District of Arizona / Appointed 2014 / Active
Portrait of Diane Joyce Humetewa

Diane Joyce Humetewa

Judge, U.S. District Court for the District of Arizona

Appointed by President Barack Obama in 2014 and confirmed by the Senate 960, Diane Joyce Humetewa is a Judge on the U.S. District Court for the District of Arizona. She earned a law degree from Arizona State University College of Law (now Sandra Day O’Connor College of Law) in 1993. Sources ↓

Born
1964 · age 62
Appointed by
Barack Obama, 2014
Confirmed
96–0
Education
Arizona State 1987 · Arizona State College of Law (now Sandra Day O’Connor College of Law) 1993

Federal judicial service

YearCourtAppointed byVote
2014District of ArizonaObama (D)96–0

Party letters show the appointing president’s party, not the judge’s own.

Confirmation vote

Nomination Confirmed 960 on May 14, 2014 · 113th Congress, Roll Call 149. Each senator links to their judicial-voting record.

Voted to confirm · 96

50 D, 44 R, 2 I

Did not vote · 4

3 D, 1 R

Education

Judicial Record

Caseload & case types

In our data, Humetewa was assigned 3,650 district-court cases (1996–2026). Median time from filing to termination: 176 days across 2,834 closed cases.

Other civil matters37%
Prisoner & habeas22%
Civil rights8%
Other federal statutes7%
Criminal5%
Contract5%
Other16%

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 136 of Humetewa’s decisions reviewed on the merits by the U.S. courts of appeals in our data, 103 were affirmed, 25 reversed or vacated, and 8 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.

Questions & answers

Who appointed Diane Joyce Humetewa?
President Barack Obama appointed Diane Joyce Humetewa to the U.S. District Court for the District of Arizona in 2014.
Was Diane Joyce Humetewa appointed by a Democrat or a Republican?
Diane Joyce Humetewa was appointed by President Barack Obama, a Democrat. JudicialFinder records the appointing president's party, not a judge's own politics.
What was Diane Joyce Humetewa's confirmation vote?
The Senate confirmed Diane Joyce Humetewa 96–0 on May 14, 2014.
Which court is Diane Joyce Humetewa on?
Diane Joyce Humetewa is a Judge on the U.S. District Court for the District of Arizona.

Sources

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

How we source & reconcile data → Data & Sources

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