 |
| CORY TRAPP | ENGINEERING Highest-paid employee | 40 | $177,045 | $81,378 |
| MATT BRUNNER | CMO Highest-paid employee | 40 | $147,379 | $71,934 |
| MARCCHARLES ZAUTKE | CIO Highest-paid employee | 40 | $141,027 | $55,942 |
| MARK MILLER | CFO Officer | 40 | $121,367 | $65,833 |
| ERIC NELSON | COO Highest-paid employee | 40 | $112,146 | $62,531 |
| DERRICK BEARDT | SCADA TECH Highest-paid employee | 40 | $104,627 | $55,942 |
| JUSTIN BRICKNER | SECRETARY Trustee or director, Officer | 2.77 | $9,000 | $0 |
| TOM SCHLACK | DIRECTOR Trustee or director | 2.62 | $8,500 | $0 |
| JAMIE LEWIS | DIRECTOR Trustee or director | 2.38 | $7,750 | $0 |
| KERRY MCLELLAN | DIRECTOR Trustee or director | 2.31 | $7,500 | $0 |
| DAVE LINDBLOM | VICE PRESIDE Trustee or director, Officer | 2.08 | $6,750 | $0 |
| DWIGHT ROSSOW | PRESIDENT Trustee or director, Officer | 1.85 | $6,200 | $0 |
| DAN HEFNER | TREASURER Trustee or director, Officer | 1.23 | $4,000 | $0 |
| MIKE MCQUISTION | DIRECTOR Trustee or director | 1.23 | $3,750 | $0 |
990 for the year ended December 31, 2024: 13 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| KORY HAMMERBECK | CEO/GENERAL Officer | 40 | $257,530 | $95,886 |
| CORY TRAPP | ENGINEERING Highest-paid employee | 40 | $193,527 | $76,147 |
| MATT BRUNNER | CMO Highest-paid employee | 40 | $165,536 | $66,444 |
| MARCCHARLES ZAUTKE | CIO Highest-paid employee | 40 | $152,861 | $64,158 |
| MARK MILLER | CFO Highest-paid employee | 40 | $128,031 | $62,715 |
| JUSTIN BRICKNER | SECRETARY Trustee or director, Officer | 2.85 | $9,250 | $0 |
| TOM SCHLACK | DIRECTOR Trustee or director | 2.46 | $8,000 | $0 |
| DWIGHT ROSSOW | PRESIDENT Trustee or director, Officer | 1.85 | $7,100 | $0 |
| JAMIE LEWIS | DIRECTOR Trustee or director | 2.15 | $7,000 | $0 |
| KERRY MCLELLAN | DIRECTOR Trustee or director | 2.15 | $7,000 | $0 |
| DAVE LINDBLOM | VICE PRESIDE Trustee or director, Officer | 1.85 | $6,000 | $0 |
| DAN HEFNER | TREASURER Trustee or director, Officer | 1.69 | $5,500 | $0 |
| MIKE MCQUISTION | DIRECTOR Trustee or director | 1.38 | $4,500 | $0 |
990 for the year ended December 31, 2023: 14 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| KORY HAMMERBECK | CEO/GENERAL Officer | 40 | $235,691 | $88,283 |
| CORY TRAPP | ENGINEERING Highest-paid employee | 40 | $185,224 | $70,073 |
| MARC CHARLES ZAUTKE | CIO Highest-paid employee | 40 | $144,579 | $59,812 |
| MARK MILLER | CFO Highest-paid employee | 40 | $123,361 | $58,442 |
| TOM SCHLACK | DIRECTOR Trustee or director | 3.15 | $10,250 | $0 |
| JUSTIN BRICKNER | SECRETARY Trustee or director, Officer | 2.85 | $9,250 | $0 |
| DWIGHT ROSSOW | PRESIDENT Trustee or director, Officer | 2.15 | $7,500 | $0 |
| DAVE LINDBLOM | VICE PRESIDE Trustee or director, Officer | 2.08 | $6,750 | $0 |
| DAN HEFNER | TREASURER Trustee or director, Officer | 1.77 | $5,750 | $0 |
| JERRY HAMMERQUIST | DIRECTOR Trustee or director | 1.46 | $4,750 | $0 |
| MIKE MCQUISTION | DIRECTOR Trustee or director | 1.46 | $4,750 | $0 |
| KERRY MCLELLAN | DIRECTOR Trustee or director | 1.08 | $3,500 | $0 |
| PAUL LAWRENCE | DIRECTOR Trustee or director | 1 | $3,250 | $0 |
| JAMIE LEWIS | DIRECTOR Trustee or director | 0.31 | $1,000 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 2414, RAPID CITY, SD 57709-2414
- Principal officer (990 for 2025)
- KORY HAMMERBECK, PO BOX 2414, RAPID CITY, SD 57709
- Signed the 990
- KORY HAMMERBECK, CEO/GENERAL MANAGER
- Phone
- (605) 342-4759
- Website
- WWW.RUSHELEC.COM
- Return prepared by
- KETEL THORSTENSON LLP
Mission
WHOLESALE POWER SUPPLIER TO DISTRIBUTION COMPANY
Program accomplishments
- FURNISHED AMPLE SUPPLY OF LOW-COST ELECTRICAL POWER TO MEET PRESENT AND FUTURE NEEDS OF MEMBERS IN RURAL AREAS. EIGHT DISTRIBUTION MEMBER COOPERATIVES SERVED 69,528 CONSUMERS.
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 46-0226551
- Tax-exempt status
- 501(c)(12): Benevolent life insurance association or mutual company
- Donations deductible
- No
- Exempt since
- 1973
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $82,882,556
- Income (IRS master file)
- $92,469,402
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $10,635,559 | $9,301,357 | $82,882,556 | XML |
| 990 | December 2024 | $11,018,366 | $9,151,048 | $79,206,939 | XML |
| 990 | December 2023 | $12,386,958 | $8,575,236 | $76,030,638 | XML |
| 990 | December 2022 | $14,508,098 | $9,018,860 | $78,036,719 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 46-0226551).
Questions about RUSHMORE ELECTRIC POWER COOPERATIVE INC
- What is the EIN of RUSHMORE ELECTRIC POWER COOPERATIVE INC?
- The employer identification number (EIN) of RUSHMORE ELECTRIC POWER COOPERATIVE INC is 46-0226551.
- Is RUSHMORE ELECTRIC POWER COOPERATIVE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(12) since 1973.
- Are donations to RUSHMORE ELECTRIC POWER COOPERATIVE INC tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does RUSHMORE ELECTRIC POWER COOPERATIVE INC file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of RUSHMORE ELECTRIC POWER COOPERATIVE INC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did RUSHMORE ELECTRIC POWER COOPERATIVE INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of RUSHMORE ELECTRIC POWER COOPERATIVE INC?
- The 990 for the year ended December 31, 2025 names KORY HAMMERBECK.
- Who are the officers and directors of RUSHMORE ELECTRIC POWER COOPERATIVE INC?
- The 990 for the year ended December 31, 2025 lists 15 people; 15 received compensation from the organization, the highest $269,146 (KORY HAMMERBECK, CEO/GENERAL).
- How much revenue does RUSHMORE ELECTRIC POWER COOPERATIVE INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $10,635,559, expenses of $9,301,357 and total assets of $82,882,556 at year end.
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