data and tools documentation

For full details on the CJARS Database, including overall structure, source data notes, and included variables, please refer to the CJARS data documentation. Click above to download the most up-to-date version.

Past versions associated with prior data vintages can be found here.

Data accuracy and transparency are paramount. The CJARS Benchmarking Report provides comparisons with other widely-used sources of data on justice-involved populations. Click above to download the most up-to-date version.

Past versions associated with prior data vintages can be found here.

Click on the CJARS Proposal Guide to learn more about how to build a research proposal to request our data through the Census Bureau’s Federal Statistical Research Data Center (FSRDC) network.