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Summary for Derby

About Derby (Click for our profile page)

Located in: New Haven County (see below)

Time Zone: Derby lies in the Eastern Time Zone (EST/EDT)

Telephone Area Codes: 203 & 475<1>

ZIP Code: 06418<2>

Elevation: 30 feet [9.14 m] above sea level<3>

From the 2010 US Census (For more detail, see our Census Page for Derby)

Population

Year	Population
2019 Est:<4>	12,326 (4.46% decrease since 2010)
2010:	12,902 (4.12% increase since 2000)
2000:	12,391

Total Area:<5> 5.4 sq. miles [14 km²] - of which 6.48% is water (0.35 sq. miles [0.9 km²])

Housing Units:<6> 5,849

GPS Coordinates (Latitude/Longitude)<7>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Derby:

Lat: 41.327800° (or 41°19'40" N)

Lon: -73.086000° (or -73°5'9" W)

USGS Topo Map: Ansonia<8>

Federal GNIS/FIPS Codes for Derby

GNIS ID: 2378273

FIPS State / Place Code: 09 / 19480

(For more about Federal Codes, see our Misc Page for Derby)

About New Haven County

From the 2010 US Census (For more detail, see our Census Page for New Haven)

Population

Year	Population
2019 Est:	854,757 (1% decrease since 2010)
2010	863,357 (4.78% increase since 2000)
2000:	824,008

Total Area: 862 sq. miles [2,232.7 km²] - of which 29.88% is water (257.6 sq. miles [667.1 km²])

Housing Units: 362,004

Federal GNIS/FIPS Codes for New Haven

GNIS ID: 212798

FIPS State / County Code: 09 / 009

(For more about Federal Codes, see our Misc Page for Derby)

About Connecticut

From the US Census

Population

Year	Population
2019 Est:	3,566,022 (0.23% decrease since 2010)
2010:	3,574,097 (4.95% increase since 2000)
2000:	3,405,565

Websites for State of Connecticut

Official Website: https://portal.ct.gov/

Tourism: https://ctvisit.com/

Parks: https://portal.ct.gov/deep/state-parks/connecticut-state-parks-and-forests

Fishing: https://portal.ct.gov/deep/fishing/ct-fishing

Hunting: https://portal.ct.gov/deep/hunting/ct-hunting-and-trapping

Federal GNIS/FIPS Codes for State of Connecticut

GNIS ID: 1779780

FIPS State: 09

(For more about Federal Codes, see our Misc Page for Derby)

Footnotes ...

<1>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 203 code has been Overlayed with the 475 area code. New phone numbers in the Derby area will be assigned with one of these codes: 203 or 475. As a result, placing a call in the Derby area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Derby). When looking for a ZIP Code, whether Derby or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<3>	The elevation is an estimate for the area around Derby - it will be higher in some places and lower in others.
<4>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<5>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Derby. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<6>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<7>	Longitude & latitude values may not be the geographic center of Derby, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<8>	Name of the USGS 7.5 Minute topographic map which includes Derby.