U.S. Child Vaccination Coverage Estimates by Birth Cohort and Geography

National, regional, and state-level vaccination coverage estimates for children aged 0-35 months from the National Immunization Survey-Child. The dataset includes estimates for multiple vaccines and doses, with data structured by birth year cohorts and geography. It is hosted by data.cdc.gov and was last updated on April 2, 2026.

Use Cases

• Analyze geographic disparities in immunization using the Geography, Estimate (%), and Vaccine columns.
• Model vaccination coverage trends over time using the Birth Year/Birth Cohort and Estimate (%) columns.
• Assess statistical confidence in coverage estimates using the 95% CI (%) and Sample Size columns.
• Compare uptake for specific vaccine doses across states using the Vaccine, Dose, Geography, and Estimate (%) columns.

Strengths

• Data is sourced from the authoritative National Immunization Survey-Child conducted by the CDC.
• Includes multiple geographic granularities (National, regional, state, selected local area) as indicated by the Geography Type column.
• Provides statistical confidence intervals via the 95% CI (%) column for each estimate.

Limitations

• Row count and total dataset size are unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

data.cdc.gov via the National Immunization Survey-Child.

Collection Method

Survey-based estimates, likely from household telephone interviews.

Time Range

Covers birth year cohorts for children 0-35 months old; specific years are not stated.

Freshness

Last updated 2026-04-02 15:18:00; freshness should be verified.

Geography

United States, with national, regional, state, and selected local area coverage.