SearchSystems Editorial

Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. 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 on September 23, 2026.

About this guide

Butler County, Ohio, has about 400,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Butler County Sheriff's Office, 12 city agencies and two campus, state or other agencies. An arrest leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the Prosecuting Attorney files charges, a case in the Butler County Court of Common Pleas. This guide says who keeps each one, what it costs and who may see it, with the arrest counts each agency reported.

This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies, cities and common questions.

Related guides: Butler County public records, Ohio arrest records, Ohio inmate search and Ohio criminal records.

Who Makes Arrests in Butler County

The Butler County Sheriff's Office is the county agency that reports arrests to the FBI for Butler County. It reported 452 arrests for 2025.

The FBI lists ten cities in Butler County with a reporting agency of their own, with the Census population and what each reported:

  • Hamilton, 63,953 residents: 1,439 arrests reported for 2025.
  • Middletown, 52,291 residents: 896 arrests reported for 2024.
  • Fairfield (township), 45,094 residents: 602 arrests reported for 2025.
  • Fairfield, 45,094 residents: 1,986 arrests reported for 2025.
  • Oxford, 22,585 residents: 302 arrests reported for 2025.
  • Oxford (township), 22,585 residents: 6 arrests reported for 2022.
  • Monroe, 15,950 residents: 214 arrests reported for 2025.
  • Trenton, 14,131 residents: 306 arrests reported for 2025.
  • New Miami, 2,276 residents: 36 arrests reported for 2025.
  • Seven Mile, 743 residents.

A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.

The Sharonville Police Department is listed by the FBI across two counties including Butler County, so its arrests are not broken out for Butler County here.

The FBI's agency list also places these agencies in Butler County: Miami University (campus police); Butler County Metroparks (other).

How Many Arrests Each Agency Reports in Butler County

The FBI publishes every agency's monthly arrest counts on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.

  • Fairfield: 1,986 for 2025, 1,751 for 2024, 2,894 for 2020 and 4,149 for 2019; 2021, 2022 and 2023 are missing months.
  • Hamilton: 1,439 for 2025, 1,782 for 2024, 1,589 for 2023, 1,439 for 2021, 1,523 for 2020 and 1,759 for 2019; 2022 is missing months.
  • West Chester Township: 681 for 2025, 836 for 2024, 1,062 for 2023, 806 for 2022, 922 for 2021 and 1,061 for 2020.
  • Fairfield (township): 602 for 2025, 500 for 2024, 319 for 2023, 218 for 2022, 298 for 2021 and 414 for 2020.
  • Butler County Sheriff's Office: 452 for 2025, 511 for 2024, 535 for 2023 and 453 for 2022.
  • Trenton: 306 for 2025, 274 for 2024, 469 for 2023 and 488 for 2022.
  • Oxford: 302 for 2025, 269 for 2024, 397 for 2023, 321 for 2022, 424 for 2021 and 311 for 2020.
  • Monroe: 214 for 2025, 249 for 2024, 349 for 2023, 252 for 2022, 337 for 2021 and 323 for 2020.
  • Ross Township: 100 for 2025, 78 for 2024, 94 for 2023, 80 for 2022, 94 for 2021 and 73 for 2020.
  • New Miami: 36 for 2025 and 14 for 2024.
  • Middletown: 896 for 2024, 971 for 2022, 1,130 for 2021, 763 for 2020 and 997 for 2019; 2023 is missing months.
  • Oxford (township): 6 for 2022, 15 for 2021, 14 for 2020 and 23 for 2019.

Together, the ten agencies with all twelve months of 2025 on file reported 6,118 arrests that year. The same agencies with both 2025 and 2024 complete reported 6,118 in 2025 against 6,264 in 2024, down 2.3 percent.

Through March 2026, the nine agencies with every month so far on file reported 1,439 arrests, against 1,297 in the same months of 2025.

Seven Mile, Oxford (township) and Middletown reported only part of 2025 (2 months, 8 months and 7 months) and are left out of the totals.

Booking: Where People Arrested in Butler County Are Held

The county jail is where a person arrested in Butler County and kept in custody ends up, whichever agency made the arrest, though a city department may hold someone in its own cells first and a person cited and released at the scene is never booked. The jail's record of each person held, with the charges, is a public record of the arrest, and once the person is released or sentenced the record continues in the court file.

On an average day in 2024 the jail held about 810 people, down from about 1,110 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 1,150 beds, and it ran at 71 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.

SearchSystems opened and checked the jail page of the Butler County Sheriff's Office at butlersheriff.org/jail-facilities (page title: Jail Facilities | Butler County Sheriff’s Office), which answered when SearchSystems opened it on September 23, 2026.

A person sentenced to prison serves the sentence in a facility of the Ohio Department of Rehabilitation and Correction, whose inmate locator is at appgateway.drc.ohio.gov/OffenderSearch.

How to Find Out About an Arrest in Butler County

An arrest in Butler County can be traced in two places, depending on where the case stands: the case index of the Butler County Court of Common Pleas, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at docket.bcohio.gov); the Prosecuting Attorney, which decides whether an arrest becomes a charge (its page is at areacourts.bcohio.gov/attorney_services/prosecutors_assigned_to_the..., phone (513)785-5752).

Ohio does not let the public search another person's statewide criminal history. The record kept by the Ohio Bureau of Criminal Investigation goes to the person it belongs to and to employers and agencies the law authorizes; for everyone else the court's own case index is the public record of an arrest that led to a charge.

Getting a Copy of an Arrest Record in Butler County

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 Ohio Public Records Act the agency must answer promptly, within a reasonable period of time, and it may charge the actual cost of copying.

  • An arrest by the Butler County Sheriff's Office: ask its records unit.
  • An arrest in Hamilton, Middletown, Fairfield (township), Fairfield, Oxford, Oxford (township) or another of the cities listed above: the records unit of the agency that reports for that city; the city guides linked above name each city's records office.
  • An arrest by Miami University or Butler County Metroparks: the records office of the agency involved.
  • A defendant who has been charged gets the report through the case: the Prosecuting Attorney, (513)785-5752, handles discovery for pending cases.
  • The court file of a case that was filed: the Butler County Court of Common Pleas, through the court records page at docket.bcohio.gov.
  • Any county record that is not posted: the county records request page SearchSystems verified is at bcohio.gov (page title: Butler, OH).
  • Your own statewide record: a fingerprint-based WebCheck at any WebCheck location.

Cities in Butler County: Who Reports the Arrests

The FBI lists a separate arrest reporting agency for every one of the ten cities in Butler County: Hamilton, Middletown, Fairfield (township), Fairfield, Oxford, Oxford (township), Monroe, Trenton, New Miami and Seven Mile. Millville and Jacksonburg have no separate reporting agency in the FBI's list. The FBI's list also carries the West Chester Township Police Department and the Ross Township Police Department as city agencies in Butler County; West Chester Township and Ross Township are not among the cities above.

Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the Butler County Court of Common Pleas.

SearchSystems has a guide to the offices of these cities in Butler County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:

Frequently Asked Questions

How many arrests are made in Butler County each year?

Fairfield reported 1,986 arrests to the FBI for 2025, and the ten agencies with every month of 2025 on file reported 6,118 between them.

How do I find out if someone is in jail in Butler County?

Ask the Butler County Sheriff's Office; its jail page SearchSystems verified is at butlersheriff.org/jail-facilities.

Where are people arrested in Butler County booked?

Those kept in custody go to the county jail, run by the Butler County Sheriff's Office; a person cited and released at the scene is not booked.

Are arrest records public in Butler County?

The court files of criminal cases in the Butler County Court of Common Pleas are public and can be looked up through the court. The statewide criminal history kept by the Ohio Bureau of Criminal Investigation is not public; you can get your own. The arrest report itself is released by the agency that made the arrest, under the Ohio Public Records Act.

How do I get a copy of an arrest report in Butler County?

From the agency that made the arrest: the Butler County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Ohio Public Records Act the answer is due promptly, within a reasonable period of time; the county records request page SearchSystems verified is at bcohio.gov.

Is this the official Butler County website?

No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.