Charities United States Arts & Culture Cahokia Mounds Museum Society
Cahokia Mounds Museum Society logo

Cahokia Mounds Museum Society

Educating the public on historic cahokia.

Arts & Culture Collinsville, IL EIN 371011900 · IRS Sign up to see website
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75
Integrity Assessment
Strong transparency
75/100 · methodology

About Cahokia Mounds Museum Society

No organisational description on file yet. The metadata below comes directly from the official registry.

Founded
Headquarters
Collinsville, IL
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
A115
IRS subsection
501(c)(03)
Ruling date

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1978

Mission

Educating the public on historic cahokia.

Focus areas & reach

· What they work on and where
Arts & Culture · NTEE A115
Cause tags

How it stacks up against peers

· vs. 8 similar arts & culture in United States
Program spending This charity: 0%
Peer average: 93%
Integrity Assessment This charity: 75
Peer average: 93

Red flags

· All clear
IRS revocation history
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Common questions

· Auto-generated from filings + methodology

Cahokia Mounds Museum Society is a registered arts & culture nonprofit based in Collinsville, IL, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1976 and has been operating for 50 years. Its EIN is 371011900. It has a GiveRadar Integrity Assessment of 75/100 (Strong transparency), indicating well-documented governance, financials, and contact details. This is below the average of 93/100 for arts & culture charities in United States. The organization reports $151K in annual revenue. 49 officers and directors are publicly disclosed. No red flags have been detected.

Cahokia Mounds Museum Society has a GiveRadar Integrity Assessment of 75/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 75 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for arts & culture charities in United States is 93/100.

Cahokia Mounds Museum Society is located in Collinsville, IL, United States. The organization was established in 1976 and has been active for 50 years.

Based on official tax filings, Cahokia Mounds Museum Society has $151K in annual revenue. Its revenue is below the peer average of $1M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Cahokia Mounds Museum Society is classified as a Arts & Culture organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). It has $151K in annual revenue. The organization has 49 disclosed officers and directors.

No red flags have been detected for Cahokia Mounds Museum Society. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

Cahokia Mounds Museum Society has a GiveRadar Integrity Assessment of 75/100 (Strong transparency) and no red flags have been detected, which suggests it is a well-documented organization. It is regulated by the IRS. You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

Among arts & culture charities registered in United States: Cahokia Mounds Museum Society's GiveRadar Integrity Assessment of 75/100 is below the peer average of 93/100. Its annual revenue of $151K is below the peer average of $1M.

Yes, donations to Cahokia Mounds Museum Society are generally tax-deductible in the United States. Cahokia Mounds Museum Society is a 501(c)(3) tax-exempt organization. Its EIN is 371011900, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.

Verified against 4 official sources, last refreshed .

Annual revenue
$100K-$1M
0% to programs
Source: IRS 990 (FY2024) why this matters
Unlock exact figures

Filing history

5 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2024, FY2023, FY2022, FY2021, FY2020.
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Taxes

Tax-deductibility for donors

Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Leadership

DA
Dale Yonker
President

Officers & trustees (13)

Source: Public filings

CH
Chris F•••••••
VICE PRESIDE
CH
Christopher B•••••
SECRETARY
DA
Dale Y•••••
Director
F
F T•••• N••••• P••
Director
HO
Honorable G••••• C•••
Director
JA
Jack K•••••
Director
JU
Judy H•••••
Director
KE
Kenneth W•••••••
Director
LA
Lawrence O T••••••
Director
LI
Lila V•••
Director
LI
Linda K•••
TREASURER
MA
Matt L••••
SECRETARY
WI
William M••••••
PRESIDENT
Full names, contact details & compensation

Free with an account.

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Latest news

From global news sources

No recent news coverage found

News coverage will appear here when articles mention this organization.

Activity timeline

Filings and press mentions, merged

Form filed
$0.2M revenue
FY2024
IRS_990
Form filed
$0.1M revenue
FY2023
IRS_990
Form filed
$0.1M revenue
FY2022
IRS_990
Form filed
$0.4M revenue
FY2021
IRS_990
Form filed
$0.2M revenue
FY2020
IRS_990

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Peer charities

Other arts & culture in United States, by integrity assessment

Charity Score Revenue Program %
Cahokia Mounds Museum Society This page 75 $151,070 -
Paris Community Theater 93 $316,442 100%
Taylor Music Group 93 $100,949 83%
Chinese Center on Long Island Inc 93 $228,712 100%
Boston Festival Orchestra Inc 93 $215,316 94%
Oregon Arts Watch 93 $304,412 84%
Orchestra Santa Monica 93 $329,123 81%
Methow Music Festival Association 93 $217,431 100%
Border Crossing 93 $261,798 100%

Sources and verification

Refreshed

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2024 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 49 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
May 27, 2026
Profile completeness
65%

What we don't know

Honest gaps - our score reflects transparency, not impact

Programs & projects
No named programs listed by the charity
Operating reach
Countries where programs run not specified

Methodology

GiveRadar combines public registry filings, ProPublica Nonprofit Explorer, Charity Navigator, GuideStar, and news archives into a single 0-100 integrity assessment. We don't take a cut of any donation, ever.

Read full methodology

Quick facts about Cahokia Mounds Museum Society

What is Cahokia Mounds Museum Society?
Cahokia Mounds Museum Society is a arts & culture publicly-supported charity (509(a)(2)) based in Collinsville, United States. Educating the public on historic cahokia.
When was Cahokia Mounds Museum Society founded?
Cahokia Mounds Museum Society was founded in 1976.
Who leads Cahokia Mounds Museum Society?
Dale Yonker serves as President.
Where is Cahokia Mounds Museum Society located?
Headquartered in Collinsville, United States.
What is Cahokia Mounds Museum Society's annual budget?
Annual revenue for fiscal year 2024 is approximately $100K-$1M. 0% of expenses go to program services.
Is Cahokia Mounds Museum Society trustworthy?
Cahokia Mounds Museum Society has a GiveRadar Integrity Assessment of 75 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Cahokia Mounds Museum Society's registration number?
IRS EIN: 371011900.
What is Cahokia Mounds Museum Society's website?
http://www.cahokiamounds.org