Delaware has 9 prisons and jails: 0.2% of the US total of 4,960. That ranks #49 by count and #43 per person (0.86 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/delaware" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="Delaware prisons and jails map — InstaMaps"></iframe>Sussex Violation of Probation Center · Sussex Community Corrections Center · Sussex Correctional Institution · Community Corrections Treatment Center · James T Vaughn Correctional Center · Hazel D. Plant Womens Treatment Facility · Baylor Women's Correctional Institution · Howard R Young Correctional Institution · Plummer Community Corrections Center
"Delaware has 9 prisons and jails, #49 in the US by count and #43 per person (HIFLD Prison Boundaries, 2025, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.