Why is there a higher concentration of cases in some areas than others?

The dashboard shows a higher concentration of cases in some Lake County communities. The Lake County Health Department cautions that:     

  • COVID-19 is spreading in every Lake County community.    
  • Because testing is not widely available, the data is not necessarily reflective of the actual distribution of cases.     
  • People who live in those communities are not necessarily at a greater risk of contracting COVID-19 than the general population.

There are a number of reasons that one community may have a higher number of positive cases:  

  • More people who live in those communities may have been tested than people who live in other areas of Lake County.      
  • People who live in those communities may have traveled to areas where spread of COVID-19 was occurring, or attended large gatherings where exposure occurred before the Illinois ‘stay at home’ order was issued by the Governor.

Show All Answers

1. How do I use the interactive map?
2. What does the dark blue color on the map mean?
3. Why is there a higher concentration of cases in some areas than others?
4. Why does the map only use ranges of cases (e.g., 5-9 cases) and not exact numbers?
5. Are there cases of COVID-19 in my community?