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 between September 23, 2026 and September 30, 2026.
Fitchburg, Massachusetts, in Worcester County, has about 42,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Fitchburg is held at the county jail, run by the About - Worcester County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Fitchburg public records, Worcester County inmate search, Fitchburg arrest records, Fitchburg warrants, Fitchburg criminal records, Fitchburg court records, Massachusetts arrest records and Massachusetts inmate search.
Finding Someone in Custody in Fitchburg
The county jail, run by the About - Worcester County Sheriff's Office, holds everyone kept in custody after an arrest in Fitchburg, from every agency.
SearchSystems opened and checked the jail page of the About - Worcester County Sheriff's Office at worcestercountysheriff.com/about (page title: About | Worcester County Sheriff's Office), phone 508.854.1800, which answered when SearchSystems opened it on September 30, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at 508.854.1800.
The Worcester County Jail by the Numbers
On an average day in 2025 the jail held about 690 people, down from about 860 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 1,250 beds, and it ran at 54 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Worcester County has about 881,000 residents (2024 Census Bureau estimate), so the jail holds about 8 people for every 10,000 residents.
Who Books People Into the Worcester County Jail
The About - Worcester County Sheriff's Office and the agency that reports for Fitchburg (filed by the FBI as Fitchburg Police Department) make the arrests that end in a booking in and around Fitchburg.
The FBI's agency list also places nine campus police departments, one state agency and one state police unit in Worcester County (the arrest records guide names each one).
The largest arrest counts reported to the FBI were Worcester's 2,593 for 2025, Petersham's 1,188 for 2025 and Southbridge Town's 698 for 2025.
Together, the 59 agencies in Worcester County with all twelve months of 2025 on file reported 13,481 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Fitchburg arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Massachusetts Department of Correction lists its inmates at mass.gov/how-to/find-someone-housed-in-a-massachusetts-prison.
Frequently Asked Questions
How do I find an inmate in Fitchburg?
Ask the About - Worcester County Sheriff's Office at 508.854.1800; its jail page SearchSystems verified is at worcestercountysheriff.com/about.
How many people are in the Worcester County jail?
About 690 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 1,250 beds.
What is the phone number for the Worcester County jail?
508.854.1800, the number on the page of the About - Worcester County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Worcester County go?
To a facility of the Massachusetts Department of Correction; its inmate locator is at mass.gov.
Is this the official Fitchburg 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.