CDC WONDER

WONDER online databases utilize a rich ad-hoc query system for the analysis of public health data. Reports and other query systems are also available.
Data & Site Updates

Changes are coming to CDC WONDER! As part of CDC’s ongoing digital modernization, we’re improving how you access public health data. In the coming months, expect to see changes that make CDC WONDER easier to navigate and simpler to understand. Have feedback about any of the changes? Reach out to us at cwus@cdc.gov.

Chronic Conditions

Disease and Disability

Communicable Diseases

Environmental Health

Health Practice & Prevention

Injury Prevention

National Notifiable Conditions

Weekly Updates

Occupational

Outbreaks

Occupational Health

Reference Data

Denotes numerical data available to query or download
Page last reviewed: September 17, 2025
Content source: CDC WONDER