Idaho

2 congressional districts.

Map

  • Very compact (0 to 19)
  • Compact (20 to 39)
  • Middle (40 to 59)
  • Irregular (60 to 79)
  • Very irregular (80 to 100)

Select a district for details.

Map used in 2026

2021 Commission for Reapportionment plan (C03)

Drawn by
a redistricting commission
Enacted
2021-11-10
Changed since 2024
No

Source: All About Redistricting, Loyola Law School (secondary source) (checked 2026-11-04)

Districts

DistrictIrregularityNational rank
ID-01Irregularity score 39 Compact269th least compact
ID-02Irregularity score 13 Very compact400th least compact

Scores describe shape, not intent. How scores work

Idaho's senators

Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from

Partisan fairness

With only 2 districts, one seat changing hands swings these measures too far to mean much, so the site scores states with 4 or more. How fairness scores work