Enhancing privacy protections for the 2020 Census


The US Census Bureau has always carried out privacy protections in the form of top-coding, swapping, and suppressing data, but these protections have been minimal.
 

With the 2020 Census, the Census Bureau is modernizing and strengthening how it protects privacy in the statistics it releases. A newer protection framework applies algorithms to modify the statistics of the data. This added "noise" protects your data while still yielding accurate results when aggregated.

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Apps


Explore an introduction to differential privacy, a dashboard to help you compare data for your community, and a narrative map of census tract population counts.

What is Differential Privacy? How will it affect our work?

What is Differential Privacy? How will it affect our work?

Access a synthesis of differential privacy for the 2020 Census and learn about its implications.

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Compare Places dashboard

Compare Places dashboard

Compare the 2010 place level Summary File 1 (SF1) dataset against 2010 place level differentially private data.

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April Demonstration Census Data

April Demonstration Census Data

Explore 2020 census tract population counts in this narrative map.

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Understand how differential privacy affects census data


Using the latest demonstration data from the Census Bureau, you can create a web map comparing published 2010 Census data to 2010 Census data with differential privacy applied.

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A close up of US Census 2020 paperwork that displays the agency’s logo and address