State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Colorado by County

Colon & Rectum (Late Stage^), 2018-2022

All Races (includes Hispanic), Both Sexes, All Ages

Sorted by Percentlate

Explanation of Column Headers
Incidence Rate (95% Confidence Interval) - The incidence rate is based upon 100,000 people and is an annual rate (or average annual rate) based on the time period indicated. Rates are age-adjusted by 5-year age groups to the 2000 U.S. standard million population.

Percent of Cases with Late Stage - This is the number of late stages cases compared to the number of cases for all stages.

Other Notes

• Larger confidence intervals indicate less stability of the data. This is often due to low counts that are not quite low enough to be suppressed.
• Data is currently being suppressed if there are fewer than 16 counts for the time period.

Line by Line Interpretation of the Report

Colorado²

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 19.7 with a 95% confidence interval from 19.2 to 20.2 and 1,246 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 22.0 with a 95% confidence interval from 21.9 to 22.1 and 86,932 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A

Logan County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 16.7 with a 95% confidence interval from 10.6 to 25.4 and 5 average annual cases over 2018-2022.
• CI*Rank ⋔ : 23 (3, 32)
• Percent of Cases with Late Stage :

Douglas County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 15.9 with a 95% confidence interval from 14.1 to 17.9 and 62 average annual cases over 2018-2022.
• CI*Rank ⋔ : 26 (19, 30)
• Percent of Cases with Late Stage :

Montezuma County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 13.4 with a 95% confidence interval from 8.5 to 20.4 and 5 average annual cases over 2018-2022.
• CI*Rank ⋔ : 30 (10, 32)
• Percent of Cases with Late Stage :

Broomfield County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 13.1 with a 95% confidence interval from 9.9 to 17.2 and 11 average annual cases over 2018-2022.
• CI*Rank ⋔ : 31 (19, 32)
• Percent of Cases with Late Stage :

Arapahoe County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 18.7 with a 95% confidence interval from 17.2 to 20.2 and 128 average annual cases over 2018-2022.
• CI*Rank ⋔ : 18 (12, 25)
• Percent of Cases with Late Stage :

Elbert County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 16.2 with a 95% confidence interval from 10.4 to 24.4 and 6 average annual cases over 2018-2022.
• CI*Rank ⋔ : 24 (4, 32)
• Percent of Cases with Late Stage :

La Plata County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 17.0 with a 95% confidence interval from 12.8 to 22.4 and 12 average annual cases over 2018-2022.
• CI*Rank ⋔ : 22 (6, 31)
• Percent of Cases with Late Stage :

Montrose County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 24.3 with a 95% confidence interval from 18.6 to 31.3 and 15 average annual cases over 2018-2022.
• CI*Rank ⋔ : 6 (1, 25)
• Percent of Cases with Late Stage :

Jefferson County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.6 with a 95% confidence interval from 18.1 to 21.2 and 138 average annual cases over 2018-2022.
• CI*Rank ⋔ : 17 (9, 24)
• Percent of Cases with Late Stage :

Summit County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 9.6 with a 95% confidence interval from 5.0 to 16.8 and 3 average annual cases over 2018-2022.
• CI*Rank ⋔ : 32 (17, 32)
• Percent of Cases with Late Stage :

Denver County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.8 with a 95% confidence interval from 18.3 to 21.4 and 135 average annual cases over 2018-2022.
• CI*Rank ⋔ : 14 (8, 23)
• Percent of Cases with Late Stage :

Weld County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.4 with a 95% confidence interval from 19.2 to 23.9 and 69 average annual cases over 2018-2022.
• CI*Rank ⋔ : 12 (5, 21)
• Percent of Cases with Late Stage :

Adams County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.6 with a 95% confidence interval from 19.7 to 23.6 and 104 average annual cases over 2018-2022.
• CI*Rank ⋔ : 11 (5, 20)
• Percent of Cases with Late Stage :

Larimer County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 18.6 with a 95% confidence interval from 16.7 to 20.7 and 74 average annual cases over 2018-2022.
• CI*Rank ⋔ : 19 (10, 26)
• Percent of Cases with Late Stage :

El Paso County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.7 with a 95% confidence interval from 18.3 to 21.3 and 146 average annual cases over 2018-2022.
• CI*Rank ⋔ : 16 (9, 23)
• Percent of Cases with Late Stage :

Delta County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 26.5 with a 95% confidence interval from 20.3 to 34.4 and 14 average annual cases over 2018-2022.
• CI*Rank ⋔ : 4 (1, 22)
• Percent of Cases with Late Stage :

Boulder County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.8 with a 95% confidence interval from 17.7 to 22.0 and 73 average annual cases over 2018-2022.
• CI*Rank ⋔ : 15 (7, 25)
• Percent of Cases with Late Stage :

Chaffee County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 17.1 with a 95% confidence interval from 11.0 to 26.0 and 6 average annual cases over 2018-2022.
• CI*Rank ⋔ : 21 (3, 32)
• Percent of Cases with Late Stage :

Las Animas County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 17.2 with a 95% confidence interval from 10.3 to 28.0 and 4 average annual cases over 2018-2022.
• CI*Rank ⋔ : 20 (2, 32)
• Percent of Cases with Late Stage :

Pueblo County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 25.7 with a 95% confidence interval from 22.6 to 29.1 and 55 average annual cases over 2018-2022.
• CI*Rank ⋔ : 5 (1, 12)
• Percent of Cases with Late Stage :

Garfield County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 23.4 with a 95% confidence interval from 18.4 to 29.4 and 16 average annual cases over 2018-2022.
• CI*Rank ⋔ : 8 (2, 25)
• Percent of Cases with Late Stage :

Teller County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.4 with a 95% confidence interval from 14.5 to 30.8 and 8 average annual cases over 2018-2022.
• CI*Rank ⋔ : 13 (1, 31)
• Percent of Cases with Late Stage :

Eagle County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 14.0 with a 95% confidence interval from 10.2 to 19.0 and 9 average annual cases over 2018-2022.
• CI*Rank ⋔ : 29 (13, 32)
• Percent of Cases with Late Stage :

Park County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 16.1 with a 95% confidence interval from 9.0 to 27.4 and 4 average annual cases over 2018-2022.
• CI*Rank ⋔ : 25 (2, 32)
• Percent of Cases with Late Stage :

Fremont County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 23.5 with a 95% confidence interval from 18.5 to 29.5 and 17 average annual cases over 2018-2022.
• CI*Rank ⋔ : 7 (1, 24)
• Percent of Cases with Late Stage :

Yuma County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 35.6 with a 95% confidence interval from 22.0 to 55.0 and 4 average annual cases over 2018-2022.
• CI*Rank ⋔ : 1 (1, 25)
• Percent of Cases with Late Stage :

Morgan County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 26.8 with a 95% confidence interval from 19.1 to 36.5 and 8 average annual cases over 2018-2022.
• CI*Rank ⋔ : 3 (1, 25)
• Percent of Cases with Late Stage :

Routt County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 14.8 with a 95% confidence interval from 9.2 to 22.9 and 5 average annual cases over 2018-2022.
• CI*Rank ⋔ : 28 (6, 32)
• Percent of Cases with Late Stage :

Prowers County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 32.4 with a 95% confidence interval from 20.3 to 49.5 and 5 average annual cases over 2018-2022.
• CI*Rank ⋔ : 2 (1, 26)
• Percent of Cases with Late Stage :

Mesa County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 22.0 with a 95% confidence interval from 19.0 to 25.3 and 44 average annual cases over 2018-2022.
• CI*Rank ⋔ : 10 (3, 22)
• Percent of Cases with Late Stage :

Archuleta County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 15.2 with a 95% confidence interval from 7.9 to 27.4 and 3 average annual cases over 2018-2022.
• CI*Rank ⋔ : 27 (3, 32)
• Percent of Cases with Late Stage :

Otero County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 22.4 with a 95% confidence interval from 14.6 to 33.2 and 6 average annual cases over 2018-2022.
• CI*Rank ⋔ : 9 (1, 31)
• Percent of Cases with Late Stage :

Alamosa County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Baca County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Bent County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Cheyenne County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Clear Creek County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Conejos County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Costilla County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Crowley County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Custer County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Dolores County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Gilpin County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Grand County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Gunnison County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Hinsdale County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Huerfano County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Jackson County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Kiowa County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Kit Carson County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Lake County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Lincoln County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Mineral County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Moffat County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Ouray County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Phillips County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Pitkin County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Rio Blanco County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Rio Grande County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Saguache County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

San Juan County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

San Miguel County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Sedgwick County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Washington County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Notes:
Created by statecancerprofiles.cancer.gov on 03/22/2026 6:25 pm.

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

† 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.

Rates are computed using cancers classified as malignant based on ICD-O-3. For more information see malignant.html.

^ Late Stage is defined as cases determined to be regional or distant. 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.

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.

Source: SEER and NPCR data. For more specific information please see the table.

* 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.