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. Every office link was opened and checked against the office's own site between September 24, 2026 and September 26, 2026.
Derby, Connecticut, in New Haven County, has about 13,000 residents (2024 Census Bureau estimate). In Connecticut the jails are the state's, so one locator covers everyone held after an arrest in Derby. 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, who books people and common questions.
Related guides: Derby public records, New Haven County inmate search, Derby arrest records, Derby warrants, Derby criminal records, Derby court records, Connecticut arrest records and Connecticut inmate search.
Finding Someone in Custody in Derby
Anyone held after an arrest in Derby is in the custody of the Connecticut Department of Correction, which runs the jails as well as the prisons in Connecticut, so the inmate lookup is the state's.
The Connecticut Department of Correction's inmate locator is at portal.ct.gov/DOC/Miscellaneous/Inmate-Information.
Who Books People
The agency that reports for Derby (filed by the FBI as Derby Police Department) and, elsewhere, the state police make the arrests in and around Derby.
The largest arrest counts reported to the FBI were New Haven's 5,974 for 2025, Waterbury's 5,508 for 2025 and Meriden's 1,265 for 2025.
Together, the seven agencies in New Haven County with all twelve months of 2025 on file reported 15,770 arrests to the FBI that year. Those kept in custody were booked; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Derby arrest records.
Frequently Asked Questions
How do I find an inmate in Derby?
Through the Connecticut Department of Correction's inmate locator at portal.ct.gov; the department holds everyone in custody in Connecticut.
Where do people sentenced to prison in New Haven County go?
To a facility of the Connecticut Department of Correction; its inmate locator is at portal.ct.gov.
Is this the official Derby 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.