Transmission electron micrograph of SARS-CoV-2 virus particles, emerging from the surface of a cell cultured in the lab. Image captured and color-enhanced at NIAID's Rocky Mountain Laboratories in Hamilton, Montana. Image courtesy of National Institute of Health, NIAID.
On Sep. 26, two days after surpassing 1.45 million cumulative COVID-19 cases, Los Angeles County surpassed 26,000 COVID-19 deaths. The county lost 1,530 of these lives since the beginning of July. Last week, however, Los Angeles County continues to see falling new COVID-19 cases, as it completed six straight weeks of falling cases.
7-Day Moving Average: 1,462 ▼ (previous day's 7-day average: 1,483)
7-Day Moving Average: 27 ▲ (previous day's 7-day average: 25)
Also see: Day-to-Day Case & Death Numbers since January 2020.
As reported by the Los Angeles County Dept. of Public Health, Long Beach Health Dept., and Pasadena Public Health Dept.
COVID-19 IN CALIFORNIA
Updated September 24 with data from September 23:
Total Cases: 4,448,666 | Total Deaths: 68,087
Cases Reported For This Day: 7,925 | Deaths Reported This Day: 100
Data not reported on weekends and state holidays. Data for day may include unreported numbers from days prior.
Source: California Dept. of Public Health
Number of daily new cases reported in Los Angeles County over the past 14 days. Blue bars represent number of new cases each day. The dashed orange line shows the 7-day moving average. The percentage labelled "Rising" or "Falling" or "Steady" represents the difference between today's 7-day average number of new cases versus that of 14 days ago.
Los Angeles Almanac Chart
Please Note: Case numbers for Sep. 11-12 in the chart above are the Almanac's statistical "work-back" estimates, because Public Health released no specific data for these dates, due to a data systems upgrade. Public Health did say that some backlogged cases were added as they executed their upgrades, which may account for the spike during these two days.
Timeline of COVID-19 Cases by Community in Los Angeles County
Top 25 Communities, March 2020 through September 2021
Also featured: Top 25 Communities for New Cases During August 2021 Only.
Video shows time-lapse spread of COVID-19 across Los Angeles County, from March 16 to July 22, 2020.
7-Day Moving Average of Daily New COVID-19 Cases - March 10, 2020 through September 26, 2021
"7-Day Moving Average" is the average number of reported cases over the day of report plus the previous six days. The average changes (or "moves" or "rolls") with each successive day as the seven-day period shifts forward with each new day.
Los Angeles Almanac chart.
September 2020 - Present
For weeks prior to Sep. 2020, see: Chart of Weekly Cases, Mar. 2020 - Aug. 2020.
(Also see: Table of COVID-19 Cases & Deaths Each Day in Los Angeles County)
Los Angeles Almanac chart.
Note regarding week, ending May 29, in chart above: 3,857 additional cases were added to the cumulative number of COVID-19 cases for this week. These cases (lighter orange portion of that week's data bar in the chart) actually occurred over the previous year, as far back as March 16, 2020. These were not initially identified as COVID-19 cases, but only later determined to have been COVID-19 infections.
Note regarding week, ending Aug. 21, in chart above: Public Health added 10,163 additional cases on Aug. 20 to the cumulative number for the county. These were cases of individuals who, over the course of the pandemic, had a repeat positive test more than 90 days after their initial infection.
Note regarding week, ending Sep. 11, in chart above: Public Health did not release specific data for Sep. 11, due to a data systems upgrade. The final cumulative number of cases here includes an estimated number for Sep. 11 based upon the Almanac's statistical "work-back" for that date.
For weeks prior to Sep. 2020, see: Chart of Weekly Deaths, Mar. 2020 - Aug. 2020.
Los Angeles Almanac chart.
Note regarding week, ending Feb. 27, in chart above: 806 additional deaths were added to the cumulative number of COVID-19 deaths for this week. These deaths (purple portion of that week's data bar in the chart) actually occurred during the surge that lasted from Dec. 3 through Feb. 3. These, however, were not initially identified as COVID-19 deaths, but only were later determined to have been deaths due to COVID-19, after an extensive review of vital records. The actual number of COVID-19 deaths during this week came to 729.
Note regarding week, ending May 29, in chart above: 118 additional deaths were added to the cumulative number of COVID-19 deaths for this week. These deaths (also the purple portion of that week's data bar in the chart) actually occurred over the previous year. As in the additional deaths noted above, these were not initially identified as COVID-19 deaths, but only were later determined to have been deaths due to COVID-19.
Note regarding week, ending Sep. 11, in chart above: Public Health did not release specific data for Sep. 11, due to a data systems upgrade. The final cumulative number of deaths here includes an estimated number for Sep. 11 based upon the Almanac's statistical "work-back" for that date.
Source: Numbers as reported daily by the Los Angeles County Dept. of Public Health, Long Beach Health Dept., and Pasadena Public Health Dept. The cities of Long Beach and Pasadena operate public health departments independent of the Los Angeles County Department of Public Health. Los Angeles County's other 86 cities, including the City of Los Angeles, fall under the county's public health department for public health services and monitoring.
As of September 26, 2021
By Los Angeles County Service Planning Areas
(Please note that we separated the Santa Clarita Valley region from the county's designated San Fernando Valley Service Planning Area for statistical purposes.)
Percentage of overall county population for each region is in blue type above number of cases.
The following two maps show cumulative cases by region in Los Angeles County, for the first 25 days of September, and, by comparison, for the preceding month. The September map will be updated every 5 days.
For maps of cases by county region, only for the month of July, 2021, and month of June, 2021.
By City of Los Angeles Regions
Percentage of overall city population for each city region is in blue type above number of cases.
Note: The total number of cases for all regions within the county or the city of Los Angeles may not match the total reported for that jurisdiction as whole. We count only cases specifically identified by community. For ratio of cases to population, we use U.S. Census Bureau 2018 estimates as the most recent population numbers available.
The following two maps show cumulative cases by city region within the City of Los Angeles for the first 25 days of September, and by comparison, for the preceding month. The September map will be updated every 5 days.
For maps of cases by region within the city of Los Angeles, only for the month of July, 2021, and month of June, 2021.
Source: From data reported by the Los Angeles County Dept. of Public Health, Long Beach Health Dept., and Pasadena Public Health Dept. Charts created by the Los Angeles Almanac.
Also see: Cases by Specific City/Community.
COVID-19 Deaths by Los Angeles County Service Planning Areas
The following map, updated monthly, shows cumulative deaths by region in Los Angeles County, through August 31, 2021.
Percentage of overall city population for each city region is in blue type above number of cases.
COVID-19 Deaths by Region Map through July 2021 | June 2021 | May 2021 | April 2021 | March 2021 | February 2021 | January 2021
COVID-19 AND RACE IN LOS ANGELES COUNTY
Although COVID-19 has reached every corner of Los Angeles County, its impact and vaccines administered to fight it have not been proportionate among our population.
Last 7 Days (For all Los Angeles County, except Long Beach and Pasadena).
| Date | Total Hospitalized Confirmed COVID-19 Patients | COVID-19 Patients in ICU |
|---|---|---|
| 9/22/2021 | 991 | 307 |
| 9/21/2021 | 991 | 307 |
| 9/20/2021 | 1,018 | 316 |
| 9/19/2021 | 1,034 | 310 |
| 9/18/2021 | 1,053 | 305 |
| 9/17/2021 | 1,070 | 321 |
| 9/16/2021 | 1,125 | 338 |
Source: Los Angeles County Dept. of Public Health COVID-19 Surveillance Dashboard
As of September 22, 2021
Cumulative Persons Tested: 8,541,563
7-Day Average Daily Positive Rate: 1.5% ▲ (7 days before: 1.4%)
Cumulative Positive Rate: 15.7% ◀ ▶ (7 days before: 15.7%)
Note: For all Los Angeles County, except Long Beach and Pasadena.
Source: Los Angeles County Dept. of Public Health COVID-19 Surveillance Dashboard
L.A.’S LAST PANDEMIC
A century before COVID-19, Los Angeles had to live through its first global pandemic. It may even sound familiar.
As of September 26, 2021
For Los Angeles County, including Long Beach and Pasadena
Also see: COVID-19 Deaths by Community, Los Angeles County
Through June 22, 2020, the city of Avalon on Santa Catalina Island was the last of Los Angeles County's 88 incorporated cities to be free of any confirmed COVID-19 cases. That was until the following day when, on June 23, it was reported that the city had its first case.
Places of residence for 16,956 cases remain under investigation. Remaining cases are distributed as below:
(The City of Los Angeles, as a whole, has recorded 593,612 cases)
Place cursor over bar for specific number. Click here for this list in text format.
Created with Google Charts
Numbers above are subject to change based upon further investigation.
** Unincorporated Community
PLEASE NOTE: Los Angeles County Public Health cautions that the public should not assume that any location in the county is safer from exposure than any other. Cases are occurring across the county, so remain aware and practice social distancing. It should also be noted that an unusually high number of cases within a particular community may possibly be attributed to an outbreak at one or more institutional settings (such as a nursing or jail facility).
Sources:
Los Angeles County Department of Public Health
Long Beach Health Department
Pasadena Public Health Department
On Mar. 11, Los Angeles County Public Health reported the county's first virus-connected death. The patient was a 60-year-old female visitor from outside the county who had recently traveled outside the U.S. The second death was reported on Mar. 19 in the Pasadena area.
On Mar. 9, Los Angeles County Public Health reported the county's first positive case of COVID-19 where the patient had an unknown source of exposure to the virus. The second case was reported on Mar. 11.
The first COVID-19 case in Los Angeles County, a foreign traveler passing through Los Angeles International Airport, was announced on Jan. 26, 2020. The patient had since recovered and no person-to-person transmissions of the virus had been connected to this person.
Also from the Los Angeles County Dept. of Public Health:
