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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), Both Sexes, Ages 50+

Sorted by Recentaapc

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


Klickitat County2


Whitman County2


Walla Walla County2


Asotin County2


Pend Oreille County2


Ferry County2


Garfield County2


Stevens County2


Spokane County2


Adams County2


Columbia County2


Lincoln County2


Wahkiakum County2


Clark County2


Skamania County2


Benton County2


Cowlitz County2


Franklin County2


Lewis County2


Grant County2


Skagit County7


Whatcom County7


Yakima County2


Pacific County2


Jefferson County7


Snohomish County7


Grays Harbor County7


King County7


Kittitas County2


Mason County7


Douglas County2


Chelan County2


Okanogan County2


Thurston County7


Clallam County7


Kitsap County7


Pierce County7


San Juan County7


Island County7





Notes:
Created by statecancerprofiles.cancer.gov on 03/20/2026 3:11 am.

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 for United States does not include Puerto Rico.