Nonprofit · EIN 20-0335960
CASTLEROCK MUSEUM INC
Tax-exempt · ALMA, WI 54610
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $198,326 | $208,822 | -$10,496 | $1,670,188 | $1,873 | $1,668,315 |
| December 31, 2024 | 990-PF | $157,145 | $240,435 | -$83,290 | $1,679,814 | $1,003 | $1,678,811 |
| December 31, 2023 | 990-PF | $500,460 | $147,420 | $353,040 | $1,763,438 | $1,337 | $1,762,101 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $99,728
- Dividends
- $59,767
- Interest
- $2,800
- Other income
- $34,608
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $57,417
- Salaries, compensation and benefits (total)
- $14,765
- Disbursements for charitable purposes
- $156,865
- Excise tax on investment income
- $1,193
Balance sheet and other
- Total assets, start of year
- $1,679,814
- Total assets, end of year
- $1,670,188
- Total liabilities, end of year
- $1,873
- Net assets, end of year
- $1,668,315
- Fair market value of assets
- $933,411
- Qualifying distributions
- $156,865
- Net investment income
- $97,175
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-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| William Wolcott 404 S 2nd St, Alma, WI 54610 | Executive DirectorSecretary | 40 | $57,417 |
| Chris Knecht 1330 E Burns Valley Rd Apt 406, Winona, MN 55987 | President | 2 | $0 |
| Del Twidt W1047 Oak Valley Road, Fountain City, WI 54629 | Treasurer | 2 | $0 |
| Derek Olson 916 E Wabasha St, Winona, MN 55987 | Vice President | 2 | $0 |
| Larry Jost S1824 Rotering, Alma, WI 54610 | Director | 2 | $0 |
990-PF for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| William Wolcott 404 S 2nd St, Alma, WI 54610 | Executive DirectorSecretary | 40 | $50,271 |
| Chris Knecht 1990 E Burns Valley Rd Apt 406, Winona, MN 55987 | President | 2 | $0 |
| Ralph Ruben 18 E 3rd St, Buffalo City, WI 54622 | Vice PresidentTreasurer | 2 | $0 |
| Derek Olson 2721 Paul Pl, La Crosse, WI 54601 | Director | 2 | $0 |
| Larry Jost S1824 Rotering, Alma, WI 54610 | Director | 2 | $0 |
990-PF for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Chris Knecht 1990 E Burns Valley Rd Apt 406, Winona, MN 55987 | President | 2 | $0 |
| Ralph Ruben 18 E 3rd St, Buffalo City, WI 54622 | Vice PresidentTreasurer | 2 | $0 |
| William Wolcott 404 S 2nd St, Alma, WI 54610 | Executive DirectorSecretary | 40 | $0 |
| Derek Olson 2721 Paul Pl, La Crosse, WI 54601 | Director | 2 | $0 |
| Larry Jost S1824 Rotering, Alma, WI 54610 | Director | 2 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 335, ALMA, WI 54610-0335
- In care of
- % WILLIAM WOLCOTT
- Signed the 990-PF
- WILLIAM WOLCOTT, Executive DirectorSecretary
- Phone
- (608) 685-4231
- Website
- castlerockmuseum.com
- Return prepared by
- Kelly J Herold
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 20-0335960
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private operating foundation
- Donations deductible (Pub 78)
- Private operating foundation, 50% limit
- Exempt since
- 2004
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Arts, culture and humanities (A50)
- Assets (IRS master file)
- $1,670,188
- Income (IRS master file)
- $198,326
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $198,326 | $208,822 | $1,670,188 | IRS |
| 990-PF | December 2024 | $157,145 | $240,435 | $1,679,814 | IRS |
| 990-PF | December 2023 | $500,460 | $147,420 | $1,763,438 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | 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 20-0335960).
Questions about CASTLEROCK MUSEUM INC
- What is the EIN of CASTLEROCK MUSEUM INC?
- The employer identification number (EIN) of CASTLEROCK MUSEUM INC is 20-0335960.
- Is CASTLEROCK MUSEUM INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2004.
- Are donations to CASTLEROCK MUSEUM INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private operating foundation, 50% limit).
- Which annual return does CASTLEROCK MUSEUM INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of CASTLEROCK MUSEUM 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 CASTLEROCK MUSEUM INC last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of CASTLEROCK MUSEUM INC?
- The 990-PF for the year ended December 31, 2025 lists 5 people; 1 received compensation from the organization, the highest $57,417 (William Wolcott, Executive DirectorSecretary).
- How much revenue does CASTLEROCK MUSEUM INC have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $198,326, expenses of $208,822 and total assets of $1,670,188 at year end.
Other nonprofits in ALMA
- BUFFALO COUNTY HISTORICAL SOCIETY INC EIN 39-1458495 · last filed 990-N for 2025
- ALMA MUSIC AND ARTS INC EIN 82-3393859 · last filed 990-N for 2025
- BUFFALO COUNTY HOUSING INC EIN 39-1225238 · last filed 990 for 2025
- CASTLEROCK FOUNDATION INC EIN 39-1942244 · last filed 990-PF for 2025
- BUFFALO COUNTY 4-H LEADERS ASSOC EIN 39-1344500 · last filed 990-N for 2024
- BUFFALO COUNTY SNOWMOBILE ASSN INC EIN 39-1500124 · last filed 990-EZ for 2025
- BUFFALO COUNTY LAND & TRAILS TRUST INC EIN 47-1894376 · last filed 990-EZ for 2025
- AMERICAN LEGION AUXILIARY EIN 27-2488924 · last filed 990-N for 2024
All nonprofits in ALMA · Wisconsin · Arts, culture and humanities