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COVID-19 Facts

How many cases of COVID-19 (Coronavirus) are in the United States?

Updated 10/6/21


The total population of the U.S. is 328,200,000 people. Since January 25, 2020, the total number of confirmed and presumed COVID-19 cases in the U.S. is 43,533,168 with 698,672 deaths that are confirmed or presumed due to COVID-19. That means that about 13.2% of the population have or had confirmed or presumed COVID-19. See below for CDC's definition for "presumed". The lowest number of cases since the pandemic began was in late June 2021. By August, cases had been increasing, likely due to the Delta variant, however, since September 1, they have fallen 35% and have declined more than 13% in the last week.


The percentage of hospitalizations had been decreasing from its 7-day average peak on January 9, 2021 but began rising in August in alignment with the increase in cases. Since early September, however, the rate of hospitalizations have been declining as cases have declined. Although more than 83% of people over the age of 65 are fully vaccinated, as of September 28, 2021 the rate of hospitalization continues to be highest for people over 70 years of age (6.9%) and over 60 (4.3%) in comparison to people under 60.


Deaths had been decreasing since the highest peak on January 13, 2021, climbed in August, and began declining again in mid-September. For those confirmed or presumed to have COVID-19 nationally, the cumulative death rate (# of deaths in relation to # of cases) has dropped to 1.6%. See below for the Centers for Disease Control (CDC)'s definition for "presumed." Among all age groups, nearly half of the deaths (323,962 as of September 26, 2021) had influenza and pneumonia as conditions contributing to the deaths where COVID-19 was listed on the death certificate.

According to the CDC, about 16% of all confirmed and presumed deaths due to COVID-19 have been between 50-64 years of age; 22% have been between 65-74 years of age; 27% have been between 75-84 years of age; and 30% are over the age of 85. Thus, about 95% of all deaths have occurred in people 50 and older. And about 80% of all deaths have occurred in people 65 and older, although that age group represents only about 13% of all cases in the entire population. More than 35% of all deaths are residents in long-term care facilities (e.g. residents in need of assistance activities of daily living) although less than 1% of the U.S. population live in those facilities.

Case Classification Resource (Definition of Presumed)

All CDC statistics attributable to COVID-19 are either confirmed or presumed. Presumed cases are defined as any ONE of the following:

  • Meets clinical criteria AND epidemiologic linkage without confirmed laboratory testing performed for SARS-CoV-2
  • Meets presumptive laboratory evidence
  • Meets vital records criteria with no confirmatory laboratory evidence for SARS-CoV-2

More specifics about criteria, epidemiologic linkage and laboratory evidence noted above is in the CDC's August 5, 2020 position statement here.

Who is at risk for a severe infection from COVID-19?

Updated 10/6/21

In addition to age being a factor (people 65 and over are at greatest risk), people at any age may be at greater risk for a severe infection if they have certain underlying medical conditions. The risk of severe COVID-19 increases as the number of underlying medical conditions increase. Underlying conditions include (in alphabetical order):

  • Cancer
  • Chronic kidney disease
  • Chronic lung diseases, including COPD (chronic obstructive pulmonary disease) and asthma
  • Dementia or other neurological conditions
  • Diabetes (type 1 or type 2)
  • Down syndrome
  • Heart conditions (heart failure, coronary artery disease, cardiomyopathies or hypertension)
  • HIV infection
  • Immunocompromised state (weakened immune system)
  • Liver disease
  • Overweight (body mass index [BMI] of 25 or higher); or Obesity ([BMI] of 30 or higher); the higher the BMI, the risk increases.
  • Pregnancy and recently pregnant
  • Sickle cell disease or thalassemia
  • Smoking, current or former
  • Solid organ or blood stem cell transplant
  • Stroke or cerebrovascular disease
  • Substance use disorders

Other conditions might be at an increased risk for severe illness from COVID-19. Visit the CDC website for more information about underlying medical conditions.

How many cases of COVID-19 (Coronavirus) are there in Los Angeles County?

Updated 10/6/21


The total population in Los Angeles County is 10,040,000 people. As of October 1, 2021 in Los Angeles County, since the beginning of the pandemic in 2020, the total number of confirmed cases is 1,460,645. That means that about 14.5% of the local population cumulatively has or had a reported case of COVID-19. After a low number of cases in June and July, they rose in August and have been fluctuating in September. The average positivity rate is at 1.19%.

Hospitalizations & Deaths

Of all cases cumulatively, 102,718 or 7% have been hospitalized, with 26,126 deaths. The cumulative death rate (# of deaths in relation to # of cases since the beginning of the pandemic) is 1.78%, slightly higher than the state and national rate. The number of hospitalizations and deaths appear to have peaked in early September and have been declining.

Based on last data provided by LA County, about 91% of all patients who have died had underlying medical conditions. Death rate by ethnicity is: 50% Hispanic/Latino, 22% White, 12.5% Asian, 8% Black, less than 1% Native American/Pacific Islander and Other Races.

Where can I get up-to-date information?

The information on this page has been obtained from the Centers for Disease Control (CDC) and the Los Angeles County Department of Public Health. You may check back here as we periodically update this information.

Our Resources page also has links to the Centers for Disease Control (CDC), Los Angeles County Department of Public Health, City of Los Angeles, and World Health Organization for up-to-date information locally, nationally and worldwide.

The information on this page is provided for general, informational purposes and not personalized medical advice. Please contact your health care provider for medical advice specific to your situation. If you are having a medical emergency please call 911.

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