Updated weekly on Wednesday
On May 17, 2023, Washington State Department of Health implemented a new definition that changes how we track COVID-19 deaths on our dashboards and in published reports. The new definition for COVID-19 deaths affects deaths starting on January 1st, 2023, and results in some adjustments to death counts and rates. The new definition is based on national standards for COVID-19 death classification and will be applied moving forward.
This page shows data over time on the COVID-19 pandemic in King County, Washington since the beginning of the pandemic.
For up-to-date insights from Public Health – Seattle & King County, visit publichealthinsider.com.
This figure shows the daily reported cases, hospitalizations, and deaths in King County since the beginning of the COVID-19 pandemic. Use the button below to switch between showing COVID-19 hospitalizations, reported cases, and deaths. Hover your cursor or tap part of the figure to see more details.
This map shows the rate of COVID-19 in each region of King County in weekly increments since the beginning of the COVID-19 pandemic. Use the button below to switch between showing COVID-19 hospitalizations and reported cases. Use the slider to select a date range. Hover your cursor or tap a region to see more details.
These figures show the average 7-day rate of COVID-19 over the past 28 days as well as the 4-month trend. Use the buttons below to switch between showing COVID-19 hospitalizations, reported cases, and deaths and which age group to display. Hover your cursor or tap a part of the figures to see more details.
For outcomes by race and ethnicity, visit the King County Race and Ethnicity Data Dashboard.
The outcomes by vaccination status visualizations will not be updated after November 8, 2023.
These figures show the rate of COVID-19 during different time periods among King County residents with different vaccination statuses. Time periods, or ‘phases’, are identified by the predominant SARS-CoV-2 variant during each time period. See more information about phases on the About the data page. Rates are age-adjusted. Visualizations begin on 3/1/21 due to the availability of outcomes by vaccination status data.
- Unvaccinated refers to King County residents who have received zero documented doses of any COVID-19 vaccine.
- Vaccinated, not up to date refers to residents who have received one or more doses of any COVID-19 vaccine but have not received all doses recommended in each time period.
- Up to date refers to King County residents who have finished the primary vaccination series and have received recommended booster doses, when eligible, in each time period.
See more information on the About the data page. Hover your cursor or tap a bar to see more details.
About the data: offers information on and insights into how data is collected and how it should be interpreted, along with any limitations and other considerations when using the data for individuals and organizations.
Download the data: offers downloadable Excel files that contain COVID-19 data for King County.
Link/share our site at kingcounty.gov/covid/data/trends