# Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities

Arts education nonprofit in Pittsburgh, Pennsylvania 15206. EIN 47-4340370. Data as of November 9, 2026.

Page: https://backpr.com/find/nonprofit/474340370-mary-lou-williams-institute-for-exc-ellence-in-the-arts-and-humanities

## IRS facts

- Type: Arts education (IRS activity code A25)
- Tax status: 501(c)(3), contributions deductible, recognized 2022
- Source: IRS Business Master File, posted October 13, 2026: https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf

## Local context

- Allegheny County, Pennsylvania: about 225,556 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
- 784 youth and community nonprofits in this directory in the county: 3.5 per 1,000 children.
- Licensed programs in Pittsburgh: 262 licensed child care centers: https://backpr.com/find/pennsylvania/pittsburgh
- Pennsylvania rules: https://backpr.com/resources/states/pennsylvania

## Questions

**What is Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities's EIN?**

Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities's EIN (Employer Identification Number) is 47-4340370. 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 Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities a nonprofit?**

Yes. The IRS lists Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities in Pittsburgh, Pennsylvania as tax-exempt under section 501(c)(3), recognized since 2022. 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 Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities tax-deductible?**

Yes, the IRS lists gifts to Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities 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 Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities do?**

The IRS classifies Mary Lou Williams Institute for Exc Ellence in the Arts and Humanities as: Arts education. It has not filed a Form 990 or 990-EZ with a mission statement that we have loaded.

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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.