RICHARD KING MELLON FOUNDATION DTD 01-01-47

Nonpartisan civic infrastructure

AllCiv·Legis1

Richard King Mellon Foundation DTD 01-01-47

Private foundation

Foundations · LIGONIER, PA · EIN 25-1127705

Donations are tax-deductible

FY ending 2024-12-31

Revenue

—

Expenses

—

Assets

$2.7B

Liabilities

$414.5M

No revenue/expense data reported.

Campaign Spending

—

Lobbying

—

Grants Given

$116.7M

RICHARD KING MELLON FOUNDATION DTD 01-01-47

Your actions

PO BOX 945

Ligonier, PA, 15658-094

Public records

Full 990 PDFs going back to 2001, plus parsed financial extracts. The easiest place to read actual filings.

IRS-side authoritative source. Confirms current exempt status and pulls the latest determination letter.

These open in a new tab. AllCiv doesn't host filings directly — these are the authoritative public-record sources.