Incidence Rates Table
Incidence Rate Report for Colorado by County
Breast (All Stages^), 2017-2021
All Races (includes Hispanic), Female, All Ages
Sorted by Rate
County
|
2023 Rural-Urban Continuum Codes Φ
|
Age-Adjusted Incidence Rate † cases per 100,000 (95% Confidence Interval) 
|
CI*Rank ⋔ (95% Confidence Interval)
|
Average Annual Count
|
Recent Trend |
Recent 5-Year Trend ‡ in Incidence Rates (95% Confidence Interval)
|
|---|---|---|---|---|---|---|
| Colorado 6 | N/A | 133.3 (131.5, 135.1) | N/A | 4,340 |
rising 
|
0.7 (0.4, 1.6) |
| US (SEER+NPCR) 1 | N/A | 129.8 (129.5, 130.0) | N/A | 258,398 |
rising
|
0.6 (0.4, 0.8) |
| Larimer County 6 | Urban | 157.0 (149.1, 165.3) | 1 (1, 9) | 322 |
rising
|
2.9 (1.1, 7.3) |
| Prowers County 6 | Rural | 156.3 (115.5, 207.0) | 2 (1, 45) | 11 |
stable 
|
1.0 (-4.2, 6.6) |
| Huerfano County 6 | Rural | 153.5 (97.2, 231.8) | 3 (1, 51) | 7 |
stable
|
35.5 (-2.3, 67.4) |
| Douglas County 6 | Urban | 151.7 (144.0, 159.7) | 4 (1, 12) | 306 |
rising
|
0.9 (0.1, 1.9) |
| Boulder County 6 | Urban | 146.5 (138.6, 154.7) | 5 (2, 15) | 276 |
rising
|
3.2 (0.1, 6.4) |
| Chaffee County 6 | Rural | 141.8 (112.8, 177.2) | 6 (1, 40) | 21 |
stable
|
1.7 (-1.0, 4.8) |
| La Plata County 6 | Rural | 141.5 (124.1, 160.9) | 7 (1, 32) | 53 |
stable
|
0.7 (-0.8, 2.4) |
| Jefferson County 6 | Urban | 140.2 (134.7, 146.0) | 8 (4, 19) | 518 |
stable
|
1.9 (0.0, 5.4) |
| Broomfield County 6 | Urban | 137.0 (121.5, 154.1) | 9 (2, 33) | 58 |
rising
|
1.7 (0.2, 3.6) |
| Lincoln County 6 | Rural | 134.4 (77.8, 217.1) | 10 (1, 53) | 4 |
|
|
| Arapahoe County 6 | Urban | 133.8 (128.5, 139.3) | 11 (7, 25) | 493 |
rising
|
1.0 (0.4, 2.3) |
| Rio Blanco County 6 | Rural | 132.2 (80.7, 204.4) | 12 (1, 53) | 5 |
|
|
| Denver County 6 | Urban | 131.9 (126.5, 137.5) | 13 (8, 28) | 462 |
stable
|
0.3 (-0.1, 0.8) |
| Summit County 6 | Rural | 131.8 (106.7, 161.5) | 14 (1, 45) | 21 |
stable
|
1.1 (-2.6, 5.4) |
| El Paso County 6 | Urban | 131.1 (125.9, 136.4) | 15 (8, 28) | 506 |
stable
|
0.5 (-0.2, 1.3) |
| Weld County 6 | Urban | 129.5 (121.7, 137.8) | 16 (8, 31) | 211 |
stable
|
0.6 (-0.2, 1.5) |
| Teller County 6 | Urban | 128.6 (103.8, 158.4) | 17 (1, 47) | 23 |
stable
|
-0.7 (-3.3, 2.1) |
| Routt County 6 | Rural | 128.3 (102.6, 159.0) | 18 (1, 46) | 19 |
stable
|
1.4 (-0.5, 3.7) |
| Adams County 6 | Urban | 127.5 (121.2, 134.0) | 19 (10, 32) | 322 |
rising
|
0.9 (0.1, 1.9) |
| Fremont County 6 | Rural | 126.9 (108.1, 148.4) | 20 (3, 43) | 42 |
stable
|
0.7 (-0.7, 2.3) |
| Mesa County 6 | Urban | 126.0 (116.1, 136.7) | 21 (8, 36) | 134 |
stable
|
-0.1 (-1.1, 0.8) |
| Crowley County 6 | Rural | 125.0 (65.9, 223.5) | 22 (1, 53) | 3 |
stable
|
-0.8 (-7.5, 5.7) |
| Montrose County 6 | Rural | 124.9 (106.7, 145.6) | 23 (3, 43) | 41 |
stable
|
-0.1 (-2.0, 2.0) |
| Kit Carson County 6 | Rural | 122.5 (77.8, 184.4) | 24 (1, 53) | 5 |
stable
|
-0.4 (-4.8, 3.8) |
| Gilpin County 6 | Urban | 122.1 (77.0, 190.3) | 25 (1, 53) | 6 |
stable
|
-0.3 (-6.3, 6.6) |
| Delta County 6 | Rural | 121.4 (100.2, 146.2) | 26 (3, 47) | 30 |
stable
|
0.9 (-0.6, 2.5) |
| Elbert County 6 | Urban | 120.0 (96.6, 147.9) | 27 (3, 48) | 21 |
stable
|
-0.3 (-2.6, 2.3) |
| Pueblo County 6 | Urban | 119.4 (110.1, 129.4) | 28 (13, 39) | 134 |
stable
|
0.0 (-0.7, 0.6) |
| Las Animas County 6 | Rural | 116.1 (84.1, 156.8) | 29 (1, 52) | 11 |
rising
|
5.1 (2.6, 8.0) |
| Otero County 6 | Rural | 115.2 (88.9, 147.2) | 30 (2, 51) | 15 |
stable
|
-0.1 (-3.7, 3.7) |
| Pitkin County 6 | Rural | 114.1 (86.2, 149.1) | 31 (2, 52) | 13 |
stable
|
-2.1 (-5.7, 1.9) |
| Grand County 6 | Rural | 111.8 (80.8, 151.5) | 32 (1, 52) | 10 |
stable
|
2.5 (-5.1, 15.2) |
| Alamosa County 6 | Rural | 110.7 (80.7, 148.2) | 33 (2, 52) | 10 |
stable
|
1.7 (-0.6, 4.2) |
| Archuleta County 6 | Rural | 110.0 (80.6, 148.3) | 34 (2, 52) | 13 |
stable
|
-1.1 (-4.0, 1.9) |
| Eagle County 6 | Rural | 109.4 (92.3, 129.0) | 35 (10, 49) | 32 |
stable
|
-0.1 (-2.2, 2.3) |
| Moffat County 6 | Rural | 107.3 (74.1, 150.2) | 36 (1, 53) | 7 |
stable
|
-3.5 (-8.0, 0.6) |
| Washington County 6 | Rural | 105.1 (55.4, 182.3) | 37 (1, 53) | 3 |
stable
|
-1.4 (-8.9, 5.6) |
| Park County 6 | Urban | 102.9 (77.0, 136.4) | 38 (6, 53) | 14 |
stable
|
0.0 (-3.2, 3.7) |
| San Miguel County 6 | Rural | 101.8 (61.1, 160.9) | 39 (1, 53) | 5 |
|
|
| Phillips County 6 | Rural | 101.5 (55.9, 172.9) | 40 (1, 53) | 3 |
|
|
| Montezuma County 6 | Rural | 101.1 (80.8, 125.5) | 41 (11, 52) | 20 |
stable
|
-0.3 (-2.9, 2.5) |
| Custer County 6 | Rural | 99.7 (56.0, 173.9) | 42 (1, 53) | 4 |
|
|
| Garfield County 6 | Rural | 99.6 (84.3, 116.8) | 43 (23, 51) | 33 |
stable
|
-1.5 (-3.3, 0.4) |
| Gunnison County 6 | Rural | 99.4 (68.9, 138.9) | 44 (4, 53) | 7 |
stable
|
1.2 (-1.5, 4.2) |
| Clear Creek County 6 | Urban | 97.5 (65.0, 143.7) | 45 (3, 53) | 7 |
stable
|
0.0 (-3.6, 3.9) |
| Rio Grande County 6 | Rural | 97.0 (64.3, 140.6) | 46 (3, 53) | 7 |
stable
|
0.1 (-4.3, 4.4) |
| Yuma County 6 | Rural | 95.8 (63.8, 139.3) | 47 (3, 53) | 6 |
stable
|
0.9 (-5.1, 7.3) |
| Morgan County 6 | Rural | 94.4 (73.6, 119.3) | 48 (19, 53) | 15 |
stable
|
-0.3 (-2.7, 2.1) |
| Logan County 6 | Rural | 93.9 (69.7, 124.2) | 49 (11, 53) | 12 |
stable
|
-2.8 (-7.2, 1.0) |
| Conejos County 6 | Rural | 85.2 (48.5, 139.0) | 50 (3, 53) | 4 |
stable
|
2.3 (-2.5, 7.7) |
| Ouray County 6 | Rural | 84.1 (43.8, 154.1) | 51 (2, 53) | 3 |
stable
|
-1.9 (-7.1, 3.1) |
| Lake County 6 | Rural | 81.5 (45.7, 135.6) | 52 (3, 53) | 3 |
|
|
| Saguache County 6 | Rural | 67.5 (39.2, 113.8) | 53 (22, 53) | 4 |
|
|
| Baca County 6 | Rural |
|
|
|
|
|
| Bent County 6 | Rural |
|
|
|
|
|
| Cheyenne County 6 | Rural |
|
|
|
|
|
| Costilla County 6 | Rural |
|
|
|
|
|
| Dolores County 6 | Rural |
|
|
|
|
|
| Hinsdale County 6 | Rural |
|
|
|
|
|
| Jackson County 6 | Rural |
|
|
|
|
|
| Kiowa County 6 | Rural |
|
|
|
|
|
| Mineral County 6 | Rural |
|
|
|
|
|
| San Juan County 6 | Rural |
|
|
|
|
|
| Sedgwick County 6 | Rural |
|
|
|
|
|
Notes:
Created by statecancerprofiles.cancer.gov on 07/16/2025 5:35 pm.
State Cancer Registries may provide more current or more local data.
Data cannot be shown for the following areas. For more information on what areas are suppressed or not available, please refer to the table.
Baca, Bent, Cheyenne, Costilla, Dolores, Hinsdale, Jackson, Kiowa, Mineral, San Juan, Sedgwick
† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). 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.
Rates and trends are computed using different standards for malignancy. For more information see malignant.html.
^ All Stages refers to any stage in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
Φ Rural-Urban Continuum Codes provided by the USDA.
* 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. If an average count of 3 is shown, the total number of cases for the time period is 16 or more which exceeds suppression threshold (but is rounded to 3).
Source: SEER and NPCR data. For more specific information please see the table.
Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.
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.
Created by statecancerprofiles.cancer.gov on 07/16/2025 5:35 pm.
State Cancer Registries may provide more current or more local data.
Data cannot be shown for the following areas. For more information on what areas are suppressed or not available, please refer to the table.
Baca, Bent, Cheyenne, Costilla, Dolores, Hinsdale, Jackson, Kiowa, Mineral, San Juan, Sedgwick
† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). 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.
Rates and trends are computed using different standards for malignancy. For more information see malignant.html.
^ All Stages refers to any stage in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
Φ Rural-Urban Continuum Codes provided by the USDA.
* 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. If an average count of 3 is shown, the total number of cases for the time period is 16 or more which exceeds suppression threshold (but is rounded to 3).
Source: SEER and NPCR data. For more specific information please see the table.
Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.
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.