Understanding Differential Privacy

Why we're modernizing protections – and how differential privacy works.

Disclosure Avoidance for the 2020 Census: An Introduction

In this handbook, the U.S. Census Bureau’s Disclosure Avoidance System is described in the context of the 2020 Census Redistricting Data Summary File.

2020 Disclosure Avoidance System: Frequently Asked Questions

Answers to questions about Disclosure Avoidance and the 2020 Census.

Disclosure Avoidance Protections by Data Product

Learn more about why we are modernizing protections and how differential privacy works.

2020 Census Briefs

Series of briefs describing how disclosure avoidance methods are being applied to 2020 Census data products and implications of those methods for data users.

Demographic and Housing Characteristics File

(DHC) Population and housing statistics on a range of topics.

Detailed Demographic and Housing Characteristics File A

(Detailed DHC-A) Population counts and sex by age statistics for approximately 370 detailed racial and ethnic groups.

Detailed Demographic and Housing Characteristics File B

(Detailed DHC-B) Household type and tenure information for the same detailed race and ethnicity groups in Detailed DHC-A

Supplemental Demographic and Housing Characteristics File

(S-DHC) Complex characteristics that supplement the data about households and people available in the DHC product

2010 Demonstration Data Products Suite – Redistricting and DHC

“Production Settings” Demonstration Microdata with “Noisy Measurement” Files 

Privacy Protected Microdata Files

(PPMF) Complete set of privacy protected records