Mary Kathleen Costello
Judge, U.S. District Court for the Eastern District of Pennsylvania. Born 1968.
Federal judicial service
Newest firstJudge, U.S. District Court for the Eastern District of Pennsylvania
- Appointed by
- Joseph R. Biden (Democratic)
- Nominated
- Jun 13, 2024
- Senate vote
- 52 to 41
- Confirmed
- Sep 17, 2024
- Commissioned
- Sep 19, 2024
Other federal judicial service
- U.S. Magistrate Judge, U.S. District Court for the Eastern District of Pennsylvania, 2024
Education
- B.A., Temple University, 1998
- J.D., Temple University James E. Beasley School of Law, 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
DataSources: Federal Judicial Center, Biographical Directory of Article III Federal JudgesData as of Oct 29, 2026
A work of the U.S. government, not under copyright (17 U.S.C. 105).