https://www.sentencingproject.org/research/detailed-state-data-tool/

The Detailed Data Tool from The Sentencing Project provides a federal- and state-level look at data related to incarcerated people and prison populations. This includes total corrections populations, youth in custody data and data about the gender, race and ethnicity of incarcerated people. The Sentencing Project also maintains data looking at prison population over time by state.

From The Sentencing Project