# Mercer Island Girls Basketball Booster Club

Youth development programs nonprofit in Mercer Island, Washington 98040. EIN 20-3031214. Data as of November 9, 2026.

Page: https://backpr.com/find/nonprofit/203031214-mercer-island-girls-basketball-booster-club

## Mission (the organization's own words)

> The organization's mission is to promote and sponsor girls basketball programs in Washington state.

Source: Form 990-EZ, year ending May 2025: https://projects.propublica.org/nonprofits/organizations/203031214/202600849349200435/full

## IRS facts

- Type: Youth development programs (IRS activity code O50)
- Tax status: 501(c)(3), contributions deductible, recognized 2005
- Source: IRS Business Master File, posted October 13, 2026: https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf

## Finances (IRS Form 990 e-file data)

| Year ending | Revenue | Expenses | Assets | Net assets | Employees | Volunteers | Source |
|---|---|---|---|---|---|---|---|
| May 2025 | $78,546 | $74,659 | $63,279 | $63,279 | - | - | [Form 990-EZ](https://projects.propublica.org/nonprofits/organizations/203031214/202600849349200435/full) |
| May 2021 | $33,430 | $35,505 | $50,325 | $50,325 | - | - | [Form 990-EZ](https://projects.propublica.org/nonprofits/organizations/203031214/202230699349201653/full) |
| May 2020 | $58,977 | $47,861 | $52,400 | $52,395 | - | - | [Form 990-EZ](https://projects.propublica.org/nonprofits/organizations/203031214/202240699349201604/full) |

Revenue sources, year ending May 2025: gifts and grants $0, program fees $55,953, investment income $3.

Growth label: **Steady** (about +6% a year, May 2020 to May 2025). Growth label: we compare total revenue on the oldest and the newest return shown above. Growing means revenue rose by more than 10% a year on average, Shrinking means it fell by more than 10% a year, and Steady means a change between -10% and +10% a year. The rate is the compounded yearly average between the two returns, so it hides ups and downs in between (see the table). We only label groups with returns at least a year apart and at least $5,000 of revenue on the oldest one. This is our own calculation, not an IRS rating or a judgment of quality.

## How it compares

- Revenue rank: 2 of 7 youth development nonprofits in Mercer Island.
- Revenue $78,546 is higher than roughly 10 to 20% of 326 youth development nonprofits in Washington; median $242,921.
- Source: IRS Business Master File, posted October 13, 2026; BackPR analysis.

## Local context

- King County, Washington: about 441,421 children under 18 (U.S. Census Bureau, July 1, 2024): https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/asrh/cc-est2024-agesex-all.csv
- 1,342 youth and community nonprofits in this directory in the county: 3.0 per 1,000 children.
- Licensed programs in Mercer Island: 8 licensed child care centers, 4 school-age programs: https://backpr.com/find/washington/mercer-island
- Washington rules: https://backpr.com/resources/states/washington

## Questions

**What is Mercer Island Girls Basketball Booster Club's EIN?**

Mercer Island Girls Basketball Booster Club's EIN (Employer Identification Number) is 20-3031214. It is the nine-digit number the IRS uses to identify the organization. Source: IRS Exempt Organizations Business Master File posted October 13, 2026.

**Is Mercer Island Girls Basketball Booster Club a nonprofit?**

Yes. The IRS lists Mercer Island Girls Basketball Booster Club in Mercer Island, Washington as tax-exempt under section 501(c)(3), recognized since 2005. This is from the IRS Business Master File posted October 13, 2026. Status can change, so check its current status on the IRS Tax Exempt Organization Search before you donate.

**Are donations to Mercer Island Girls Basketball Booster Club tax-deductible?**

Yes, the IRS lists gifts to Mercer Island Girls Basketball Booster Club as tax-deductible (IRS Business Master File posted October 13, 2026). How much you can deduct depends on your own taxes, and this is not tax advice. Check its current status on the IRS Tax Exempt Organization Search before you donate.

**What does Mercer Island Girls Basketball Booster Club do?**

In its own words on its Form 990 for the year ending May 2025: "The organization's mission is to promote and sponsor girls basketball programs in Washington state." The IRS classifies it as: Youth development programs.

**How much money does Mercer Island Girls Basketball Booster Club take in?**

For the year ending May 2025, Mercer Island Girls Basketball Booster Club reported total revenue of $78,546 and total expenses of $74,659 on its Form 990-EZ (IRS Form 990 e-file data).

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Data as of November 9, 2026. Sources: IRS Business Master File, IRS Form 990 series e-file data, U.S. Census Bureau. No officer or staff names are published.