Zimmerman Family Foundation
The Zimmerman Family Foundation is a private foundation based in Casper, Wyoming. Its 2025 filing reports grants to charitable organizations, primarily in Wyoming, for purposes including tuition assistance, program assistance, program development, and support.
Zimmerman Family Foundation at a glance
In short: Zimmerman Family Foundation gave $1.2M across 19 grants in 2025 (avg $66K), mostly in Wyoming. 11% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $1,248,646
- +78.5% vs 2024
- Grants made (2025)
- 19
- -20.8% vs 2024
- Average grant
- $65,718
- +125.5% vs 2024
- Median grant
- $10,000
- Total assets
- $1,210,885
- -6.8% vs 2024
- New grantees (estimate)
- 11% first-time grantees (2 of 18, 2025; small sample)
- Primary geography
- Wyoming (97% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Zimmerman Family Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 400 East 1St Street Suite 311, Casper, WY 82601-2560
Phone: (307) 473-8975
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Zimmerman Family Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was WYO Sports Ranch ($700K). Together the top 10 received $1.2M.
Grant Size Distribution
152 grants across all recorded years
The most common grant size was under $50K: 136 grants of 152 (89%).
Geographic Focus
Where this funder awards grants
In 2025, 97% of grant dollars went to recipients in Wyoming, 2% to Indiana, and 1% to Missouri. California and Massachusetts each accounted for 0% of grant dollars.
Grant Distribution by State
Share of 2025 grant dollars across all 19 itemized grants.
States
Cities
Is Zimmerman Family Foundation open to new grantees?
11%
first-time grantees, 2025
In 2025, 2 of 18 grantees (11%) were first-time recipients. With only 18 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $3K; repeat grants $34K. How we count
Medians: $3K first-time, $10K repeat.
- 72% of 2025 grantees were also funded in 2024. Method
- Giving grew 117% from 2022 to 2025. Method
- In 2025 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $543K (2020) to $1.2M (2025). In 2025 it made 19 grants totaling $1.2M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| WYO Sports Ranch Casper, WY | Tuition Assistance | $700,000 |
| Highland Park Community Church Casper, WY | Program Assistance | $355,646 |
| Casper Family Connections Casper, WY | Program Assistance | $30,000 |
| Casper Housing Authority Casper, WY | Support Grant | $30,000 |
| Wyoming Rescue Mission Casper, WY | Program Grant | $29,000 |
| Casper Christian School Casper, WY | Program Development | $22,000 |
| 12-24 Club Casper, WY | Program Assistance | $10,000 |
| Boys & Girls Club of Central WYO Casper, WY | Program Development | $10,000 |
| Casper Youth for Christ Casper, WY | Program Development | $10,000 |
| Fellowship of Christian Athletes Kansas City, MO | Program Assistance | $10,000 |
Ready to take the next step with Zimmerman Family Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,210,885 | $1,532,964 | $1,266,224 | $1,248,646 | 19 | $1,250,121 | $623,650 | $52,183 |
| 2024 | $1,299,699 | $1,070,586 | $715,662 | $699,421 | 24 | $701,017 | $255,207 | $60,925 |
| 2023 | $1,300,058 | $647,795 | $746,176 | $729,370 | 35 | $731,465 | $210,661 | $67,534 |
| 2022 | $1,597,931 | $1,415,459 | $590,812 | $576,220 | 34 | $577,510 | $77,821 | $69,993 |
| 2021 | $807,794 | $762,487 | $690,649 | $679,949 | 40 | $681,229 | $229,811 | $42,957 |
| 2020 | $908,680 | $343,569 | $554,630 | $542,509 | 28 | — | $63,484 | $47,159 |
| 2019 | $1,180,687 | $790,965 | $733,227 | $717,638 | 34 | — | $279,566 | $49,407 |
Under IRS private-foundation payout rules, Zimmerman Family Foundation reported a distributable amount of $52K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2025 grants show support for organizations addressing areas such as education, family services, housing, recovery, homelessness, counseling, and Christian ministry. These descriptions reflect the grantees’ stated missions, not a stated mission of the foundation.
For example, Casper Family Connections says it provides children a safe, conflict-free environment for contact with non-custodial parents. Wyoming Rescue Mission says it restores homeless lives to community independence with the love of Christ. Casper Christian School describes its mission as providing Christ-centered academic excellence, and 12-24 Club says it provides a meeting place and support for people recovering from alcohol and drug addictions. Central Wyoming Counseling Center says it provides mental health and counseling services in Wyoming.
Grantmaking
In filing year 2025, the foundation reported 19 grants totaling $1,248,646. Grant amounts ranged from $1,000 to $700,000, with a median of $10,000.
The largest reported grants were $700,000 to Wyo Sports Ranch for tuition assistance and $355,646 to Highland Park Community Church for program assistance. Other grants included $30,000 each to Casper Family Connections and Casper Housing Authority; $29,000 to Wyoming Rescue Mission; $22,000 to Casper Christian School; and $10,000 each to 12-24 Club, Boys & Girls Club of Central Wyo, Casper Youth for Christ, Fellowship of Christian Athletes, and Horizon Internation.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Rhonda S Zimmerman as president/director; Mitchel D Zimmerman as treasurer/director; Eva M Zimmerman as secretary/director; and Michael D Zimmerman, Renee D Stirling, Lily Zimmerman, Cory Stirling, Greg Carroll, Collin Zimmerman, and Austin Zimmerman as directors.
Zimmerman Family Foundation is led by Rhonda S. Zimmerman, President & Director since 2020 (on filings since 2019); none of the 16 officers listed in 2025 report compensation.
Officers on the 2025 filing
Rhonda S. Zimmerman
President & Director
Director → President & Director, 2020
On filings since 2019
1 hr/week
No compensation reported
Austin Zimmerman
Director
On filings since 2019
1 hr/week
No compensation reported
Collin Zimmerman
Director
On filings since 2019
1 hr/week
No compensation reported
Cory Stirling
Director
On filings since 2019
1 hr/week
No compensation reported
Eva M. Zimmerman
Secretary & Director
Director → Secretary & Director, 2022
On filings since 2019
1 hr/week
No compensation reported
Greg Carroll
Director
On filings since 2019
1 hr/week
No compensation reported
Lily Zimmerman
Director
On filings since 2019
1 hr/week
No compensation reported
Mackenzie Stirling
Director
On filings since 2019
1 hr/week
No compensation reported
Michael D. Zimmerman
Director
On filings since 2019
1 hr/week
No compensation reported
Mitchel D. Zimmerman
Treasurer & Director
Director → Treasurer & Director, 2022
On filings since 2019
1 hr/week
No compensation reported
Renee D. Stirling
Director
On filings since 2019
1 hr/week
No compensation reported
Clayton Stirling
Director
On filings since 2022
1 hr/week
No compensation reported
Elaina Stirling
Director
On filings since 2022
1 hr/week
No compensation reported
Kendra Jarrard
Director
On filings since 2022
1 hr/week
No compensation reported
Izabelle Zimmerman
Director
New on the 2025 filing
1 hr/week
No compensation reported
Jenelle Zimmerman
Director
New on the 2025 filing
1 hr/week
No compensation reported
Former officers (1)
- Former: Gail D. Zimmerman (2019–2024) — Director
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Zimmerman Family Foundation
How much does Zimmerman Family Foundation give each year?
Zimmerman Family Foundation gave $1.2M across 19 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $699K across 24 grants.
What is Zimmerman Family Foundation's typical grant size?
Zimmerman Family Foundation's median grant in 2025 was $10,000, and its average grant was $65,718, across 19 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Zimmerman Family Foundation that year got $3K on average.
Where does Zimmerman Family Foundation give grants?
Zimmerman Family Foundation gives mostly in Wyoming: 97% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Casper, WY (14 grants).
Does Zimmerman Family Foundation give general operating support?
Not in 2025: none of the 19 grants with a stated purpose on Zimmerman Family Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Program Assistance" (8 grants), "Program Development" (5 grants) and "Program Grant" (3 grants).
Who are Zimmerman Family Foundation's largest grantees?
Zimmerman Family Foundation's largest 2025 grantees include WYO Sports Ranch ($700,000), Highland Park Community Church ($355,646) and Casper Family Connections ($30,000), according to its 2025 IRS Form 990-PF. Together they received 87% of its itemized 2025 grant dollars.
How large is Zimmerman Family Foundation?
Zimmerman Family Foundation reported $1.2M in total assets on its 2025 IRS Form 990-PF. It paid out $1.3M in qualifying distributions that year, against a required minimum of $52K (roughly 5% of its investment assets).
What does Zimmerman Family Foundation fund?
No mission statement for the foundation is provided. Its 2025 grants show support for organizations addressing areas such as education, family services, housing, recovery, homelessness, counseling, and Christian ministry. See mission & focus areas ↑
How do I apply for a grant from Zimmerman Family Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Zimmerman Family Foundation's EIN?
Zimmerman Family Foundation's EIN (Employer Identification Number) is 83-0322568. IRS Form 990 filing data is available on this page for 2019–2025.
Does Zimmerman Family Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS August 12, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS July 7, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Zimmerman Family Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Zimmerman Family Foundation funder profile. GrantGraph. Retrieved October 10, 2026, from https://grantable.co/funders/zimmerman-family-foundation-morg_74be2a83e8194af4a604d06d43ab3817
BibTeX
@misc{grantable_830322568_2026,
author = {{Grantable}},
title = {{Zimmerman Family Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/zimmerman-family-foundation-morg_74be2a83e8194af4a604d06d43ab3817},
note = {Accessed 2026-10-10. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Zimmerman Family 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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