Important dates for 2026 Montana Primary Election

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Important dates for 2026 Montana Primary Election

There may be additional rules or exceptions to the deadlines shown. Please see voting information below for more details.

Registering to Vote

In-person applications must be submitted by

Mail-in applications must be received by

Requesting an Absentee Ballot

Absentee ballots may be requested in person until

Mail-in requests must be received by

Voting

Mail-in ballots must be received by

Election Day is

Recent elections

Counties in Montana

  1. Beaverhead County
  2. Big Horn County
  3. Blaine County
  4. Broadwater County
  5. Carbon County
  6. Carter County
  7. Cascade County
  8. Chouteau County
  9. Custer County
  10. Daniels County
  11. Dawson County
  12. Deer Lodge County
  13. Fallon County
  14. Fergus County
  15. Flathead County
  16. Gallatin County
  17. Garfield County
  18. Glacier County
  19. Golden Valley County
  20. Granite County
  21. Hill County
  22. Jefferson County
  23. Judith Basin County
  24. Lake County
  25. Lewis and Clark County
  26. Liberty County
  27. Lincoln County
  28. Madison County
  29. McCone County
  30. Meagher County
  31. Mineral County
  32. Missoula County
  33. Musselshell County
  34. Park County
  35. Petroleum County
  36. Phillips County
  37. Pondera County
  38. Powder River County
  39. Powell County
  40. Prairie County
  41. Ravalli County
  42. Richland County
  43. Roosevelt County
  44. Rosebud County
  45. Sanders County
  46. Sheridan County
  47. Silver Bow County
  48. Stillwater County
  49. Sweet Grass County
  50. Teton County
  51. Toole County
  52. Treasure County
  53. Valley County
  54. Wheatland County
  55. Wibaux County
  56. Yellowstone County

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