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CDC WONDER API for Data Query Web Service

Access data in the WONDER online databases immediately with automated data queries in XML format over HTTP, for use in your own web pages or widgets.

Send a POST request to with one parameter named request_xml that points to an XML document containing the request. The result of the request will be returned as an XML document. The results include the data table and applicable caveats and footnotes. All data use restrictions are enforced and still apply to these data.

The XML document that specifies the request has a specific format and valid parameters specific to each unique online database. Please Contact us to learn more.

This page last reviewed: Wednesday, August 13, 2014
This information is provided as technical reference material. Please contact us at to request a simple text version of this document.