Western District of Washington / Appointed 1988 / Senior status since 2004

Thomas Samuel Zilly

Judge, U.S. District Court for the Western District of Washington

Appointed by President Ronald Reagan in 1988 and confirmed by voice vote, Thomas Samuel Zilly is a Judge on the U.S. District Court for the Western District of Washington. He earned a law degree from Cornell Law School in 1962. Rulings & record ↓ Sources ↓

Born
1935 · age 91
Appointed by
Ronald Reagan, 1988
Confirmed
by voice vote
Education
University of Michigan 1956 · Cornell Law School 1962
Succeeded by
James L. Robart

Federal judicial service

YearCourtAppointed byVote
1988Western District of WashingtonReagan (R)Voice vote

Party letters show the appointing president’s party, not the judge’s own. A voice vote means the chamber approved aloud. No senator-by-senator tally is recorded.

Confirmation vote

Voice vote

The Senate approved this confirmation aloud, with no senator-by-senator tally recorded. Recorded roll-call votes begin in 1989.

Education

Judicial Record

Caseload & case types

In our data, Zilly was assigned 8,641 district-court cases (1975–2026). Median time from filing to termination: 229 days across 8,523 closed cases.

Personal-injury torts18%
Contract15%
Prisoner & habeas13%
Civil rights11%
Labor & ERISA10%
Other federal statutes8%
Other25%

Case assignment is from CourtListener’s PACER-derived docket records: a partial sample, not a complete caseload, reflecting the judge last assigned each case. How we count.

On appeal

Of 268 of Zilly’s decisions reviewed on the merits by the U.S. courts of appeals in our data, 212 were affirmed, 24 reversed or vacated, and 32 affirmed in part and reversed in part. This is a historical count of appellate outcomes for cases we could match, not a judgment of the judge, and not a complete record. How we count.

In our data, Zilly authored 107 published opinions for the court (1988–2011). Most cited: Shurgard Storage Centers, Inc. v. Safeguard Self Storage, Inc. (62 citations).

A selective record from published opinions in the CourtListener corpus, not every ruling; most unpublished district orders are not included. Counts and rankings are objective and recomputable: how we count. We describe the record, not the judge.

Recent & notable rulings

Showing the 15 most-cited of 107 authored opinions in our data. “Cited” is inbound citations across the CourtListener corpus. Case links open the ruling’s full text (CourtListener) or its page here; read the methodology and verify against the primary source.

Questions & answers

Who appointed Thomas Samuel Zilly?
President Ronald Reagan appointed Thomas Samuel Zilly to the U.S. District Court for the Western District of Washington in 1988.
Was Thomas Samuel Zilly appointed by a Democrat or a Republican?
Thomas Samuel Zilly was appointed by President Ronald Reagan, a Republican. JudicialFinder records the appointing president's party, not a judge's own politics.
What was Thomas Samuel Zilly's confirmation vote?
Thomas Samuel Zilly was confirmed by voice vote on April 19, 1988. No senator-by-senator tally was recorded.
Which court is Thomas Samuel Zilly on?
Thomas Samuel Zilly is a Judge on the U.S. District Court for the Western District of Washington.

Sources

Each fact on this page traces to a primary public record.

How we source & reconcile data → Data & Sources

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38 years on the U.S. District Court for the Western District of Washington. Data as of 2026-08-10. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).