Castle High School
Funding Overview
From IRS Form 990 filings · 2021–2025
Total received
$46K
Foundation funders
6
Grants recorded
12
Years covered
2021–2025
Who funds Castle High School?
Castle High School is funded by 6 grantmakers, led by Shoes and Clothes for Kids ($26K), Oahu Interscholastic Association ($10K), The Blackbaud Giving Fund ($5K). In total, IRS Form 990 filings record $46K in grants to Castle High School between 2021–2025.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| Shoes and Clothes for Kids | $26,142 | 1 | 2021 |
| Oahu Interscholastic Association | $10,100 | 4 | 2022–2025 |
| The Blackbaud Giving Fund | $5,450 | 1 | 2023 |
| Koch Foundation Inc | $3,000 | 4 | 2022–2025 |
| Newburgh Elementary School Pat | $600 | 1 | 2021 |
| Bussing-Koch Foundation Inc | $250 | 1 | 2025 |
Funding over time
Grant dollars and counts received per year
From 2021 to 2025, annual grant giving ranged from $3K (2025) to $27K (2021). In 2025 it made 3 grants totaling $3K.
What grants has Castle High School received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | Oahu Interscholastic Association | ATHLETICS | $1,900 |
| 2025 | Koch Foundation Inc | Charitable Operations | $500 |
| 2025 | Bussing-Koch Foundation Inc | general operating expense | $250 |
| 2024 | Oahu Interscholastic Association | ATHLETICS | $2,500 |
| 2024 | Koch Foundation Inc | Charitable Operations | $500 |
| 2023 | The Blackbaud Giving Fund | GENERAL SUPPORT | $5,450 |
| 2023 | Oahu Interscholastic Association | ATHLETICS | $1,500 |
| 2023 | Koch Foundation Inc | Charitable Operations | $1,000 |
| 2022 | Oahu Interscholastic Association | ATHLETICS | $4,200 |
| 2022 | Koch Foundation Inc | Charitable Operations | $1,000 |
| 2021 | Shoes and Clothes for Kids | TO IMPROVE K-8 ATTENDANCE BY ELIMINATING LACK OF CLOTHING, SHOES & SCHOOL SUPPLIES AS BARRIERS. | $26,142 |
| 2021 | Newburgh Elementary School Pat | SENIOR SCHOLARSHIPS | $600 |
Frequently Asked Questions
Who funds Castle High School?
Castle High School is funded by 6 grantmakers, led by Shoes and Clothes for Kids ($26K), Oahu Interscholastic Association ($10K), The Blackbaud Giving Fund ($5K). In total, IRS Form 990 filings record $46K in grants to Castle High School between 2021–2025.
Who is Castle High School's largest funder?
Shoes and Clothes for Kids is the largest recorded funder of Castle High School, with $26K across 1 grant (2021).
How much grant funding has Castle High School received?
IRS 990 filings record $46K in grants to Castle High School across 12 grants from 6 funders between 2021–2025. Filings are published on a delay, so recent grants may not appear yet.
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Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
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