Reporting COVID-19 Vaccinations in the United States




EUA has been granted for use of the Pfizer-BioNTech vaccine among people aged 16 years and older and for use of both the Moderna vaccine and the J&J/Janssen vaccine among people aged 18 years and older. Therefore, vaccine use is limited among those younger than age 18 years, who represent approximately 22% of the US population. Inclusion of all age groups in the calculations helps to provide a better measure of community immunity.

Jurisdictions may use more targeted population counts for the denominators in their rate calculations (e.g., people over age 18 years or over age 16 years), which would result in values different than those reported on the CDC COVID Data Tracker.

Allocation is the number of doses that will be made available for jurisdictions to order. Weekly first-dose allocations are provided to jurisdictions on Tuesdays; they can begin placing orders on Thursdays. After doses are ordered, deliveries begin arriving the following Monday. These data are not posted on CDC’s COVID Data Tracker but are updated every Tuesday at data.cdc.gov.

Doses delivered is the total number of vaccine doses that have been delivered. Doses delivered include those delivered to vaccine providers by the jurisdiction, and to retail pharmacies, long-term care facilities, Federal Emergency Management Agency (FEMA) and Health Resources and Services Administration (HRSA) partner sites, and Federal entity facilities in that state or territory. Data for each Federal entity are also reflected at the national level in the agency call out boxes on the map; combining these data with jurisdiction-level doses delivered data will result in double counting. CDC’s COVID Data Tracker attributes each dose to the state or territory to which the dose was delivered.

  • For US states, Washington D.C., the US Virgin Islands, and Puerto Rico, total counts of COVID-19 vaccine doses include doses delivered since December 14, 2020.
  • For Palau, Micronesia, Marshall Islands, Guam, American Samoa, and Northern Marianas Islands, total counts of COVID-19 doses include doses marked as shipped in VTrckS since December 13, 2020.

Doses delivered/rate per 100,000 is the total number of vaccine doses delivered for every 100,000 people (overall, per the population aged 18 years and older, and per the population aged 65 years and older). This allows comparison between areas with different population sizes. The rate is calculated by dividing the number of doses delivered in a jurisdiction by the total population, the population 18 years and older, and the population 65 years and older in that jurisdiction as estimated by the US Census. Total population includes everyone, regardless of vaccine eligibility. For example, the rate per 100,000 includes people of all ages.

Doses administered is the total number of vaccine doses that have been given to people in the United States since December 14, 2020, the date of the first dose given to a person in the United States, not as part of a clinical trial, but rather under the EUAs. Doses administered in a state or territory include those administered in jurisdictional partner clinics, retail pharmacies, long-term care facilities, FEMA and HRSA partner sites, and Federal entity facilities in that state or territory. Data for each Federal entity are also reflected at the national level in the agency call out boxes on the map. Combining Federal entity data with state or territory-level data will result in double counting. For this measure, the CDC’s COVID Data Tracker attributes each dose to the state or territory in which the person received the dose.

Doses administered/rate per 100,000 is the total number of vaccine doses given for every 100,000 people (overall, per the population aged 18 years and older and per the population aged 65 years and older). This allows comparison between areas with different population sizes. The rate is calculated by dividing the number of doses administered in a jurisdiction by the total population, the population 18 years and older, and the population 65 years and older in that jurisdiction as estimated by the US Census. Total population (see footnotes in the COVID Data Tracker: COVID-19 Vaccination in the United States)  includes everyone, regardless of vaccine eligibility. The rate per 100,000 includes people of all ages.

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