After adding over 24,000 new cases on May 27, there are now more than 32.8 million confirmed cases of COVID-19 in the U.S. There have been more than 580,000 COVID-19-related deaths – the highest death toll of any country.

The number of new cases is increasing steadily. For the past week, there have been an average of 8.3 new coronavirus cases per 100,000 Americans daily – essentially unchanged from the previous week when there was an average of 11.3 daily new coronavirus cases per 100,000 people.

While COVID-19 has spread to almost all parts of the country, cities continue to be the scene of major outbreaks. Experts agree that the virus is more likely to spread in group settings where large numbers of people are in regular close contact with one another, such as in colleges, nursing homes, bars and restaurants. Metropolitan areas with a high degree of connectivity between different parts of the city and large populations can be particularly at risk.

The Denver-Aurora-Lakewood, CO area consists of Denver County, Arapahoe County, Jefferson County, and seven other counties. For the past week, there have been an average of 15.3 new coronavirus cases per 100,000 Denver residents every day, more than the national number. The average daily growth in cases in the metropolitan area for the past week is a decrease from the previous week when there were an average of 21.5 daily new cases per 100,000 Denver residents.

The spread of the coronavirus depends on a variety of factors and can even vary between neighboring counties. In the Denver-Aurora-Lakewood area, COVID-19 is the slowest growing area in Broomfield County. For the past week, Broomfield County’s average of 8.3 new cases per 100,000 population a day, the fewest of the 10 Denver counties with data available.

Case growth in the greater Denver area varies widely at the county level. For example, Gilpin County had an average of 25.4 new cases per day per 100,000 population for the past week – most of any Denver counties and far more than the case growth rate in Broomfield County.

While Broomfield County has the slowest case growth in the Denver area, it doesn’t have the lowest overall incidence of cases. As of May, Broomfield County, the fifth-least of the 10 counties in the metropolitan area, had a total of 7,160.5 confirmed cases per 100,000 residents. For comparison, the US has so far reported 10,115.4 cases per 100,000 Americans nationwide.