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Interpretation of Incidence Rates Data

Incidence Rate Report for Washington by County

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

All Races (includes Hispanic), Female, All Ages

Sorted by Name

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.

Recent Trends - This is an interpretation of the AAPC/APC:

AAPC/APC (95% Confidence Interval) - the change in rate over time


Other Notes


Line by Line Interpretation of the Report


Washington1


US (SEER+NPCR)1


Adams County2


Asotin County2


Benton County2


Chelan County2


Clallam County7


Clark County2


Columbia County2


Cowlitz County2


Douglas County2


Ferry County2


Franklin County2


Garfield County2


Grant County2


Grays Harbor County7


Island County7


Jefferson County7


King County7


Kitsap County7


Kittitas County2


Klickitat County2


Lewis County2


Lincoln County2


Mason County7


Okanogan County2


Pacific County2


Pend Oreille County2


Pierce County7


San Juan County7


Skagit County7


Skamania County2


Snohomish County7


Spokane County2


Stevens County2


Thurston County7


Wahkiakum County2


Walla Walla County2


Whatcom County7


Whitman County2


Yakima County2





Notes:
Created by statecancerprofiles.cancer.gov on 03/19/2026 5:29 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 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.

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.