A maximum security prison for men on Hunter Street in Ossining, Westchester County, on the Hudson River about an hour north of New York City. Wednesdays are open to every family, weekend days are labelled Odd or Even by the last digit of the DIN, and the free state visitor bus serves it.
City
Ossining
County
Westchester County
State
NY
Facility Type
state prison
Gender
Adult male
Custody Levels
Medium
Operator
New York State Department of Corrections and Community Supervision
Address
354 Hunter Street, Ossining, NY 10562-5442
Phone
914-941-0108
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The one open weekday, the DIN split, and no weekday holidays.
View ArticleThe street address letters go to, and the town to write.
View ArticleThe free state search and what it shows.
View ArticleA slip and a money order cost nothing. The quick ones carry a fee.
View ArticleCalls went free across New York in August 2025 and need no account.
View ArticleVisits run 8:00 AM to 3:00 PM on Wednesdays and weekends. Wednesdays are open to every family. Weekend days are labelled Odd or Even by the last digit of the DIN, and weekday holiday visiting is suspended. One visit a day, space permitting.
See the full breakdownLetters go to 354 Hunter Street, Ossining, NY 10562-5442. Sing Sing publishes no post box, and the town on the envelope is Ossining. Mail is opened and inspected at the prison and the paper is handed over.
See the full breakdownOne statewide tool covers every New York state prison and takes a DIN or a last name and first name. There is no public list of everyone at Sing Sing, and Westchester's county jail runs its own roster outside the state search.
See the full breakdownSix routes in, and the two free ones are a money order by post and the visitor lockbox at the prison. Online, the JPay app and the phone all carry a fee and post faster. Every deposit is matched to the DIN in Miami, so being close to the city changes nothing about the money.
See the full breakdownFree since August 1, 2025, with no account for a family to open or fund. Three calls of up to fifteen minutes credited every Saturday, thirty minutes on anything after that, between 7:00 AM and 11:00 PM, across fifteen numbers the person inside manages.
See the full breakdown6 of 8 questions
354 Hunter Street, Ossining, NY 10562-5442, with the person's full name and DIN on the first line and your return address in the top left corner. Sing Sing publishes no P.O. Box.
Mail & PhotosWednesdays and weekends. Wednesdays are open to all. Weekend days are labelled Odd or Even by the last digit of the DIN. Weekday holiday visiting is suspended.
Visitation8:00 AM to 3:00 PM, one non-legal visit per day based on available space. Up to three visitors can come, plus one child under five.
VisitationYes. Sing Sing is an operating maximum security prison for men run by NYSDOCCS, with a 2026 visiting schedule.
Inmate SearchThe prison is in Ossining, next to the Ossining station on the Metro-North Hudson Line, about an hour from New York City, and the free state visitor bus also serves it.
VisitationYes. Sing Sing is one of the 18 prisons served by the free state visitor bus programme run with NYSDOCCS.
VisitationNothing. New York made every call from a state prison free to families on August 1, 2025. Three calls of up to fifteen minutes are credited each Saturday, calls after those run to thirty minutes, and the window is 7:00 AM to 11:00 PM across fifteen approved numbers.
Phone CallsTo the JPay lockbox at PO Box 531190, Miami, Florida 33153, with a deposit slip, free by post and capped at $999.99 per money order. There is also a visitor lockbox at the prison taking up to $50 cash a day in total. Money never goes in the envelope.
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All information on this page comes directly from official government and facility sources. How we verify information › Last verified September 28, 2026. Official source: doccs.ny.gov/location/sing-sing-correctional-facility ›