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.
Williamson County, Tennessee, has about 269,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Williamson County Sheriff's Office, five city agencies and one other agency. 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 District Attorney General files charges, a case in the Williamson County Circuit and Chancery Courts. 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: Williamson County public records, Tennessee arrest records, Tennessee inmate search and Tennessee criminal records.
Who Makes Arrests in Williamson County
The Williamson County Sheriff's Office is the county agency that reports arrests to the FBI for Williamson County. It reported 2,458 arrests for 2025.
Arrests inside five of the county's cities are reported to the FBI by an agency of the city's own, listed here with the Census population and what each reported:
- Franklin, 89,142 residents: 1,442 arrests reported for 2025.
- Spring Hill, 59,398 residents: 639 arrests reported for 2025.
- Brentwood, 45,525 residents: 467 arrests reported for 2025.
- Nolensville, 15,809 residents: 65 arrests reported for 2025.
- Fairview, 10,535 residents: 467 arrests reported for 2025.
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 FBI's agency list also places one more agency in Williamson County: Drug Task Force's 21st Judicial District (other).
How Many Arrests Each Agency Reports in Williamson 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.
- Williamson County Sheriff's Office: 2,458 for 2025, 2,578 for 2024, 2,899 for 2023, 2,931 for 2022, 2,813 for 2021 and 2,445 for 2020.
- Franklin: 1,442 for 2025, 1,419 for 2024, 1,472 for 2023, 1,588 for 2022, 1,385 for 2021 and 1,454 for 2020.
- Spring Hill: 639 for 2025, 783 for 2024, 884 for 2023, 941 for 2022, 1,050 for 2021 and 698 for 2020.
- Brentwood: 467 for 2025, 539 for 2024, 458 for 2023, 393 for 2022, 408 for 2021 and 437 for 2020.
- Fairview: 467 for 2025, 453 for 2024, 632 for 2023, 487 for 2022, 555 for 2021 and 559 for 2020.
- Nolensville: 65 for 2025, 55 for 2024, 85 for 2023, 103 for 2022, 79 for 2021 and 61 for 2020.
Together, the six agencies with all twelve months of 2025 on file reported 5,538 arrests that year. The same agencies with both 2025 and 2024 complete reported 5,538 in 2025 against 5,827 in 2024, down 5 percent.
Through August 2026, the six agencies with every month so far on file reported 3,672 arrests, against 3,680 in the same months of 2025.
Booking: Where People Arrested in Williamson County Are Held
A person kept in custody after an arrest in Williamson County 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.
On an average day in 2024 the jail held about 320 people, down from about 380 in 2019. Its rated capacity in 2024 was 452 beds, and it ran at 70 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 Williamson County Sheriff's Office at williamsoncountysherifftn.com/detention-division/inmate-services-in... (page title: Inmate Services & Information | Williamson County Sheriff’s Office), phone 615-790-5550, which answered when SearchSystems opened it on September 23, 2026.
A person sentenced to prison serves the sentence in a facility of the Tennessee Department of Correction, whose inmate locator is at foil.app.tn.gov/foil/search.jsp.
How to Find Out About an Arrest in Williamson County
Whether someone was arrested in Williamson County, and what came of it, shows up in two places: the case index of the Williamson County Circuit and Chancery Courts, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at williamsoncounty-tn.gov/221/Court-System); the District Attorney General, which decides whether an arrest becomes a charge (its page is at tennesseeda.gov/district-21).
Tennessee is one of the states that lets anyone look up another person's statewide criminal history: TORIS lets anyone run a name-based criminal history search online, for $29 a search, through the Tennessee Bureau of Investigation. 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 Williamson County
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. Under the Tennessee Public Records Act the agency must answer within 7 business days, and it may charge copying, and labor after the first hour.
- An arrest by the Williamson County Sheriff's Office: ask its records unit, reached through the office at 615-790-5550.
- An arrest in Franklin, Spring Hill, Brentwood, Nolensville or Fairview: 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 Drug Task Force's 21st Judicial District: the records office of the agency involved.
- A defendant who has been charged gets the report through the case: the District Attorney General handles discovery for pending cases.
- The court file of a case that was filed: the Williamson County Circuit and Chancery Courts, through the court records page at williamsoncounty-tn.gov/221/Court-System.
- Any county record that is not posted: the county records request page SearchSystems verified is at williamsoncountytn.justfoia.com (page title: Williamson County Government, TN Public Portal | JustFOIA).
- Your own statewide record: the same request described above, for your own name.
Cities in Williamson County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for five of the six cities in Williamson County: Franklin, Spring Hill, Brentwood, Nolensville and Fairview. Thompson's Station has no separate reporting agency in the FBI's list.
Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the Williamson County Circuit and Chancery Courts.
SearchSystems has a guide to the offices of these cities in Williamson County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:
- Franklin (89,142)
- Spring Hill (59,398)
- Brentwood (45,525)
- Fairview (10,535)
Frequently Asked Questions
How many arrests are made in Williamson County each year?
The Williamson County Sheriff's Office reported 2,458 arrests to the FBI for 2025, and the six agencies with every month of 2025 on file reported 5,538 between them.
How do I find out if someone is in jail in Williamson County?
Ask the Williamson County Sheriff's Office at 615-790-5550; its jail page SearchSystems verified is at williamsoncountysherifftn.com.
Where are people arrested in Williamson County booked?
Those kept in custody go to the county jail, run by the Williamson County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Williamson County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Tennessee Bureau of Investigation: TORIS lets anyone run a name-based criminal history search online, for $29. The arrest report itself is released by the agency that made the arrest, under the Tennessee Public Records Act.
How do I get a copy of an arrest report in Williamson County?
From the agency that made the arrest: the Williamson County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Tennessee Public Records Act the answer is due within 7 business days; the county records request page SearchSystems verified is at williamsoncountytn.justfoia.com.
Is this the official Williamson 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.
