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Orange County, CA
COVID-19 CASE COUNTS
Posted Date: 5/27/2020
Data posted each day are always preliminary and subject to change. More information may become available as individual case investigations are completed.
* While every case of the new coronavirus that causes COVID-19 is reported to HCA, there is no practical way to find out if they’ve recovered. Moreover, many people may have experienced some symptoms of COVID-19, but were not tested, making it impossible to know the exact number of COVID-19 infections and recoveries. However, because it is important to know approximately how many residents may have been exposed and recovered in Orange County, an attempt to estimate the number of recovered cases by taking the difference between the prior 28-day cumulative case count and current day mortality to determine the current day recovered total. Please note that these data are only an estimate and should be interpreted with caution. [Methodology: Prior 28-day cumulative case count – current day mortality = current day recovered]
Numbers fluctuate day-by-day due to changes in patient condition(s). Data are gathered daily at one point in time.
Additional Data on Orange County COVID-19 Cases
Case counts will fluctuate day to day. It is important to look at trends over time when reviewing these data rather than drawing conclusions from any individual data points.
The solid orange line represents the average number of cases reported over the past seven (7) days.
Note: Numbers fluctuate day-by-day due to changes in patient condition(s). Data are gathered daily at one point in time.
Effective May 6, 2020, counts of Orange County COVID-19 tests performed replaced the count of people tested for COVID-19. This change more accurately reflects testing conducted by Public Health, clinical and commercial labs.
Data is preliminary, and test counts will fluctuate day-to-day. It's important to look at trends over time when reviewing these data rather than drawing conclusions from any individual data points.
The solid orange line represents the average number of tests over the past seven (7) days.
Data is preliminary, and test counts will fluctuate day-to-day. Data are gathered daily at point in time.
Note: Numbers fluctuate day-by-day due to changes in patient condition(s) and the number of hospitals reporting. Data are gathered at one point in time. To see the number of hospitals reporting, move your cursor over the bar of the date of interest. A total of 25 hospitals are eligible to report.
Unknown represents cases for which data is not available or still under investigation.
Case Counts by Cities
Effective May 4, 2020, cases incarcerated in Orange County jails were moved to the "Other" category, resulting in a reduction in the Orange and Santa Ana city case counts.
|Coto de Caza||14,931||6|
|Rancho Mission Viejo||Not Available||7|
|Rancho Santa Margarita||48,960||21|
|San Juan Capistrano||36,821||53|
|Trabuco Canyon||Not Available||13|
|All of Orange County||3,222,498||5,646|
* The "Other" category includes the aggregate case count of the unincorporated areas of the county that have <5 cases, plus cases incarcerated in Orange County jails.
** More information may become available as individual case investigations are completed.
1 Population estimates from the California Department of Finance: www.dof.ca.gov/Forecasting/Demographics/Estimates/e-1/
2 Data are preliminary and subject to change.
3 COVID-19 now has reached community transmission status, which means people may have contracted the illness elsewhere in the County. This may not necessarily be in the city where they live. These data should not be interpreted as an indication of activity in any specific location. Under a community transmission status, the true prevalence of this disease may not be known as most cases are likely not diagnosed or reported.
4 To provide more inclusive reporting and case distribution throughout Orange County, effective April 2, 2020, positive COVID-19 cases by city will include incorporated cities and unincorporated areas of the county.
Click above to view a COVID-19 Dashboard featuring World and U.S. mapping and critical trends data, generated by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University.