Derby, CT
Local News
- Shelton-Derby 2026 Election Results: Polls Close, Votes Being Counted — Patch
- Work Zone Cams On Route 34 In Derby — Valley Independent Sentinel
- Collapsing porches made this Derby fire especially difficult — CTPost
- Joseph Kubik Obituary (1947 - 2026) - Derby, CT - Connecticut Post — Legacy | Obituary
- Crash closes Route 8 south in Derby — WFSB
Official Local Resources
City of Derby · Naugatuck Valley Planning Region · portal.ct.gov · Connecticut Department of Motor Vehicles
Derby /ˈdɜːrbi/ is a city in New Haven County, Connecticut, United States, approximately 8 miles (13 km) west-northwest of New Haven. It is located in southwest Connecticut at the confluence of the Housatonic and Naugatuck rivers. It shares borders with the cities of Ansonia to the north and Shelton to the southwest, and the towns of Orange to the south, Seymour to the northwest, and Woodbridge to the east. The city is part of the Naugatuck Valley Planning Region. The population was 12,325 at the 2020 census. It is the smallest city in Connecticut by area, at 5.3 square miles (14 km).
Derby was settled in 1642 as an Indian trading post under the name Paugasset. It was named after Derby, England, in 1675. It included what are now Ansonia, Seymour, Oxford, and parts of Beacon Falls.
Derby is home to the first electric trolley system in New England, only the second in the United States. It is also home to the first electric locomotive in U.S. history to be built and successfully used commercially for hauling freight. The locomotive, built in 1888, is still kept in running condition by the Shore Line Trolley Museum.