Mississippi has 105 prisons and jails: 2.1% of the US total of 4,960. That ranks #23 by count and #9 per person (3.57 per 100,000 residents) of 51.
Source: HIFLD Prison Boundaries (U.S. Department of Homeland Security), final release, 2025. Each facility at the centre of its boundary. The Prison Policy Initiative counts 5,077 facilities (2026); counts differ by which kinds of facility are included.
Licence: U.S. government data: no copyright, free to reuse
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<iframe src="https://get-instamaps.com/embed/rankings/prisons-jails/mississippi" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="Mississippi prisons and jails map — InstaMaps"></iframe>Hancock County Adult Detention Center · Pascagoula Restitution Center · Jackson County Adult Detention Center · Harrison County Adult Detention Center · Pearl River County Jail · Stone County Regional Correctional Facility · George-Greene County Regional Correctional Facility · Wilkinson County Community Work Center · Wilkinson County Jail · Walthall County Jail · Wilkinson County Correctional Facility · Lamar County Jail
"Mississippi has 105 prisons and jails, #23 in the US by count and #9 per person (HIFLD Prison Boundaries, 2025, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.