King County Data Dashboard

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Updated October 1 - King County Public Health maintains several data dashboards that provide regular updates about COVID-19 cases and deaths, key trends and indicators of COVID-19 activity, long-term care information, and more.

Daily Summary Dashboard

Total cases, deaths, and demographics for the County. Zoom in on each city to get the latest local data. Updated daily between 3:00 pm to 5:00 pm. To access Mercer Island specific data, click on the City-level tab in the menu at the top of the charts. Once the City tab is open, select Mercer Island from the drop-down menu on the left-hand side of the page (see image to the right).

Key Indicators of COVID-19 Activity Dashboard

Key indicators and trends that track COVID-19 activity like outbreak growth, rate of hospitalization, and testing capacity. These indicators, along with other data, are key considerations for reviewing current restrictions on activity, recommendations, and precautions to prevent the spread of COVID-19. Updated weekly on Tuesdays.

Long-Term Care Facility Dashboard

The data provided in the dashboard describes the impacts of COVID-19 on the residents and staff of long-term care facilities licensed by the State, including nursing homes, adult family homes, and assisted living facilities. Updated weekly on Thursdays.

Economic, Social, and Overall Health Impacts Dashboard

Shows changes in key economic, social, and other health indicators resulting from strategies to slow the spread of COVID-19. Updated weekly.

Syndromic Surveillance Dashboard

Emergency department visits and hospitalizations for COVID-like illness and pneumonia at King County healthcare facilities. Updated weekly on Wednesdays.

Race/Ethnicity Dashboard

Shows the impacts of COVID-19 on communities of color compared to whites in King County, WA. Updated weekly on Mondays.

Have you ever wondered why the data changes? You've noticed the numbers are lower than the previous day? King County Public Health has answered seven of the most asked questions about their data dashboards. Check it out and see if they've answered your questions!

Washington State COVID-19 Data Dashboard

Looking for the latest information on state-wide case counts, epidemiologic curves, testing, hospitalizations or other information? The state has created a data dashboard complete with this information and more. Data is updated daily. Click here to visit the data dashboard.

On March 25, Public Health—Seattle & King County launched a data dashboard that provides daily updates to COVID-19 cases and deaths. Visit to see the dashboard.

The dashboard provides data on how many people have tested positive in each city, age ranges of those who test positive or who have died, and more.

King County will update the dashboard daily (between 1:00 and 2:00 p.m.), pending the receipt of data from key sources, including the Washington State Department of Health. The dashboard includes a timestamp of the most recent updates.

Due to delays in reporting data from various laboratories, case totals are commonly reported two or three days later. While a graph showing the trend of COVID-19 cases may appear to be flat or declining, King County notes that we must assume that this does not actually represent a decline.

Hover over key data points to reveal important information. A mobile version is also available.

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