Reporting Conditions

Jurisdictions currently collect demographic data and report it to CDC. Not all states and territories report to CDC demographic data on vaccine recipients; the laws in each state or territory dictate whether the state can collect or report demographic data.

Jurisdictional Reporting Conditions

Texas has historically provided COVID-19 vaccination administration data to CDC in aggregate format, which impacted CDC’s ability to report metrics requiring information at the individual dose level. Although Texas still reports vaccination data in aggregate form, Texas and CDC recently collaborated to update the format of this record submission to improve COVID-19 reporting of Texas’ data on CDC’s COVID Data Tracker at the national, state, and county levels.

Previously, for Texas, CDC estimated the number of people with at least one dose and the number of people who are fully vaccinated for the populations ages 12 years or older, 18 years or older, and 65 years or older in the metrics for Texas alone and when including Texas in the national level metrics on the Vaccinations in the United States site. Additionally, Texas was omitted from several demographic and county-level graphics pages. Further, prior to October 22, 2021, all records reported by Texas were assumed to be for residents of Texas.

  • Beginning September 28, 2021, age-based metrics for Texas are directly reported rather than estimated for the populations ages 12 years or older, 18 years or older, and 65 years or older on the Vaccinations in the United States site.
  • Beginning September 28, 2021, the national counts for booster dose data on the Vaccinations in the United States site include Texas.
  • Beginning October 22, 2021, county-level graphics on Vaccinations by County, Vaccination Equity, and Vaccinations and Other Outcomes include Texas.
  • Beginning October 22, 2021, CDC is able to attribute non-residents of Texas to their respective state or territory of residence. Texas residents who received a COVID-19 vaccination in a different state or territory are also now attributed to Texas’ population-based metrics.
  • Beginning November 18, the Vaccination Demographics and Demographic Trends sites include vaccination demographic information from Texas.

New Hampshire lifted its national COVID-19 emergency response declaration in May 2021, which allows vaccine recipients to opt out of having their COVID-19 vaccinations included in the state’s IIS. As such, data submitted by New Hampshire since May 2021 may not be representative of all COVID-19 vaccinations occurring in the state.

County-level Reporting

  • California does not report the county of residence for persons receiving a COVID-19 vaccine when the resident’s county has a population of fewer than 20,000 people.
  • Hawaii does not provide county-of-residence information when reporting COVID-19 vaccination data to CDC.
  • Massachusetts does not provide COVID-19 vaccination data for Barnstable, Dukes, and Nantucket counties because of their small populations.



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