After adding over 5,310,000 new cases throughout the last week, the U.S. now has more than 67.4 million confirmed cases of COVID-19. There have been more than 840,000 COVID-19-related deaths — the highest death toll of any country.
New cases continue to rise at a faster rate. In the past week, there were an average of 221.3 daily new coronavirus cases per 100,000 Americans — an increase from the week prior, when there were an average of 213.6 daily new coronavirus cases per 100,000 people.
While COVID-19 has spread to nearly every part of the country, cities continue to be the sites of major outbreaks. Experts agree that the virus is more likely to spread in group settings where large numbers of people routinely have close contact with one another, such as colleges, nursing homes, bars, and restaurants. Metropolitan areas with a high degree of connectivity between different neighborhoods and a large population may be particularly at-risk.
In the 50 largest metro areas, the incidence of coronavirus grew at an average rate of 242.0 new cases a day per 100,000 residents in the past week — 13.5% greater than the case growth in all counties outside of metro areas.
The Pittsburgh, PA, metro area consists of Allegheny County, Westmoreland County, Washington County, and four other counties. In the past week, there were an average of 216.0 new coronavirus cases every day per 100,000 Pittsburgh residents, less than the national figure. The metro area’s average daily case growth in the most recent week is essentially unchanged from the week prior, when there were an average of 213.3 daily new cases per 100,000 Pittsburgh residents.
The spread of coronavirus depends on a variety of factors and can vary even between neighboring counties. Within the Pittsburgh metro area, COVID-19 is growing the slowest in Fayette County. There were an average of 133.5 new cases per day per 100,000 residents in Fayette County during the past week, the least of the seven counties in Pittsburgh with available data.
Case growth in the Pittsburgh metro area varies at the county level. In Allegheny County, for example, there were an average of 249.6 new cases per day per 100,000 residents in the past week — the most of any county in Pittsburgh and more than the case growth rate in Fayette County.
While Fayette County has the slowest case growth in the Pittsburgh area, it does not have the lowest incidence of cases overall. As of January 20, there were a total of 20,003.5 confirmed cases per 100,000 residents in Fayette County, the third fewest of the seven counties in the metro area. For comparison, the U.S. has so far reported 20,769.3 cases per 100,000 Americans nationwide.
In order to slow the spread of COVID-19, city and county governments have ordered the closure of thousands of consumer-facing businesses. These measures have led to widespread job loss and record unemployment. In Fayette County, unemployment peaked at 20.0% in April 2020. As of June 2021, the county’s unemployment rate was 8.3%.
To determine the county in every metropolitan area where COVID-19 is growing the slowest, 24/7 Wall St. compiled and reviewed data from state and local health departments. We ranked counties according to the average number of new daily COVID-19 cases per 100,000 residents in the seven days ending January 20. To estimate the incidence of COVID-19 at the metropolitan level, we aggregated data from the county level using boundary definitions from the U.S. Census Bureau. Population data used to adjust case and death totals came from the U.S. Census Bureau’s 2019 American Community Survey and are five-year estimates. Unemployment data is from the Bureau of Labor Statistics and is not seasonally adjusted.
| Rank in MSA | County | Population | New daily cases per 100,000, week ending January 20 | New daily cases per 100,000, week ending January 13 | Cumulative cases per 100,000 | Cumulative deaths per 100,000 |
|---|---|---|---|---|---|---|
| 1 | Fayette County | 131,302 | 133.5 | 121.5 | 20,003.5 | 428.8 |
| 2 | Armstrong County | 65,867 | 148.3 | 139.1 | 20,785.8 | 440.3 |
| 3 | Westmoreland County | 352,590 | 163.7 | 148.7 | 19,769.7 | 334.7 |
| 4 | Beaver County | 165,833 | 168.8 | 145.4 | 20,943.4 | 387.7 |
| 5 | Butler County | 186,899 | 191.9 | 189.2 | 21,105.5 | 344.0 |
| 6 | Washington County | 207,212 | 239.9 | 227.1 | 21,368.5 | 264.9 |
| 7 | Allegheny County | 1,221,744 | 249.6 | 256.4 | 18,973.7 | 232.7 |
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