Data Portal
On this Portal, you will find comparative performance measures for counties nationwide. The measures get at how cases are being handled from arrest to post-conviction. Wherever possible, the data can be filtered by race/ethnicity; indigency; sex; age; offense type and severity.
Explore your local criminal justice system's performance
Take a Deeper Dive
Our Process
MFJ acquires its data in partnership with state and local leaders. In the process, we solicit feedback on our metrics and counsel on the limitations of the data we’re acquiring. Back in Rochester, NY, our researchers and technologists work on cleaning and coding the data, while outside auditors help to ensure the accuracy and validity of our findings. Our team also works on software automation to streamline the process of cleaning and standardizing data from disparate sources. With this combination of strategies, MFJ is able to aggregate case-level data into one central repository.
There are many factors that affect the results of these Measures. Data presented here are intended to show general patterns and to highlight areas that might need further investigation. For more details on Measures, read our Methodology. Measures are created using a standardized methodology that may differ from that of individual agencies. We advise caution in making direct comparisons between the Measures displayed here and other publicly available data sources.