Total COVID-19 cases in Tarrant County neared 40,000 as of Aug. 21.

Among the cities of Grapevine, Colleyville and Southlake, Grapevine had the highest number of total confirmed cases, with nearly double the total counts of Colleyville and Southlake. That brings the total number of cases in Grapevine, which also has the largest population among the three cities, to 622.

The city among the three with thesecond-highest number of total cases was Southlake, which has reported a total of 315 cases. Colleyville has reported a total of 241 cases, Aug. 21 data shows.

In Tarrant County, there have been a total of 39,328 cases of the coronavirus. That is a 15% increase in the total number of confirmed cases since Aug. 10.

Data shows those in the 25-44 age group in Tarrant County continue to have had the highest number of positive cases, followed by ages 45-64.

In addition, the data shows 61 deaths in Tarrant County since Aug. 10. The total deaths since tracking began in March is 483 in Tarrant County. Those age 65 and older account for 70% of all deaths in the county thus far.

Among the key indicators to watch among health experts is the number of hospitalizations. Tarrant County reported 354 lab-confirmed COVID-19 patients hospitalized as of Aug. 21. That number has declined over the last two weeks.

According to state health officials, several commercial laboratories recently submitted a backlog of test results, resulting in higher case counts in some areas of the state.