Notes on ACS API Variable Formats

Notes on ACS API Variable Types

Notes on ACS Estimate and Annotation Values

Using the Census API with the American Community Survey Webinar

Discover how to access ACS datasets through the U.S. Census Bureau's Application Programming Interface (API) to create custom apps.

API Forum

Need help? Check out our Developer Forum to submit questions, share your apps, and provide feedback.

FTP Server

To download full datasets, visit our FTP Server.

American Community Survey (ACS)

The American Community Survey is the premier source for information about America's changing population, housing and workforce.