John & Diane Prewitt Family Foundation
The John & Diane Prewitt Family Foundation is a private foundation based in Wildomar, California. Its 2024 filing reports grants to charitable organizations, including a $40,000 award to the Foundation Fighting Blindness and smaller grants to organizations in California and elsewhere.
Key facts about John & Diane Prewitt Family Foundation
In short: John & Diane Prewitt Family Foundation gave $58K across 19 grants in 2024 (avg $3K), mostly in California. 37% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- EIN
- 94-3366671
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $58,000
- Grants made (2024)
- 19
- Average grant
- $3,053
- Median grant
- $1,000
- New grantees (estimate)
- 37% first-time grantees (7 of 19, 2024; small sample)
- Total assets
- $1,051,416
- Primary geography
- California (86% of itemized 2024 grant dollars)
- How to apply
- The filing says requests may be made in writing or orally. Full details ↓
- Deadline
- None listed.
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$1.1M
-2.8% YoY
Annual Giving
$58K
-43.7% YoY
Grant Count
19
+26.7% YoY
Avg Grant Size
$3K
-55.5% YoY
Under IRS private-foundation payout rules, John & Diane Prewitt Family Foundation reported a distributable amount of $25K for 2024 — the minimum it must pay out in qualifying distributions.
Is John & Diane Prewitt Family Foundation open to new grantees?
37%
first-time grantees, 2024
In 2024, 7 of 19 grantees (37%) were first-time recipients. With only 19 grantees, that is a small sample: one grantee more or less moves the share by about 5 points. First grants averaged $1K; repeat grants $4K. How we count
Medians: $1K first-time, $1K repeat.
- 63% of 2024 grantees were also funded in 2023. Method
- Giving fell 68% from 2021 to 2024. Method
- In 2024 it paid out 1% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
The available information does not state a mission for the foundation. Its 2024 grants show support for a range of organizations. For example, the P.E.O. Foundation says it supports educational and charitable funds and scholarships for women; Canine Companions for Independence says it provides trained service dogs and ongoing support to people with disabilities; and the Santa Rosa Plateau Foundation says it fosters youth environmental stewardship. These are the grantees’ stated missions, not the foundation’s.
Grantmaking
In 2024, the foundation reported 19 grants totaling $58,000. Grant amounts ranged from $1,000 to $40,000, with a median of $1,000. The largest listed award was $40,000 to the Foundation Fighting Blindness. Other listed recipients included the P.E.O. Foundation, Canine Companions for Independence, the Pat Tillman Foundation, the University of Redlands, and the Santa Rosa Plateau Foundation, each receiving $1,000. The 2024 filing also identifies direct charitable cash donations to the Foundation Fighting Blindness and the Southern California Food & Allest Institute.
Review Cycle
None listed.
How to Apply
The filing says requests may be made in writing or orally. It lists no restrictions on awards and says the foundation does not restrict giving to preselected organizations.
Ready to take the next step with John & Diane Prewitt Family Foundation?
Geographic Focus
Where this funder awards grants
The foundation is based in California. Its 2024 filing reports that 86% of grant dollars went to recipients in California; recipient shares were also reported for Texas (3%), Tennessee (2%), Illinois (2%), and Iowa (2%).
Grant Distribution by State
Share of 2024 grant dollars across all 19 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $58K (2024) to $185K (2022). In 2024 it made 19 grants totaling $58K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Foundation Fighting Blindness ($40K). Together the top 10 received $49K.
Grant Size Distribution
121 grants across all recorded years
The most common grant size was under $50K: 114 grants of 121 (94%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Foundation Fighting Blindness Santa Monica, CA | Charitable | $40,000 |
| St Judes Children's Research Hospital Memphis, TN | Charitable | $1,000 |
| Santa Rosa Plateau Foundation Murrieta, CA | Charitable | $1,000 |
| Pat Tillman Foundation Chicago, IL | Charitable | $1,000 |
| Mercy Ships Lindale, TX | Charitable | $1,000 |
| PEO Foundation Des Moines, IA | Charitable | $1,000 |
| Canine Companions for Independence Oceanside, CA | Charitable | $1,000 |
| Southern California Food & Allest Institute Long Beach, CA | Charitable | $1,000 |
| International Fellowship of Christians and Jews Washington, DC | Charitable | $1,000 |
| University of Redlands Redlands, CA | Charitable | $1,000 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Assets | Revenue | Expenses | Grants |
|---|---|---|---|---|
| 2024 | $1,051,416 | $28,648 | $59,440 | $58,000 (19 grants) |
| 2023 | $1,082,208 | $107,778 | $104,465 | $103,000 (15 grants) |
| 2022 | $1,139,954 | $238,014 | $186,364 | $185,000 (35 grants) |
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $1,051,416 | $1,082,208 | $1,139,954 |
| Revenue | $28,648 | $107,778 | $238,014 |
| Expenses | $59,440 | $104,465 | $186,364 |
| Qualifying Distributions | $278 | $278 | $185,253 |
| Net Investment Income | $27,486 | $27,391 | $32,203 |
| Distributable Amount | $25,461 | $29,817 | $33,238 |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists John I Prewitt as president and director; Diane E Prewitt as vice president and director; Cheryl D Hart as treasurer and director; and Carissa D Hart, John A Prewitt, and Jennifer Prewitt as directors.
John & Diane Prewitt Family Foundation is led by John A Prewitt, President, Director & Director on every filing since 2020; none of the 5 officers listed in 2024 report compensation.
Officers on the 2024 filing
John A Prewitt
President, Director & Director
On filings since 2020
1 hr/week
No compensation reported
Carissa D Hart
Director
On filings since 2020
No compensation reported
Cheryl D Hart
Treasurer & Director
On filings since 2020
No compensation reported
Diane E Prewitt
Vice President & Director
On filings since 2020
1 hr/week
No compensation reported
Jennifer Prewitt
Director
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Contact
Application contact: John I Prewitt
Mailing address: 35626 Bovard Street, Fremont, CA 92595-7110
Phone: (951) 609-9508
Frequently asked questions about John & Diane Prewitt Family Foundation
How much does John & Diane Prewitt Family Foundation give each year?
John & Diane Prewitt Family Foundation gave $58K across 19 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $103K across 15 grants.
What is John & Diane Prewitt Family Foundation's typical grant size?
John & Diane Prewitt Family Foundation's median grant in 2024 was $1,000, and its average grant was $3,053, across 19 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from John & Diane Prewitt Family Foundation that year got $1K on average.
Where does John & Diane Prewitt Family Foundation give grants?
John & Diane Prewitt Family Foundation gives mostly in California: 86% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Murrieta, CA (2 grants).
Does John & Diane Prewitt Family Foundation give general operating support?
Not in 2024: none of the 19 grants with a stated purpose on John & Diane Prewitt Family Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (19 grants).
Who are John & Diane Prewitt Family Foundation's largest grantees?
John & Diane Prewitt Family Foundation's largest 2024 grantees include Foundation Fighting Blindness ($40,000), St Judes Children's Research Hospital ($1,000) and Santa Rosa Plateau Foundation ($1,000), according to its 2024 IRS Form 990-PF. Together they received 72% of its itemized 2024 grant dollars.
How large is John & Diane Prewitt Family Foundation?
John & Diane Prewitt Family Foundation reported $1.1M in total assets on its 2024 IRS Form 990-PF. It paid out $278 in qualifying distributions that year, against a required minimum of $25K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does John & Diane Prewitt Family Foundation fund?
The available information does not state a mission for the foundation. Its 2024 grants show support for a range of organizations. For example, the P.E.O. See mission & focus areas ↑
How do I apply for a grant from John & Diane Prewitt Family Foundation?
The filing says requests may be made in writing or orally. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is John & Diane Prewitt Family Foundation's EIN?
John & Diane Prewitt Family Foundation's EIN (Employer Identification Number) is 94-3366671. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Here's the math on researching John & Diane Prewitt Family Foundation by hand.
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