Incarceration Trends by County

The Vera Institute of Justice's Incarceration Trends by County dataset tracks county-level jail population by year, sex, age, and race from 1970-2018. Each record in the dataset is a unique combination of year and county. To learn more about the dataset, see the Documentation at https://github.com/vera-institute/incarceration-trends?tab=readme-ov-file or the data codebook at https://github.com/vera-institute/incarceration_trends/blob/main/Incarceration%20Trends%20Codebook%2005-2025.pdf?raw=true

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Last Updated February 20, 2026, 21:57 (UTC)
Created February 20, 2026, 21:56 (UTC)