COVID-19 Case Counts and Testing Figures

While COVID-19 is a disease that can cause serious illness and death, and those 65 and older or those with underlying health conditions are most vulnerable, studies by the World Health Organization estimate that approximately 80% of persons with COVID-19 have a mild illness that resolves. The remaining persons with COVID-19 have more severe illness that may lead to hospitalization, delayed recovery and occasionally death. It is important to follow the state and local health official orders and guidance, which will help to protect all of us, especially the most vulnerable in our community.


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Orange County, CA



Posted Date: 4/4/2020

Data posted each day are always preliminary and subject to change. More information may become available as individual case investigations are completed.

Cumulative Cases to Date


(includes deaths)

Cumulative Deaths to Date



Cases Reported Today



Deaths Reported Today




Cases Currently Hospitalized


* Includes ICU cases

Cases Currently in ICU


ICU - Intensive Care Units

Numbers fluctuate day-by-day due to changes in patient condition(s). Data are gathered daily at one point in time.

People tested by HCA Public Health Lab (PHL) and commercial labs since yesterday 1,070
Total people tested by HCA Public Health Lab (PHL) and commercial labs to date 9,797
HCA PHL available to test 990 specimens


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.



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.




Case Counts by Cities

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. Please note the following changes;

  • Previously, cities with a population <25,000 and fewer than 5 cases, were listed in the table with no case count number. These cities will be removed from the table until the case count reaches 5 or more; this currently includes Laguna Woods, Los Alamitos and Villa Park.
  • Going forward, unincorporated areas will be treated the same as incorporated cities; if population >25,000, the area is now included on the table with case count and if <25,000 and fewer than 5 cases, they are included in the “other” category until its case count reaches 5 or more.
  • In order to make this change, cases which were previously reported to a city, but are actually located in an unincorporated area, will be reassigned to the appropriate area. This means that some cities may see a reduction in case counts.


Aliso Viejo 51,372 8
Anaheim 359,339 74
Brea 45,606 4
Buena Park 83,384 22
Costa Mesa 115,830 18
Cypress 49,833 18
Dana Point 34,249 11
Fountain Valley 56,652 9
Fullerton 142,824 17
Garden Grove 175,155 19
Huntington Beach 203,761 55
Irvine 280,202 70
La Habra 63,542 8
La Palma 15,820 6
Ladera Ranch 30,288 8
Laguna Beach 23,358 31
Laguna Hills 31,572 7
Laguna Niguel 66,748 20
Lake Forest 86,346 15
Mission Viejo 96,434 22
Newport Beach 87,180 70
Orange 141,691 24
Placentia 52,333 16
Rancho Santa Margarita 48,960 6
San Clemente 65,405 37
San Juan Capistrano 36,821 16
Santa Ana 337,716 51
Seal Beach 25,073 3
Stanton 39,307 1
Trabuco Canyon Not Available 5
Tustin 81,369 13
Westminster 92,610 9
Yorba Linda 68,706 24
Other* 133,012 17


All of Orange County 3,222,498 786

* The "other" category includes the aggregate of the unincorporated areas/neighborhoods of the county and the cities that have a population <25,000 and <5 cases. When any of these unincorporated areas or cities reach 5 cases or more they will be added to the report.

** More information may become available as individual case investigations are completed.

1 Population estimates from the California Department of Finance:

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.


In order to better focus public health resources on the changing needs of the Orange County community, beginning March 27, the HCA is no longer collecting information about Orange County travelers returning from countries that have confirmed COVID-19 outbreaks. Community transmission of COVID-19 has been identified in Orange County since early March, and since then, most of the confirmed cases were not related to travel outside of the United States.

2020 Orange County Coronavirus Case Counts

Report ending date – March 26, 2020

    Gender Age Group
Male Female Other < 18 18-49 50-64 > 65 Unknown
Total Cases


149 101 0 1 134 76 39 0
Deaths 1 1 0 0 0 0 0 1 0
Travel Related 75 42 33 0 0 40 21 14 0
Person to Person Spread* 27 20 7 0 0 15 7 5 0
Community Acquired** 75 49 26 0 1 37 22 15 0
Under Investigation 73 39 35 0 0 42 26 5 0
*Contact to a known case. | **Not travel related or contact to known case. Report ending date – March 26, 2020