Influenza Vaccination Coverage by Age, Race, and U.S. State

Influenza vaccination coverage data from the National Immunization Survey-Flu and the Behavioral Risk Factor Surveillance System. It provides national, regional, and state-level estimates for the general population aged 6 months and older, broken down by age group and race/ethnicity. The dataset is maintained by the U.S. Department of Health & Human Services and was last updated in January 2026.

Use Cases

• Analyze vaccination coverage trends by age group and race/ethnicity across different U.S. states.
• Compare regional and state-level influenza immunization rates for public health planning.
• Model the relationship between demographic factors like age group and race/ethnicity and vaccination uptake.
• Monitor annual changes in flu vaccination coverage at national, regional, and state geographic levels.

Strengths

• Data originates from two major U.S. public health surveillance systems: NIS-Flu and BRFSS.
• Provides breakdowns by key demographic variables including age group and race/ethnicity.
• Offers geographic granularity at national, regional, and state levels.
• Dataset was updated in January 2026, indicating recent maintenance.

Limitations

• Specific data volume metrics like row count and column structure are unknown.
• Coverage is limited to the United States, limiting international applicability.
• Relies on survey-based estimates which may have sampling biases and margins of error.

Provenance

Source

U.S. Department of Health & Human Services, via CDC's FluVaxView.

Collection Method

Combined data from the National Immunization Survey-Flu (NIS-Flu) and the Behavioral Risk Factor Surveillance System (BRFSS).

Freshness

Last updated on 2026-01-22.

Geography

United States, at national, regional, and state levels.