Local Case Counts

We update confirmed and probable case numbers for the county and by city daily. Depending on the time of day you check the tables, numbers may vary from those reported on the interactive dashboard. New reports of positive tests come in and disease investigations are done throughout the day, so the numbers vary based on the time of day the data is run. Please check the "Data as of" and "Last Updated" note to confirm the most current number. 

Case Count (cumulative since Jan. 2020) Last Updated: 1:20 p.m. 10/26/20 Change from 10/23/20
Confirmed 8,634 +186
Probable 1,246 +46

Note: “Probable” cases include close contacts of a confirmed case who become symptomatic, positive antigen test, or positive serology/antibody test AND a credible history of COVID-like illness. For full definition of a "Probable" case, please see the Department of Health guidance

COVID-19 Cases Reported in Snohomish County by Date (Updated Weekdays)

case count by date

Snohomish County COVID-19 Case Rate per 100,000 for 2-week Rolling Period (updated Mondays)

Cases per two week period

COVID rate and heat maps (click an image to view larger)

Published October 5. These maps are updated every two weeks. To see previous versions, see last section of our Snapshots and Reports page.

Case rates per 100,000 by ZIP (Sept. 27-Oct. 10)


Case count heat map (Sept. 27-Oct. 10)

case distribution heat map thumbnail 2-week

Cases heat map (January 2020 - Oct. 10)


Case Count by City, cumulative since Jan. 2020 (updated weekdays)

City Last Updated: 10/26/20
Arlington 428  (334 recovered)
Bothell* 728  (569 recovered)
Brier 40  (36 recovered)
Darrington 12  (10 recovered)
Edmonds 696  (578 recovered)
Everett` 2,873  (2,202 recovered)
Gold Bar 31  (21 recovered)
Granite Falls 67  (55 recovered)
Index 0
Lake Stevens 470  (371 recovered)
Lynnwood 1,462  (1,209 recovered)
Marysville 896  (696 recovered)
Mill Creek 174  (121 recovered)
Monroe 495  (356 recovered)
Mountlake Terrace 238  (206 recovered)
Mukilteo 175  (135 recovered)
Snohomish 634  (510 recovered)
Stanwood 247   (192 recovered)
Sultan 65  (39 recovered)
Tulalip 90   (52 recovered)
Woodinville* 35  (27 recovered)
Woodway 18  (16 recovered)
Unknown/Other 6  (5 recovered)

City counts include both confirmed and probable cases. Numbers less than 5 are suppressed to protect medical privacy. Not all cases are within city limits and totals may include nearby unincorporated Snohomish County. Unknown includes cases still under investigation.

*Counts are for portions in Snohomish County only