What is data disaggregation?
Breaking down government data into the building blocks of equity, inclusion, and fairness across our nation.
What is data disaggregation?
Breaking down government data into the building blocks of equityinclusionfairness across all 50 states.

At A Glance: Current Progress Toward Data Disaggregation Nationwide
Our ongoing “Disaggregation Nation” report series shows building momentum and state-by-state progress.
Download and read each of our three signature reports on the state of data disaggregation nationwide, and use our interactive map (updated August 2025) for a deeper dive into each state.

Disaggregation means breaking down large data categories into more specific subcategories.
“Data disaggregation” refers to the collection, reporting, and analysis of information on specific subgroups by race, ethnicity, and other characteristics. When data are disaggregated, researchers are better able to analyze differences between groups, as well as the relationship between multiple variables, such as race and age.
The Data Disaggregation Action Network (D-DAN) works to advance and implement federal and state policies as they relate to data disaggregation by race and ethnicity through the engagement and empowerment of communities. The D-DAN state and national advocacy infrastructure helps communities achieve equity by engaging stakeholders, policymakers, and communities on the need for disaggregated data and by collaborating to improve data quality and accessibility.
Use our D-DAN resource library and Community Partner Toolkit to advance data disaggregation in your state and community.
Use our D-DAN resource library and Community Partner Toolkit to advance data disaggregation in your state and community.
Our resource library provides insights into the state of data disaggregation efforts across the country and provides opportunities for your organization and community leaders to join this crucial work. The “Data Disaggregation Deconstructed” blog series explores how data disaggregation in various policy areas can enhance equity.






