Nonprofit · EIN 42-1310777
RIVER CITY SOCIETY FOR HISTORIC PRESERVATION
Tax-exempt · MASON CITY, IA 50402
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| March 31, 2025 | 990 | $78,163 | $86,814 | -$8,651 | $741,341 | $0 | $741,341 |
| March 31, 2024 | 990 | $54,322 | $93,132 | -$38,810 | $749,992 | $0 | $749,992 |
| March 31, 2023 | 990 | $67,481 | $106,870 | -$39,389 | $788,802 | $0 | $788,802 |
Financial details: 990 for the year ended March 31, 2025
Revenue
- Contributions, gifts and grants
- $23,106
- of which government grants
- $20,271
- Membership dues
- $2,835
- Program service revenue
- $36,518
- Investment income
- $4
- Net income from sales of inventory
- $18,535
- Other revenue
- $18,535
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $3,194
- Occupancy
- $32,040
- Depreciation
- $30,732
- Program services (functional)
- $73,401
- Management and general (functional)
- $13,413
Balance sheet and other
- Total assets, start of year
- $749,992
- Total assets, end of year
- $741,341
- Total liabilities, end of year
- $0
- Net assets, end of year
- $741,341
- Land, buildings and equipment
- $689,426
- Net assets without donor restrictions
- $741,341
- Gross receipts
- $98,100
- Employees
- 0
- Volunteers
- 35
- Year formed
- 1987
- State of legal domicile
- IA
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 March 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TOM DETTMER | PRESIDENT Trustee or director, Officer | – | $0 |
| JOANNE HARDINGER | DIRECTOR Trustee or director | – | $0 |
| ERICA KLUS | SECRETARY Trustee or director, Officer | – | $0 |
| MARKK KROEMER | DIRECTOR Trustee or director | – | $0 |
| DAVID LEE | VICE PRESIDE Trustee or director, Officer | – | $0 |
| CRYSTAL MEIER | DIRECTOR Trustee or director, Officer | – | $0 |
| KENDALL PETERSEN | DIRECTOR Trustee or director | – | $0 |
| ROGER SCHLITTER | TREASURER Trustee or director, Officer | – | $0 |
990 for the year ended March 31, 2024: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TOM DETTMER | PRESIDENT Trustee or director, Officer | 1 | $0 |
| JOANNE HARDINGER | DIRECTOR Trustee or director | 1 | $0 |
| ERICA KLUS | SECRETARY Trustee or director, Officer | 2 | $0 |
| MARKK KROEMER | DIRECTOR Trustee or director | 1 | $0 |
| DAVID LEE | VICE PRESIDE Trustee or director, Officer | 2 | $0 |
| CRYSTAL MEIER | DIRECTOR Trustee or director, Officer | 2 | $0 |
| KENDALL PETERSEN | DIRECTOR Trustee or director | 1 | $0 |
| ROGER SCHLITTER | TREASURER Trustee or director, Officer | 2 | $0 |
990 for the year ended March 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JOANNE HARDINGER | DIRECTOR Trustee or director | 1 | $0 |
| TOM DETTMER | VICE PRESIDENT Trustee or director, Officer | 1 | $0 |
| GARY ANDERSON | DIRECTOR Trustee or director | 1 | $0 |
| KENDALL PETERSEN | DIRECTOR Trustee or director | 1 | $0 |
| STEVE MUSSON | TREASURER Trustee or director, Officer | 2 | $0 |
| ERICA KLUS | SECRETARY Trustee or director, Officer | 2 | $0 |
| ROBERT KINSEY | PRESIDENT Trustee or director, Officer | 2 | $0 |
| DAVID LEE | SECRETARY Trustee or director, Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 565, MASON CITY, IA 50402-0565
- Principal officer (990 for 2024)
- DAVID LEE, PO BOX 565, MASON CITY, IA 50402
- Signed the 990
- DAVID LEE, VICE PRESIDENT
- Phone
- (641) 424-1243
- Website
- WWW.STOCKMANHOUSE.ORG
- Return prepared by
- HARRISON & ASSOCIATES CPAS PLLC
Mission
TO RESTORE, PRESERVE, PROTECT, OWN AND OPERATE HISTORIC AND/OR ARCHITECTURALLY SIGNIFICANT BUILDINGS AND SITES IN MASON CITY, EDUCATE THE PUBLIC ABOUT HISTORIC ARCHITECTURE AND ENCOURAGE OTHERS TO DO THE SAME.
Program accomplishments
- TO EDUCATE AND PROMOTE PRESERVATION IN HISTORICAL STRUCTURES SUCH AS THE STOCKMAN HOUSE, A FRANK LLOYD WRIGHT ARCHITECTURAL PRODUCTION, AND OTHER HISTORICAL STRUCTURES IN AND AROUND MASON CITY, IOWA.Expenses $73,401 · revenue $36,518
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 March, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | March 31, 2026 | August 17, 2026 | Not on file |
| 2024 | March 31, 2025 | August 15, 2025 | 990 on file |
| 2023 | March 31, 2024 | August 15, 2024 | 990 on file |
IRS record
- EIN
- 42-1310777
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1988
- Accounting year ends
- March
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $741,341
- Income (IRS master file)
- $98,100
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | March 2025 | $78,163 | $86,814 | $741,341 | XML |
| 990 | March 2024 | $54,322 | $93,132 | $749,992 | XML |
| 990 | March 2023 | $67,481 | $106,870 | $788,802 | XML |
| 990 | March 2022 | $53,141 | $84,457 | $828,191 | IRS |
| 990 | March 2021 | – | – | – | IRS |
| 990 | March 2019 | – | – | – | 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 42-1310777).
Questions about RIVER CITY SOCIETY FOR HISTORIC PRESERVATION
- What is the EIN of RIVER CITY SOCIETY FOR HISTORIC PRESERVATION?
- The employer identification number (EIN) of RIVER CITY SOCIETY FOR HISTORIC PRESERVATION is 42-1310777.
- Is RIVER CITY SOCIETY FOR HISTORIC PRESERVATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1988.
- Are donations to RIVER CITY SOCIETY FOR HISTORIC PRESERVATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does RIVER CITY SOCIETY FOR HISTORIC PRESERVATION 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 RIVER CITY SOCIETY FOR HISTORIC PRESERVATION due?
- The return for tax year 2025 (the year ending March 31, 2026) is due August 17, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did RIVER CITY SOCIETY FOR HISTORIC PRESERVATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended March 2025.
- Who is the principal officer of RIVER CITY SOCIETY FOR HISTORIC PRESERVATION?
- The 990 for the year ended March 31, 2025 names DAVID LEE.
- Who are the officers and directors of RIVER CITY SOCIETY FOR HISTORIC PRESERVATION?
- The 990 for the year ended March 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does RIVER CITY SOCIETY FOR HISTORIC PRESERVATION have?
- On its 990 for the year ended March 31, 2025 it reported revenue of $78,163, expenses of $86,814 and total assets of $741,341 at year end.
Other nonprofits in MASON CITY
- GOOD SHEPHERD GERIATRIC CENTER INC EIN 42-0725236 · last filed 990 for 2025
- PRAIRIE RIDGE INTEGRATED BEHAVIORAL HEALTHCARE EIN 42-0947309 · last filed 990 for 2025
- NORTH IOWA VOCATIONAL CENTER INC EIN 42-0951757 · last filed 990 for 2025
- NORTH IOWA COMMUNITY ACTION ORGANIZATION EIN 42-0921505 · last filed 990 for 2025
- NORTH IOWA AREA COMMUNITY COLLEGE FOUNDATION EIN 23-7023677 · last filed 990 for 2025
- IOWA ODD FELLOWS AND ORPHANS HOME EIN 42-0818810 · last filed 990 for 2025
- ELDERBRIDGE AGENCY ON AGING EIN 42-1155559 · last filed 990 for 2025
- CHARLIE BROWN COMMUNITY DAY CARE CENTER EIN 42-0938576 · last filed 990 for 2025