Counties with the highest cancer rates in Montana

Several factors contribute to cancer rates, from personal habits and genetics to air pollution or groundwater quality in a given area. People experiencing social, economic, or environmental disadvantages are disproportionately affected by high cancer rates in certain regions—including access or barriers to early screening and care.

Cancer rates also fluctuate by jobs: Higher rates of cancer can be found among meat industry and rubber manufacturing workers, and farmers.

Stacker compiled the counties with the highest cancer rates in Montana using data from the CDC. Keep reading to see where in your state cancer cases are the most common.

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#56. Blaine County

- Cancer rate per 100,000, 2016-2020: 418.0
- Age-adjusted rate per 100,000, 2016-2020: 363.0

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#55. Garfield County

- Cancer rate per 100,000, 2016-2020: 423.5
- Age-adjusted rate per 100,000, 2016-2020: 268.4

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#54. Richland County

- Cancer rate per 100,000, 2016-2020: 427.2
- Age-adjusted rate per 100,000, 2016-2020: 365.2

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#53. Gallatin County

- Cancer rate per 100,000, 2016-2020: 441.8
- Age-adjusted rate per 100,000, 2016-2020: 448.2

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#52. Roosevelt County

- Cancer rate per 100,000, 2016-2020: 447.2
- Age-adjusted rate per 100,000, 2016-2020: 476.6

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#51. Glacier County

- Cancer rate per 100,000, 2016-2020: 462.6
- Age-adjusted rate per 100,000, 2016-2020: 466.0

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#50. Missoula County

- Cancer rate per 100,000, 2016-2020: 477.9
- Age-adjusted rate per 100,000, 2016-2020: 417.3

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#49. Big Horn County

- Cancer rate per 100,000, 2016-2020: 490.2
- Age-adjusted rate per 100,000, 2016-2020: 484.8

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#48. Toole County

- Cancer rate per 100,000, 2016-2020: 490.5
- Age-adjusted rate per 100,000, 2016-2020: 371.5

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#47. Chouteau County

- Cancer rate per 100,000, 2016-2020: 492.0
- Age-adjusted rate per 100,000, 2016-2020: 335.0

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#46. Liberty County

- Cancer rate per 100,000, 2016-2020: 507.4
- Age-adjusted rate per 100,000, 2016-2020: 350.9

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#45. Hill County

- Cancer rate per 100,000, 2016-2020: 507.8
- Age-adjusted rate per 100,000, 2016-2020: 456.7

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#44. Beaverhead County

- Cancer rate per 100,000, 2016-2020: 541.6
- Age-adjusted rate per 100,000, 2016-2020: 358.5

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#43. Dawson County

- Cancer rate per 100,000, 2016-2020: 557.6
- Age-adjusted rate per 100,000, 2016-2020: 424.6

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#42. Cascade County

- Cancer rate per 100,000, 2016-2020: 561.0
- Age-adjusted rate per 100,000, 2016-2020: 425.8

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#41. Judith Basin County

- Cancer rate per 100,000, 2016-2020: 569.0
- Age-adjusted rate per 100,000, 2016-2020: 374.8

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#40. Daniels County

- Cancer rate per 100,000, 2016-2020: 592.4
- Age-adjusted rate per 100,000, 2016-2020: 311.0

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#39. Rosebud County

- Cancer rate per 100,000, 2016-2020: 635.4
- Age-adjusted rate per 100,000, 2016-2020: 543.4

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#38. Wibaux County

- Cancer rate per 100,000, 2016-2020: 642.1
- Age-adjusted rate per 100,000, 2016-2020: 368.0

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#37. Silver Bow County

- Cancer rate per 100,000, 2016-2020: 643.6
- Age-adjusted rate per 100,000, 2016-2020: 479.1

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#36. Lewis and Clark County

- Cancer rate per 100,000, 2016-2020: 644.4
- Age-adjusted rate per 100,000, 2016-2020: 479.7

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#35. Yellowstone County

- Cancer rate per 100,000, 2016-2020: 647.4
- Age-adjusted rate per 100,000, 2016-2020: 519.9

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#34. Teton County

- Cancer rate per 100,000, 2016-2020: 652.8
- Age-adjusted rate per 100,000, 2016-2020: 426.6

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#33. Fallon County

- Cancer rate per 100,000, 2016-2020: 658.2
- Age-adjusted rate per 100,000, 2016-2020: 515.0

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#32. Fergus County

- Cancer rate per 100,000, 2016-2020: 659.1
- Age-adjusted rate per 100,000, 2016-2020: 418.5

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#31. Pondera County

- Cancer rate per 100,000, 2016-2020: 663.2
- Age-adjusted rate per 100,000, 2016-2020: 483.2

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#30. Custer County

- Cancer rate per 100,000, 2016-2020: 671.1
- Age-adjusted rate per 100,000, 2016-2020: 481.2

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#29. Flathead County

- Cancer rate per 100,000, 2016-2020: 673.1
- Age-adjusted rate per 100,000, 2016-2020: 486.6

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#28. Park County

- Cancer rate per 100,000, 2016-2020: 675.8
- Age-adjusted rate per 100,000, 2016-2020: 415.8

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#27. Ravalli County

- Cancer rate per 100,000, 2016-2020: 684.9
- Age-adjusted rate per 100,000, 2016-2020: 404.6

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#26. Granite County

- Cancer rate per 100,000, 2016-2020: 691.7
- Age-adjusted rate per 100,000, 2016-2020: 358.4

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#25. McCone County

- Cancer rate per 100,000, 2016-2020: 692.5
- Age-adjusted rate per 100,000, 2016-2020: 469.3

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#24. Lake County

- Cancer rate per 100,000, 2016-2020: 698.4
- Age-adjusted rate per 100,000, 2016-2020: 465.5

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#23. Madison County

- Cancer rate per 100,000, 2016-2020: 703.4
- Age-adjusted rate per 100,000, 2016-2020: 372.6

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#22. Carbon County

- Cancer rate per 100,000, 2016-2020: 712.9
- Age-adjusted rate per 100,000, 2016-2020: 423.0

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#21. Petroleum County

- Cancer rate per 100,000, 2016-2020: 715.1
- Age-adjusted rate per 100,000, 2016-2020: 442.3

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#20. Sweet Grass County

- Cancer rate per 100,000, 2016-2020: 718.2
- Age-adjusted rate per 100,000, 2016-2020: 427.7

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#19. Deer Lodge County

- Cancer rate per 100,000, 2016-2020: 718.9
- Age-adjusted rate per 100,000, 2016-2020: 426.4

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#18. Valley County

- Cancer rate per 100,000, 2016-2020: 732.8
- Age-adjusted rate per 100,000, 2016-2020: 491.6

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#17. Stillwater County

- Cancer rate per 100,000, 2016-2020: 744.6
- Age-adjusted rate per 100,000, 2016-2020: 466.1

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#16. Powder River County

- Cancer rate per 100,000, 2016-2020: 756.4
- Age-adjusted rate per 100,000, 2016-2020: 420.3

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#15. Sheridan County

- Cancer rate per 100,000, 2016-2020: 757.6
- Age-adjusted rate per 100,000, 2016-2020: 455.7

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#14. Mineral County

- Cancer rate per 100,000, 2016-2020: 785.3
- Age-adjusted rate per 100,000, 2016-2020: 428.0

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#13. Jefferson County

- Cancer rate per 100,000, 2016-2020: 785.5
- Age-adjusted rate per 100,000, 2016-2020: 500.8

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#12. Phillips County

- Cancer rate per 100,000, 2016-2020: 788.7
- Age-adjusted rate per 100,000, 2016-2020: 494.3

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#11. Powell County

- Cancer rate per 100,000, 2016-2020: 789.2
- Age-adjusted rate per 100,000, 2016-2020: 522.5

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#10. Meagher County

- Cancer rate per 100,000, 2016-2020: 812.9
- Age-adjusted rate per 100,000, 2016-2020: 445.7

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#9. Wheatland County

- Cancer rate per 100,000, 2016-2020: 832.7
- Age-adjusted rate per 100,000, 2016-2020: 503.2

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#8. Broadwater County

- Cancer rate per 100,000, 2016-2020: 838.8
- Age-adjusted rate per 100,000, 2016-2020: 525.6

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#7. Prairie County

- Cancer rate per 100,000, 2016-2020: 845.1
- Age-adjusted rate per 100,000, 2016-2020: 545.6

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#6. Carter County

- Cancer rate per 100,000, 2016-2020: 852.5
- Age-adjusted rate per 100,000, 2016-2020: 481.9

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#5. Lincoln County

- Cancer rate per 100,000, 2016-2020: 868.7
- Age-adjusted rate per 100,000, 2016-2020: 473.0

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#4. Sanders County

- Cancer rate per 100,000, 2016-2020: 894.6
- Age-adjusted rate per 100,000, 2016-2020: 469.5

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#3. Musselshell County

- Cancer rate per 100,000, 2016-2020: 944.7
- Age-adjusted rate per 100,000, 2016-2020: 549.7

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#2. Treasure County

- Cancer rate per 100,000, 2016-2020: 998.5
- Age-adjusted rate per 100,000, 2016-2020: 652.2

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#1. Golden Valley County

- Cancer rate per 100,000, 2016-2020: 1,071.3
- Age-adjusted rate per 100,000, 2016-2020: 589.6

Counties with the highest cancer rates in Montana

#56. Blaine County

#55. Garfield County

#54. Richland County

#53. Gallatin County

#52. Roosevelt County

#51. Glacier County

#50. Missoula County

#49. Big Horn County

#48. Toole County

#47. Chouteau County

#46. Liberty County

#45. Hill County

#44. Beaverhead County

#43. Dawson County

#42. Cascade County

#41. Judith Basin County

#40. Daniels County

#39. Rosebud County

#38. Wibaux County

#37. Silver Bow County

#36. Lewis and Clark County

#35. Yellowstone County

#34. Teton County

#33. Fallon County

#32. Fergus County

#31. Pondera County

#30. Custer County

#29. Flathead County

#28. Park County

#27. Ravalli County

#26. Granite County

#25. McCone County

#24. Lake County

#23. Madison County

#22. Carbon County

#21. Petroleum County

#20. Sweet Grass County

#19. Deer Lodge County

#18. Valley County

#17. Stillwater County

#16. Powder River County

#15. Sheridan County

#14. Mineral County

#13. Jefferson County

#12. Phillips County

#11. Powell County

#10. Meagher County

#9. Wheatland County

#8. Broadwater County

#7. Prairie County

#6. Carter County

#5. Lincoln County

#4. Sanders County

#3. Musselshell County

#2. Treasure County

#1. Golden Valley County

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