Local Case Counts

We update confirmed and probable case numbers for the county and by city weekly. Depending on when you check the tables, numbers may vary from those reported by the state Department of Health. Because new reports of positive tests come in and disease investigations are done throughout the week, the numbers vary based on when the data is run. Please check the "Data as of" or "Last Updated" note to confirm the most current number. 

Case Count (cumulative since Jan. 2020) Last Updated: 2:05 p.m. 1/10/22 Change from 1/4/22
Confirmed  88,594 +10,701
Probable 8,206 +844

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

*Based on what is reported to the Health District daily, and a weekly reconciliation with state Department of Health data. 

To better align with the Washington State Department of Health’s data dashboard, the Snohomish Health District has incorporated positive antigen results into case reporting.

Effective April 19, the weekly case count update now includes a bar chart with total positive cases for the week broken into molecular and antigen cases. The rolling 2-week case rate has also been updated to incorporate antigen cases going back in time. This recalibration has resulted in a slight increase in rolling 2-week case rates.

Antigen test results are still positive cases, but conducted through rapid tests rather than molecular testing doing at laboratories. 

For more detailed county-level data, including deaths, please see the DOH Data Dashboard.

Hospital Data

  Last updated 1/14/22 Change from 1/13/22
COVID Positive
196 +14
COVID Ventilated 15 -3
Deaths 4 +4

Hospitalization data is updated daily on weekdays. Numbers represent COVID-positive patients currently hospitalized in Snohomish County.

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

case count by date

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

case counts_dec 28

Snohomish County Longterm Care Facility Associated COVID-19 Cases by Onset Date (updated weekly)

Snohomish County Longterm Care Facility Associated COVID-19 Cases by Onset Date


hospital admissions


covid testing by week 4-5

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

These maps are updated every month. To see previous versions, see last section on our Reports page.

Case count heat map (December 26, 2021 - January 8, 2022)

Heat Map 1.13

Case Rates per 100,000 by ZIP (December 26, 2021 - January 8, 2022) 

ZIP Code Case Rates 1.13

COVID-19 Vaccinations by ZIP (As of January 8)

ZIP Code Init Vacc 01.14

Case Count by City, cumulative since Jan. 2020 (last updated 1/10/22)

City               Total     Change From 1/4/22     
Arlington 6,890 +729
Bothell* 7,148 +1,106
Brier 494 +66
Darrington 228 +26
Edmonds 4,907 +586
Everett 21,433 +2,436
Gold Bar 533 +51
Granite Falls 1,406 +165
Index 21 +0
Lake Stevens 6,843 +804
Lynnwood 11,422 +1,319
Marysville 11,329 +1,424
Mill Creek 1,819 +222
Monroe 4,419 +474
Mountlake Terrace 2,257 +333
Mukilteo 1,836 +255
Snohomish 7,348 +737
Stanwood 3,399 +370
Sultan 991 +129
Tulalip 1,413 +201
Woodinville* 296 +47
Woodway 109 +19

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