State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Washington by County

Colon & Rectum (Late Stage^), 2017-2021

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

Sorted by Rate

Explanation of Column Headers

Objective - The objective of *** is from the Healthy People 2020 project done by the Centers for Disease Control and Prevention.

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

Washington⁵

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 21.0 with a 95% confidence interval from 20.5 to 21.4 and 1,814 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Percent of Cases with Late Stage : 61.2

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 21.8 with a 95% confidence interval from 21.8 to 21.9 and 83,825 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Percent of Cases with Late Stage : 59.8

Adams County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 29.0 with a 95% confidence interval from 18.5 to 43.0 and 5 average annual cases over 2017-2021.
• CI*Rank ⋔ : 1 (1, 33)
• Percent of Cases with Late Stage : 71.4

Franklin County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 27.3 with a 95% confidence interval from 22.1 to 33.3 and 20 average annual cases over 2017-2021.
• CI*Rank ⋔ : 2 (1, 25)
• Percent of Cases with Late Stage : 70.8

Island County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 26.6 with a 95% confidence interval from 22.3 to 31.6 and 32 average annual cases over 2017-2021.
• CI*Rank ⋔ : 3 (1, 22)
• Percent of Cases with Late Stage : 64.2

Skamania County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 26.3 with a 95% confidence interval from 16.3 to 41.1 and 5 average annual cases over 2017-2021.
• CI*Rank ⋔ : 4 (1, 34)
• Percent of Cases with Late Stage : 70.6

Grays Harbor County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 26.1 with a 95% confidence interval from 21.8 to 31.1 and 28 average annual cases over 2017-2021.
• CI*Rank ⋔ : 5 (1, 24)
• Percent of Cases with Late Stage : 59.2

Jefferson County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 25.4 with a 95% confidence interval from 19.1 to 33.8 and 16 average annual cases over 2017-2021.
• CI*Rank ⋔ : 6 (1, 31)
• Percent of Cases with Late Stage : 70.1

San Juan County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 24.8 with a 95% confidence interval from 16.9 to 36.3 and 8 average annual cases over 2017-2021.
• CI*Rank ⋔ : 7 (1, 33)
• Percent of Cases with Late Stage : 66.7

Skagit County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 24.7 with a 95% confidence interval from 21.4 to 28.5 and 44 average annual cases over 2017-2021.
• CI*Rank ⋔ : 8 (1, 24)
• Percent of Cases with Late Stage : 63.8

Stevens County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 24.4 with a 95% confidence interval from 18.9 to 31.0 and 16 average annual cases over 2017-2021.
• CI*Rank ⋔ : 9 (1, 31)
• Percent of Cases with Late Stage : 64.1

Benton County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 23.7 with a 95% confidence interval from 20.8 to 26.8 and 53 average annual cases over 2017-2021.
• CI*Rank ⋔ : 10 (2, 26)
• Percent of Cases with Late Stage : 70.6

Mason County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 23.4 with a 95% confidence interval from 19.0 to 28.7 and 23 average annual cases over 2017-2021.
• CI*Rank ⋔ : 11 (1, 30)
• Percent of Cases with Late Stage : 62.3

Clallam County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 23.1 with a 95% confidence interval from 19.0 to 28.0 and 30 average annual cases over 2017-2021.
• CI*Rank ⋔ : 12 (1, 30)
• Percent of Cases with Late Stage : 60.3

Pierce County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 22.5 with a 95% confidence interval from 21.1 to 23.9 and 216 average annual cases over 2017-2021.
• CI*Rank ⋔ : 13 (7, 23)
• Percent of Cases with Late Stage : 60.3

Snohomish County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 22.5 with a 95% confidence interval from 21.1 to 23.9 and 202 average annual cases over 2017-2021.
• CI*Rank ⋔ : 14 (7, 24)
• Percent of Cases with Late Stage : 60.9

Lewis County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 22.4 with a 95% confidence interval from 18.5 to 26.9 and 26 average annual cases over 2017-2021.
• CI*Rank ⋔ : 15 (2, 31)
• Percent of Cases with Late Stage : 62.8

Kitsap County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.4 with a 95% confidence interval from 19.1 to 23.8 and 70 average annual cases over 2017-2021.
• CI*Rank ⋔ : 16 (7, 29)
• Percent of Cases with Late Stage : 59.3

Grant County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 21.4 with a 95% confidence interval from 17.4 to 25.9 and 21 average annual cases over 2017-2021.
• CI*Rank ⋔ : 17 (3, 33)
• Percent of Cases with Late Stage : 65.8

Thurston County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.1 with a 95% confidence interval from 19.0 to 23.5 and 74 average annual cases over 2017-2021.
• CI*Rank ⋔ : 18 (7, 29)
• Percent of Cases with Late Stage : 57.2

Spokane County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.0 with a 95% confidence interval from 19.4 to 22.7 and 130 average annual cases over 2017-2021.
• CI*Rank ⋔ : 19 (9, 28)
• Percent of Cases with Late Stage : 65.4

King County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 21.0 with a 95% confidence interval from 20.2 to 21.9 and 499 average annual cases over 2017-2021.
• CI*Rank ⋔ : 20 (13, 27)
• Percent of Cases with Late Stage : 63.8

Chelan County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 20.9 with a 95% confidence interval from 16.9 to 25.5 and 21 average annual cases over 2017-2021.
• CI*Rank ⋔ : 21 (3, 33)
• Percent of Cases with Late Stage : 57.0

Okanogan County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 20.8 with a 95% confidence interval from 15.7 to 27.1 and 13 average annual cases over 2017-2021.
• CI*Rank ⋔ : 22 (2, 34)
• Percent of Cases with Late Stage : 51.2

Pend Oreille County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 20.4 with a 95% confidence interval from 12.7 to 32.2 and 5 average annual cases over 2017-2021.
• CI*Rank ⋔ : 23 (1, 34)
• Percent of Cases with Late Stage : 71.4

Klickitat County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 20.2 with a 95% confidence interval from 13.8 to 29.0 and 7 average annual cases over 2017-2021.
• CI*Rank ⋔ : 24 (1, 34)
• Percent of Cases with Late Stage : 66.7

Pacific County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 20.1 with a 95% confidence interval from 13.7 to 29.2 and 8 average annual cases over 2017-2021.
• CI*Rank ⋔ : 25 (1, 34)
• Percent of Cases with Late Stage : 64.6

Douglas County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.8 with a 95% confidence interval from 14.5 to 26.3 and 10 average annual cases over 2017-2021.
• CI*Rank ⋔ : 26 (3, 34)
• Percent of Cases with Late Stage : 56.7

Yakima County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.4 with a 95% confidence interval from 17.1 to 22.0 and 50 average annual cases over 2017-2021.
• CI*Rank ⋔ : 27 (11, 32)
• Percent of Cases with Late Stage : 59.2

Whatcom County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 19.0 with a 95% confidence interval from 16.6 to 21.6 and 50 average annual cases over 2017-2021.
• CI*Rank ⋔ : 28 (13, 33)
• Percent of Cases with Late Stage : 59.3

Walla Walla County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 18.7 with a 95% confidence interval from 14.4 to 24.0 and 14 average annual cases over 2017-2021.
• CI*Rank ⋔ : 29 (6, 34)
• Percent of Cases with Late Stage : 57.3

Lincoln County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 18.6 with a 95% confidence interval from 10.5 to 32.0 and 3 average annual cases over 2017-2021.
• CI*Rank ⋔ : 30 (1, 34)
• Percent of Cases with Late Stage : 70.8

Clark County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 17.2 with a 95% confidence interval from 15.7 to 18.8 and 96 average annual cases over 2017-2021.
• CI*Rank ⋔ : 31 (23, 34)
• Percent of Cases with Late Stage : 60.3

Kittitas County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 16.7 with a 95% confidence interval from 11.8 to 23.1 and 8 average annual cases over 2017-2021.
• CI*Rank ⋔ : 32 (7, 34)
• Percent of Cases with Late Stage : 62.1

Cowlitz County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 15.2 with a 95% confidence interval from 12.4 to 18.6 and 21 average annual cases over 2017-2021.
• CI*Rank ⋔ : 33 (24, 34)
• Percent of Cases with Late Stage : 49.8

Asotin County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 13.2 with a 95% confidence interval from 7.8 to 21.1 and 4 average annual cases over 2017-2021.
• CI*Rank ⋔ : 34 (13, 34)
• Percent of Cases with Late Stage : 55.0

Columbia County⁶

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

Ferry County⁶

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

Garfield County⁶

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

Wahkiakum County⁶

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

Whitman County⁶

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

Notes:
Created by statecancerprofiles.cancer.gov on 06/30/2025 6:20 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.
Columbia, Ferry, Garfield, Wahkiakum, Whitman

† 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 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 (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 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.