State & Local Coronavirus Summary


As of Thursday October 21st:   

  • Yellowstone County has 53 new cases, 2,377 active cases, and 27,340 total cases of COVID-19 – find data for other counties here
  • Yellowstone County currently accounts for 16% of the total cases in Montana.
  • Persons ages 20-39 are contracting COVID-19 most frequently, comprising 34% of cases in Montana. Confirmed cases and deaths can be found in the figures below.
    case age 10-21case age table 10-21



  1. Montana Case Status
  2. Montana Trendline
  3. COVID-19 in Schools
  4. Congregate Setting Data

The CDC reports an average of 523.9 cases per 100,000 residents for the state of Montana in the last seven days, and the level of community transmission has been deemed high. The statewide status of cases is summarized in the table below. Montana ranks 1st within a state by state comparison of the number of cases per 100,000 individuals. 

current case status 10-21