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Incidence Rates Table

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Incidence Rate Report for Montana by County

All Cancer Sites (All Stages^), 2018-2022

All Races (includes Hispanic), Female, All Ages

Sorted by Name

County
 sort alphabetically by name descending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Age-Adjusted Incidence Rate
cases per 100,000
(95% Confidence Interval)
 sort by rate descending
CI*Rank
(95% Confidence Interval)
 sort by CI rank descending
Average Annual Count
 sort by count descending
Recent Trend
Recent 5-Year Trend in Incidence Rates
(95% Confidence Interval)
 sort by trend descending
Montana 2 N/A 424.3 (417.2, 431.5) N/A 3,029 falling falling trend -1.4 (-2.6, -0.5)
US (SEER+NPCR) 1 N/A 424.8 (424.4, 425.2) N/A 891,437 falling falling trend -0.6 (-1.1, -0.1)
Beaverhead County 2 Rural 383.8 (311.1, 469.2) 36 (4, 51) 24 stable stable trend -1.5 (-3.6, 0.6)
Big Horn County 2 Rural 393.8 (328.4, 468.5) 33 (5, 50) 28 stable stable trend -14.5 (-27.5, 0.4)
Blaine County 2 Rural 330.7 (253.2, 425.0) 46 (13, 51) 13 falling falling trend -3.2 (-17.9, -0.5)
Broadwater County 2 Urban 328.6 (259.8, 412.8) 48 (15, 51) 18 falling falling trend -7.4 (-22.3, -0.7)
Carbon County 2 Urban 388.8 (322.9, 465.8) 35 (5, 50) 31 stable stable trend -0.3 (-2.2, 1.6)
Carter County 2 Rural 491.2 (301.9, 770.3) 4 (1, 51) 6 stable stable trend 3.2 (-1.0, 9.2)
Cascade County 2 Urban 397.2 (372.8, 422.8) 30 (17, 42) 224 falling falling trend -1.1 (-4.6, -0.3)
Chouteau County 2 Rural 311.9 (235.8, 407.0) 50 (16, 51) 13 falling falling trend -4.0 (-17.6, -1.2)
Custer County 2 Rural 396.9 (334.4, 468.5) 31 (5, 49) 32 falling falling trend -2.1 (-3.8, -0.5)
Dawson County 2 Rural 425.0 (347.4, 515.5) 21 (2, 48) 24 stable stable trend -1.2 (-3.0, 0.4)
Deer Lodge County 2 Rural 322.9 (265.2, 392.6) 49 (22, 51) 26 stable stable trend -0.4 (-2.7, 1.9)
Fallon County 2 Rural 431.7 (298.3, 605.7) 19 (1, 51) 8 stable stable trend 0.2 (-4.4, 4.8)
Fergus County 2 Rural 329.8 (275.4, 393.3) 47 (22, 51) 30 stable stable trend -1.1 (-3.2, 0.8)
Flathead County 2 Rural 462.1 (438.8, 486.4) 9 (4, 23) 333 stable stable trend 0.5 (-0.1, 1.2)
Gallatin County 2 Urban 393.5 (370.2, 417.9) 34 (18, 43) 226 stable stable trend -0.5 (-1.3, 0.4)
Glacier County 2 Rural 429.2 (361.7, 505.7) 20 (2, 45) 31 stable stable trend -0.8 (-2.9, 1.3)
Golden Valley County 2 Rural 514.4 (272.0, 923.7) 2 (1, 51) 4
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*
Granite County 2 Rural 364.3 (258.1, 507.3) 43 (2, 51) 10 stable stable trend 0.2 (-2.4, 3.1)
Hill County 2 Rural 417.0 (357.3, 484.0) 24 (4, 46) 37 stable stable trend -0.2 (-1.6, 1.1)
Jefferson County 2 Urban 460.3 (393.4, 536.6) 10 (1, 41) 41 stable stable trend 1.4 (-0.9, 4.3)
Judith Basin County 2 Rural 379.5 (242.7, 575.2) 40 (1, 51) 6 falling falling trend -5.3 (-15.1, -1.4)
Lake County 2 Rural 470.3 (428.5, 515.4) 8 (2, 29) 111 stable stable trend 0.5 (-0.9, 2.0)
Lewis and Clark County 2 Urban 418.4 (391.4, 446.9) 23 (11, 38) 201 stable stable trend -0.4 (-1.4, 0.7)
Liberty County 2 Rural 433.2 (276.8, 649.6) 17 (1, 51) 6 stable stable trend 1.7 (-2.5, 6.0)
Lincoln County 2 Rural 420.9 (372.4, 474.9) 22 (5, 43) 72 stable stable trend 0.0 (-1.3, 1.3)
Madison County 2 Rural 369.6 (297.6, 455.8) 42 (7, 51) 25 stable stable trend 0.8 (-1.3, 3.0)
McCone County 2 Rural 455.8 (273.4, 717.3) 12 (1, 51) 5 stable stable trend 0.8 (-5.4, 7.3)
Meagher County 2 Rural 360.6 (211.5, 583.6) 44 (1, 51) 5 stable stable trend -0.8 (-4.9, 3.3)
Mineral County 2 Urban 335.9 (247.2, 450.8) 45 (6, 51) 13 stable stable trend -3.4 (-18.0, 0.6)
Missoula County 2 Urban 435.5 (412.8, 459.2) 16 (8, 31) 297 stable stable trend 0.5 (-0.3, 1.4)
Musselshell County 2 Rural 486.6 (376.9, 621.3) 5 (1, 46) 18 stable stable trend 0.4 (-2.1, 2.9)
Park County 2 Rural 407.4 (356.3, 464.5) 28 (6, 46) 54 stable stable trend 0.0 (-1.5, 1.5)
Phillips County 2 Rural 441.3 (339.1, 569.0) 15 (1, 50) 15 stable stable trend 0.9 (-0.8, 2.7)
Pondera County 2 Rural 414.5 (322.8, 525.1) 26 (2, 50) 17 stable stable trend -0.6 (-2.6, 1.4)
Powder River County 2 Rural 289.0 (170.1, 478.3) 51 (5, 51) 5 stable stable trend -9.5 (-47.3, 0.8)
Powell County 2 Rural 475.3 (376.2, 595.7) 6 (1, 46) 19 stable stable trend 0.4 (-2.4, 3.4)
Prairie County 2 Rural 510.1 (296.3, 853.1) 3 (1, 51) 5 stable stable trend 0.0 (-5.9, 5.7)
Ravalli County 2 Rural 395.9 (363.9, 430.2) 32 (13, 44) 142 stable stable trend 0.2 (-0.6, 1.1)
Richland County 2 Rural 379.7 (312.3, 457.8) 39 (5, 50) 24 falling falling trend -3.2 (-8.9, -0.8)
Roosevelt County 2 Rural 416.2 (337.9, 506.8) 25 (2, 49) 21 stable stable trend 0.2 (-2.1, 2.3)
Rosebud County 2 Rural 551.9 (454.6, 663.8) 1 (1, 27) 26 rising rising trend 2.4 (0.9, 4.1)
Sanders County 2 Rural 455.5 (388.4, 532.3) 13 (1, 42) 49 stable stable trend 1.1 (-0.8, 3.1)
Sheridan County 2 Rural 383.6 (280.7, 517.6) 37 (2, 51) 11 stable stable trend 0.0 (-2.8, 2.8)
Silver Bow County 2 Rural 453.2 (412.6, 496.9) 14 (3, 33) 106 stable stable trend 0.1 (-1.0, 1.2)
Stillwater County 2 Urban 457.4 (380.6, 546.9) 11 (1, 44) 30 stable stable trend 0.8 (-0.6, 2.4)
Sweet Grass County 2 Rural 371.0 (265.6, 509.3) 41 (2, 51) 10 stable stable trend 0.0 (-3.2, 3.2)
Teton County 2 Rural 411.5 (326.0, 514.5) 27 (2, 50) 19 stable stable trend 0.0 (-2.2, 2.2)
Toole County 2 Rural 399.5 (297.7, 527.7) 29 (2, 51) 12 stable stable trend -0.9 (-4.0, 2.0)
Valley County 2 Rural 382.4 (307.4, 471.7) 38 (4, 51) 22 stable stable trend -0.2 (-2.8, 2.4)
Wheatland County 2 Rural 432.9 (277.4, 648.6) 18 (1, 51) 6 stable stable trend 1.7 (-1.6, 5.0)
Yellowstone County 2 Urban 475.0 (456.0, 494.7) 7 (3, 19) 508 falling falling trend -2.5 (-6.0, -0.7)
Daniels County 2 Rural
*
*
3 or fewer
*
*
Garfield County 2 Rural
*
*
3 or fewer
*
*
Petroleum County 2 Rural
*
*
3 or fewer
*
*
Treasure County 2 Rural
*
*
3 or fewer
*
*
Wibaux County 2 Rural
*
*
3 or fewer
*
*

Notes:
Created by statecancerprofiles.cancer.gov on 03/19/2026 5:32 pm.

State Cancer Registries may provide more current or more local data.

Trend
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.


† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (SEER areas use 20 age groups and NPCR areas use 19 age groups). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used for SEER and NPCR incidence rates.

‡ Incidence data come from different sources. The Average Annual Percent Change (AAPC) is based on the APCs calculated by Joinpoint. Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected counties.

Rates and trends are computed using different standards for malignancy. For more information see malignant.html.

^ All Stages refers to any stage. Due to changes in stage coding, Combined Summary Stage with Expanded Regional Codes (2004+) is used for data from Surveillance, Epidemiology, and End Results (SEER) databases and Merged Summary Stage is used for data from National Program of Cancer Registries databases. Due to the increased complexity with staging, other staging variables maybe used if necessary.

⋔ Results presented with the CI*Rank statistics help show the usefulness of ranks. For example, ranks for relatively rare diseases or less populated areas may be essentially meaningless because of their large variability, but ranks for more common diseases in densely populated regions can be very useful. The rates used in CI*Rank are all age-adjusted to the 2000 US standard population using 19 age groups for SEER and NPCR areas. More information about methodology can be found on the CI*Rank website.

When displaying county information, the CI*Rank for the state is not shown because it's not comparable. To see the state CI*Rank please view the statistics at the US By State level.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

1 Source: National Program of Cancer Registries and Surveillance, Epidemiology, and End Results SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute. Based on the 2024 submission.

2 Source: National Program of Cancer Registries SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention (based on the 2024 submission).

* Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 records were reported in a specific area-sex-race category.

Data for United States does not include Puerto Rico.

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