Joseph C Duke Foundation

Private foundation · Grantmaker Milwaukee, WI EIN: 41-6554802

Joseph C Duke Foundation is a private foundation, based in Milwaukee, WI. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $1.5M in total assets. In 2025, it awarded 4 grants totaling $183K. Net investment income was $48K.

Joseph C Duke Foundation at a glance

In short: Joseph C Duke Foundation gave $183K across 4 grants in 2025 (avg $46K), mostly in Minnesota. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$182,501
+42.3% vs 2024
Grants made (2025)
4
+0.0% vs 2024
Average grant
$45,625
+42.3% vs 2024
Median grant
$34,219
Total assets
$1,509,931
-8.7% vs 2024
Primary geography
Minnesota (62% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026.

Who Joseph C Duke Foundation funds

How this funder distributes its grants

Top Recipients

Top 4 recipients in 2025

J & L Duke Foundation: $91KJ & L Duke Foundation$91KUniversity of Dubuque: $46KUniversity of Dubuque$46KAmerican Heart Association: $23KAmerican Heart Association$23KChildren's Home Society of Minnesota: $23KChildren's Home Society ofMinnesota$23K

The largest 2025 recipient was J & L Duke Foundation ($91K). Together the top 4 received $183K.

Grant Size Distribution

20 grants across all recorded years

17<$50K3$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 17 grants of 20 (85%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Share of 2025 grant dollars across all 4 itemized grants.

Cities

Saint PaulDubuqueMinneapolisSt PetersburgDalas

How Joseph C Duke Foundation gives

  • Giving grew 97% from 2022 to 2025. Method
  • In 2025 it paid out 174% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$50K$100K$150K$200K4 grants2021 4 grants2022 4 grants2023 4 grants2024 4 grants2025

From 2021 to 2025, annual grant giving ranged from $93K (2021) to $183K (2025). In 2025 it made 4 grants totaling $183K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
J & L Duke Foundation Minneapolis, MNGeneral Operating$91,250
University of Dubuque Dubuque, IAGeneral Operating$45,625
American Heart Association St Petersburg, FLGeneral Operating$22,813
Children's Home Society of Minnesota St. Paul, MNGeneral Operating$22,813
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$1,509,931$76,549$220,210$182,5014$187,146$47,870$107,703
2024$1,653,590$195,535$166,952$128,2504$137,222$166,834$129,896
2023$1,625,052$-29,800$141,455$100,3414$104,925$13,467$123,719
2022$1,796,255$344,699$132,000$92,6804$97,754$311,364$132,881
2021$1,583,559$104,607$129,786$92,6804—$73,368$207,747

Under IRS private-foundation payout rules, Joseph C Duke Foundation reported a distributable amount of $108K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Joseph C Duke Foundation's only listed officer is US Bank N A, Trustee on every filing since 2021 (compensated).

Officers on the 2025 filing

  • US Bank N A

    Trustee

    On filings since 2021

    1 hr/week

    $32K (2021) → $31K (2025)

Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

US Bank N a — Trustee: $31KUS Bank N aTrustee$31K

The highest reported compensation on the 2025 filing was $31K, to US Bank N a (Trustee).

Frequently asked questions about Joseph C Duke Foundation

How much does Joseph C Duke Foundation give each year?

Joseph C Duke Foundation gave $183K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $128K across 4 grants.

What is Joseph C Duke Foundation's typical grant size?

Joseph C Duke Foundation's median grant in 2025 was $34,219, and its average grant was $45,625, across 4 grants on its 2025 IRS Form 990-PF.

Where does Joseph C Duke Foundation give grants?

Joseph C Duke Foundation gives mostly in Minnesota: 62% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Iowa (25%) and Florida (13%).

Does Joseph C Duke Foundation give general operating support?

Yes: 100% of Joseph C Duke Foundation's 2025 grants with a stated purpose (4 of 4) were for general or operating support, per its 2025 IRS Form 990-PF.

How large is Joseph C Duke Foundation?

Joseph C Duke Foundation reported $1.5M in total assets on its 2025 IRS Form 990-PF. It paid out $187K in qualifying distributions that year, against a required minimum of $108K (roughly 5% of its investment assets).

What is Joseph C Duke Foundation's EIN?

Joseph C Duke Foundation's EIN (Employer Identification Number) is 41-6554802. IRS Form 990 filing data is available on this page for 2021–2025.

Data last updated October 2026. Sourced from IRS Form 990-PF filings.

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2021 (received by the IRS November 8, 2021)
  2. Updated Form 990-PF for fiscal year 2022 (received by the IRS November 22, 2023)
  3. Updated Form 990-PF for fiscal year 2023 (received by the IRS November 7, 2023)
  4. Updated Form 990-PF for fiscal year 2024 (received by the IRS October 29, 2024)
  5. Updated Form 990-PF for fiscal year 2025 (received by the IRS November 10, 2025)
  6. IRS filings on file for fiscal years 2021–2025

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Joseph C Duke Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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