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Derby

Connecticutcity

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Derby

Total population

12,487

Median home value

$256,700

35.6%

Bachelor's+

Median income

$79,500

Derby$80k
National$74k

Founded

1675

Elevation31 m
Land area14 km²
Weather69°F · Mostly Cloudy
Coordinates41.33°, -73.08°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

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Active weather alerts
  • Wind Advisory · Moderate
    Wind Advisory issued September 25 at 2:48PM EDT until September 27 at 6:00AM EDT by NWS Upton NY

Source: NOAA National Weather Service.

City facts

Founded
1675
Elevation
31 m
Area
14 km²
head of government
Joseph DiMartino
Official website
www.derbyct.gov

Facts from Wikidata (CC0).

Overview

Derby 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 km2).

Read more on Wikipedia

History & geography

History

Derby was settled in 1642 as an Indian trading post under the name Paugasset by John Wakeman of New Haven, though fur traders had been in the area before and Native Americans had lived there for centuries. In 1651, the first year-round houses were completed, at which time the New Haven Colony had recognized Paugasset as a town. The residents of the town of Milford protested Paugasset's recognition as an independent town and, as a result, the order was rescinded and Paugasset returned to the Milford jurisdiction. In 1675, the former plantation of Paugasset was admitted as the township of Derby by the state legislature, named after Derby, England. Derby was incorporated on May 13, 1775. In 1836, the Colman brothers began the Birmingham Iron Foundry on the corner of Main Street and Water Street. It employed between 100 and 125 people, and was one of the many manufacturing businesses thriving in the city in the 1800s. In 1927, the company merged with Farrel Corporation of nearby Ansonia and was renamed Farrel-Birmingham Corporation. The Derby facility closed and was razed in 2000 to make way for a Home Depot. The Ansonia division is still in business, and opened their new plant in the Fountain Lake Commerce Park in 2017. In the 19th century, corsets and hoop skirts were manufactured in the city. The Kraus Corset Factory is the oldest major factory building to survive from Derby's corset manufacturing period. It was built by Sidney A. Downs, opened in 1879, and expanded in 1910. In 1987 it was added to the National Register of Historic Places. In the 1990s it was converted to apartments and underwent a second addition; a first floor parking garage and three stories of apartments were added on the north side along Roosevelt Drive (Connecticut Route 34). In 1872, the Derby…

Geography

According to the United States Census Bureau, the town has a total area of 5.4 square miles (8.7 km2), of which is land and (7.41%) is water. The city is home to the Osbornedale State Park. Derby is divided into two main sections by the Naugatuck River: East Derby and Derby Center (Birmingham). The center of Derby is approximately from New York City. The lowest elevation is 3 ft (1m) and the highest elevation is 466 ft (142m) above sea level.

Read full article on Wikipedia

Excerpted from the corresponding Wikipedia article (CC BY-SA).

Demographics & economy

Median age
46.4
Median home value
$256,700
Housing units
6,219
Poverty rate
10.8%
Unemployment
5.6%

Race & ethnicity

White
64.8%
Black
12%
Asian
2.5%
Hispanic
22.4%

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Latitude
41.3261
Longitude
-73.0826
Water area
0.35 mi²
View on OpenStreetMap

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Climate

Current forecast

This Afternoon
69°F
Mostly Cloudy
Tonight
62°F
Partly Cloudy
Wednesday
79°F
Mostly Sunny
Wednesday Night
51°F
Partly Cloudy
Thursday
65°F
Sunny
Thursday Night
50°F
Mostly Cloudy then Rain Showers

Forecast for Derby, CT from NOAA NWS API.

Air quality

Industrial & pollution facilities

Natural hazard risk

Health (adults)

High blood pressure
29.9%
Diabetes
9%
Adult obesity
34.2%
Binge drinking
15.9%
Adult smoking
12%
No leisure activity
26.8%

Age-adjusted prevalence estimates from CDC PLACES (latest release).

Walkability

Amenities nearby

Wildlife & biodiversity

Schools

Earthquake history

Photos

Sights & places nearby

Notable people from here

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Nearby places in Connecticut

Browse all places in Connecticut →

Geography & sun

Avg solar (kWh/m²/day)
3.87
Annual solar (kWh/m²)
1,413

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Nearby airports

Public attention

Wikipedia views (last 30 days)
1,352
Avg daily Wikipedia views
45
Attention level
Quiet

Pageview totals from the Wikimedia Pageviews API.

Books about Derby

Search results from Open Library.

Recent natural events nearby

Ground air-quality sensors

Recently spotted species

Research-grade observations from iNaturalist (within ~15 mi).

Nearest stream gauge

Site
HOUSATONIC RIVER AT STEVENSON, CT
Distance
5.9 mi
Streamflow
498 cfs
Gage height
2.58 ft
Water temp
17.1 °C

Live readings from USGS NWIS · measured 2026-10-13 15:30 UTC.

Events

Sources

  • • Wikipedia
  • • US Census Bureau (ACS 5-year estimates)
  • • NOAA National Weather Service
  • • Wikidata
  • • USGS NWIS (water data)
  • • iNaturalist
  • • CDC PLACES
  • • Open-Meteo / sunrise-sunset.org
  • • Wikipedia Pageviews API
  • • Open Library