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Mary Kathleen Costello

Active judge · U.S. District Court for the Eastern District of Pennsylvania

Mary Kathleen Costello serves on the U.S. District Court for the Eastern District of Pennsylvania. Appointed by Joseph R. Biden and confirmed Sep 17, 2024 by a 52–41 Senate vote. ABA rating: Well Qualified.

Appointed by
Joseph R. Biden
Confirmed
Sep 17, 2024
Senate vote
52–41
ABA rating
Well Qualified
Born
1968

Appointments

  • Judge, U.S. District Court for the Eastern District of PennsylvaniaJoseph R. Biden · Sep 17, 2024

Education

  • Temple UniversityB.A., 1998
  • Temple University James E. Beasley School of LawJ.D., 2001

Career

U.S. Air Force staff sergeant, 1986-1994; Private practice, Philadelphia, Pennsylvania, 2001-2008; Assistant U.S. attorney, Eastern District of Pennsylvania, 2008-2024

More

From the Federal Judicial Center’s biographical directory of federal judges.

Cite or embed this page

Capitol Receipts, “Judge Mary Kathleen Costello, District Court for the Eastern…,” https://www.capitolreceipts.com/judge/j13761866/mary-kathleen-costello (accessed 2026-10-17).