* As of October 28, 2023. Unclassified inmates have not yet been assigned a security level. Detailed information regarding security levels in federal prisons can be accessed .
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U.S. federal inmates breakdown 2023, by security level
As of October 28, 2023, about 35.4 percent of federal inmates in the United States were in low security prison facilities. A further 12.1 percent of inmates were in high security facilities in that year.
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US Bureau of Justice Statistics. (October 28, 2023). Percentage of sentenced prisoners under federal jurisdiction in the United States in 2023, by security level [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 05, 2026, from /statistics/252985/percentage-of-prisoners-under-federal-jurisdiction-in-the-us-by-security-level/
US Bureau of Justice Statistics. "Percentage of sentenced prisoners under federal jurisdiction in the United States in 2023, by security level." Chart. October 28, 2023. ÌÇÐÄÆƽâ°æ. Accessed August 05, 2026. /statistics/252985/percentage-of-prisoners-under-federal-jurisdiction-in-the-us-by-security-level/
US Bureau of Justice Statistics. (2023). Percentage of sentenced prisoners under federal jurisdiction in the United States in 2023, by security level. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 05, 2026. /statistics/252985/percentage-of-prisoners-under-federal-jurisdiction-in-the-us-by-security-level/
US Bureau of Justice Statistics. "Percentage of Sentenced Prisoners under Federal Jurisdiction in The United States in 2023, by Security Level." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 28 Oct 2023, /statistics/252985/percentage-of-prisoners-under-federal-jurisdiction-in-the-us-by-security-level/
US Bureau of Justice Statistics, Percentage of sentenced prisoners under federal jurisdiction in the United States in 2023, by security level ÌÇÐÄÆƽâ°æ, /statistics/252985/percentage-of-prisoners-under-federal-jurisdiction-in-the-us-by-security-level/ (last visited August 05, 2026)
Percentage of sentenced prisoners under federal jurisdiction in the United States in 2023, by security level [Graph], US Bureau of Justice Statistics, October 28, 2023. [Online]. Available: /statistics/252985/percentage-of-prisoners-under-federal-jurisdiction-in-the-us-by-security-level/
