Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and September 25, 2026.
Mount Kisco, New York, in Westchester County, has about 11,000 residents (2024 Census Bureau estimate). An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the District Attorney files charges, a case in the Westchester County Supreme and County Courts. This guide says who keeps each one, what it costs and who may see it.
This guide covers who makes arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Mount Kisco public records, Westchester County arrest records, New York arrest records and New York inmate search.
Who Makes Arrests in Mount Kisco
The FBI lists no arrest reporting agency under the name of Mount Kisco.
The FBI's agency list also places these agencies in Westchester County: the Westchester County, Hillview New York City Department of Environmental Protection Police and the Westchester County, Croton-Kensico New York City Department of Environmental Police (other); the Purchase State University of New York Police (campus police).
Booking: Where People Arrested in Mount Kisco Are Held
A person kept in custody after an arrest in Mount Kisco is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
So far in 2026 the jail has held about 550 people on an average day, down from about 1,020 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 1,808 beds, and it ran at 39 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the custody page of the sheriff's office at correction.westchestercountyny.gov/westchester-inmate-search (page title: Westchester Inmate Lookup), which answered when SearchSystems opened it on September 23, 2026.
That page is the place to look for someone who was booked recently; a person cited and released at the scene, or held only a few hours by a city department, will not be on it.
A sentence of more than a year is served in state prison; the New York State Department of Corrections and Community Supervision lists its inmates at nysdoccslookup.doccs.ny.gov.
How to Find Out About an Arrest in Mount Kisco
An arrest in Mount Kisco can be traced in three places, depending on where the case stands: the custody page of the sheriff's office described above, for anyone booked into the county jail; the case index of the Westchester County Supreme and County Courts, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at westchesterclerkny.gov/legal-division/search-court-records, phone (914)995-3075); the District Attorney, which decides whether an arrest becomes a charge (its page is at newrochelleny.gov/facilities/facility/details/Westchester-County-Di...).
Statewide, eCourts is the Unified Court System's free online case search (WebCivil, WebCrims and WebFamily).
New York is one of the states that lets anyone look up another person's statewide criminal history: the Office of Court Administration sells a statewide search of criminal court records by name and date of birth, for $95 a search, through the New York State Office of Court Administration. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Mount Kisco
The report of an arrest is released by the agency that made it; the jail and the court hold their own records of the same event, but not the report. Under the Freedom of Information Law the agency must answer within 5 business days, at least with an acknowledgment and a date for the full answer, and it may charge copying at 25 cents a page.
- An arrest by the Mount Kisco police: the police department's page SearchSystems verified at mountkiscony.gov/departments/police_department/index.php (page title: Police), phone (914) 241-1100, which answered when SearchSystems opened it on September 25, 2026.
- A defendant who has been charged gets the report through the case: the District Attorney handles discovery for pending cases.
- The court file of a case that was filed: the Westchester County Supreme and County Courts, through the court records page at westchesterclerkny.gov, phone (914)995-3075.
- Your own statewide record: a fingerprint-based Record Review through the Division of Criminal Justice Services.
The Westchester County guide covers every agency in the county: Westchester County arrest records.
Frequently Asked Questions
How do I find out if someone is in jail in Mount Kisco?
Look on the custody page of the sheriff's office at correction.westchestercountyny.gov. It covers people booked into the county jail.
Where are people arrested in Mount Kisco booked?
Those kept in custody go to the county jail; a person cited and released at the scene is not booked.
Are arrest records public in Mount Kisco?
The court files of criminal cases are public, and so is the statewide criminal history kept by the New York State Office of Court Administration: the Office of Court Administration sells a statewide search of criminal court records by name and date of birth, for $95. The arrest report itself is released by the agency that made the arrest, under the Freedom of Information Law.
How do I get a copy of an arrest report in Mount Kisco?
From the agency that made the arrest: the sheriff's office or the city's police. Under the Freedom of Information Law the answer is due within 5 business days, at least with an acknowledgment and a date for the full answer.
Is this the official Mount Kisco website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.