Explore Childrens Museum Of Sun Prairie

  • Sun Prairie, WI
  • Tax exemption issued: Jan. 2020
  • EIN: 84-3703166

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Arts, Culture and Humanities / Children's Museums (NTEE)

Donations to this organization are tax deductible.

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending June
2025

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$382,827
Expenses
$406,027
Net Income
-$23,200
Net Assets
$203,521
Notable Sources of Revenue Percent of Total Revenue
Contributions $153,768
40.2%
Program Services $236,742
61.8%
Investment Income $2,773
0.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$10,372
Sales of Assets $0
Net Inventory Sales -$84
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $72,683
17.9%
Professional Fundraising Fees $0
Other Salaries and Wages $103,826
25.6%
Assets/Debt
Total Assets $444,008
Total Liabilities $240,487
Net Assets $203,521
Compensation
Key Employees and Officers Compensation Related Other
Katherine Kamoku (Executive Director) $74,092 $0 $0
Adam Schleicher (Chair) $0 $0 $0
Elizabeth Knudten (Secretary) $0 $0 $0
Kyle Ager (Treasurer) $0 $0 $0
Emily Arevalo (Director) $0 $0 $0
Kayla Jensen (Director) $0 $0 $0
Jennifer Apodaca (Director) $0 $0 $0
Todd Labeau (Director) $0 $0 $0
Kathleen Labeau (Director) $0 $0 $0
Josh Page (Director) $0 $0 $0
Deanna Popke (Director) $0 $0 $0
Caroline Strauss (Director Through February) $0 $0 $0
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Document Links

990
Filed on May 7, 2026

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$530,784
Expenses
$402,550
Net Income
$128,234
Net Assets
$226,721
Notable Sources of Revenue Percent of Total Revenue
Contributions $243,775
45.9%
Program Services $290,535
54.7%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$3,350
Sales of Assets $0
Net Inventory Sales -$176
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $72,692
18.1%
Professional Fundraising Fees $600
0.1%
Other Salaries and Wages $103,451
25.7%
Assets/Debt
Total Assets $479,462
Total Liabilities $252,741
Net Assets $226,721
Compensation
Key Employees and Officers Compensation Related Other
Katherine Kamoku (Executive Director) $70,000 $0 $0
Adam Schleicher (Chair) $0 $0 $0
Linda Crawford (Secretary Through October) $0 $0 $0
Elizabeth Knudten (Secretary Starting October) $0 $0 $0
Kyle Ager (Treasurer) $0 $0 $0
Caroline Strauss (Director) $0 $0 $0
Emily Arevalo (Director) $0 $0 $0
Josh Page (Director) $0 $0 $0
Deanna Popke (Director) $0 $0 $0
Jennifer Apodaca (Director) $0 $0 $0
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Document Links

990
Filed on May 8, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$472,035
Expenses
$522,535
Net Income
-$50,500
Net Assets
$98,487
Notable Sources of Revenue Percent of Total Revenue
Contributions $145,404
30.8%
Program Services $326,860
69.2%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$455
Sales of Assets $0
Net Inventory Sales -$771
Other Revenue $997
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $66,923
12.8%
Professional Fundraising Fees $8,864
1.7%
Other Salaries and Wages $145,355
27.8%
Assets/Debt
Total Assets $386,081
Total Liabilities $287,594
Net Assets $98,487
Compensation
Key Employees and Officers Compensation Related Other
Katherine Kamoku (Executive Director) $56,923 $0 $0
Adam Schleicher (Chair) $0 $0 $0
Linda Crawford (Secretary) $0 $0 $0
Kyle Ager (Treasurer) $0 $0 $0
Julie Sundaram (Director) $0 $0 $0
Kelly Nelson (Director) $0 $0 $0
Elizabeth Knudten (Director) $0 $0 $0
Tenisha Winn (Director Through May) $0 $0 $0
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Document Links

990
Filed on May 1, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$382,659
Expenses
$317,654
Net Income
$65,005
Net Assets
$148,887
Notable Sources of Revenue Percent of Total Revenue
Contributions $215,885
56.4%
Program Services $166,574
43.5%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $71
0.0%
Other Revenue $129
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $36,539
11.5%
Professional Fundraising Fees $1,200
0.4%
Other Salaries and Wages $41,586
13.1%
Assets/Debt
Total Assets $466,722
Total Liabilities $317,835
Net Assets $148,887
Compensation
Key Employees and Officers Compensation Related Other
Katherine Kamoku (Executive Director) $11,538 $0 $0
Adam Schleicher (Chair) $0 $0 $0
Linda Crawford (Secretary) $0 $0 $0
Kyle Ager (Treasurer) $0 $0 $0
Julie Sundaram (Director) $0 $0 $0
Kelly Nelson (Director) $0 $0 $0
Elizabeth Knudten (Director) $0 $0 $0
Tenisha Winn (Director) $0 $0 $0
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Document Links

990
Filed on May 12, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2021

Gross receipts
Less than $50,000

Postcard filings do not ask for a specific revenue amount and provide no additional financial details.

Document Links

990-N

Postcard filing for an organization with gross receipts less than $50,000. These filings do not generate a downloadable form.

Fiscal Year Ending June
2020

Gross receipts
Less than $50,000

Postcard filings do not ask for a specific revenue amount and provide no additional financial details.

Document Links

990-N

Postcard filing for an organization with gross receipts less than $50,000. These filings do not generate a downloadable form.

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Most organizations that have been recognized as tax exempt by the IRS have to file the Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file the Form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes Employer Identification Numbers and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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