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This site is for informational purposes only and does not constitute legal advice. It is an independent website — not a prison, not a corrections department, and not a government agency — and it cannot contact a facility on anyone's behalf. Information is compiled from publicly available sources and may not reflect current policies. Always verify details directly with the facility before visiting.
A men's prison in London, in central Ohio, spanning minimum to close security.
Overview
Madison Correctional Institution (MaCI), on State Route 56 in London, Madison County, is a men’s prison spanning minimum to close security in central Ohio. It holds about 2,500 men and opened in 1987. Madison is a separate prison from the nearby London Correctional Institution, also in London — confirm which one holds the person.
What Makes Madison Different
It is a separate prison from the London Correctional Institution, which is also in London — confirm which one holds the person before traveling.
It spans minimum to close security, holding men across a range of custody levels.
It is in London, central Ohio, west of Columbus.
It opened in 1987.
Visiting
The statewide ODRC rules above — the approved visitor list, the dress code, ID, and item limits — apply at Madison Correctional Institution. The facility’s own arrangements:
Distances are approximate, based on map routing. Visitor parking is on site.
Nearby Services
London has gas, food, and lodging. The nearest 24-hour emergency room is Madison Health in London.
Mail
Personal mail does not go to the prison. Ohio routes incoming letters and cards to the off-site ODRC Mail Processing Center in Youngstown, where they are opened, scanned, and delivered to the person electronically on a ViaPath tablet; address them with the person’s name and ID number. Legal mail, publications (publisher- or retailer-only books, magazines, and newspapers), and packages still go directly to the facility. Full rules are in Mail & Packages.
Learn More
For detailed information about visiting and communicating with someone in an Ohio state prison:
Visiting in Ohio — the approved list, dress code, and ViaPath reservations
Mail & Packages — the off-site mail center and what still goes to the prison
This page is compiled from the following publicly available sources. Policies change
without notice — confirm current details with the facility before relying on them.