Summary for Trenton

About Trenton (Click for our profile page)

Located in: Mercer County (see below)

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

Telephone Area Codes: 609 & 640<1>

Elevation: 50 feet [15.24 m] above sea level<2>

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

Population

Year	Population
2019 Est:<3>	83,375 (1.81% decrease since 2010)
2010:	84,913 (0.57% decrease since 2000)
2000:	85,403

Total Area:<4> 8.15 sq. miles [21.1 km²] - of which 6.22% is water (0.51 sq. miles [1.3 km²])

Housing Units:<5> 33,035

Official Website: www.ci.trenton.nj.us/

GPS Coordinates (Latitude/Longitude)<6>

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

Lat: 40.220900° (or 40°13'15" N)

Lon: -74.758000° (or -74°45'28" W)

USGS Topo Map: Trenton West<7>

Federal GNIS/FIPS Codes for Trenton

GNIS ID: 885421

FIPS State / Place Code: 34 / 74000

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

About Mercer County

The city of Trenton is the County Seat for Mercer County.

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

Population

Year	Population
2019 Est:	367,430
2010	367,713 (4.83% increase since 2000)
2000:	350,761

Total Area: 228.9 sq. miles [592.8 km²] - of which 1.89% is water (4.33 sq. miles [11.2 km²])

Housing Units: 143,169

Official Website: www.mercercounty.org/

Federal GNIS/FIPS Codes for Mercer

GNIS ID: 882229

FIPS State / County Code: 34 / 021

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

About New Jersey

From the US Census

Population

Year	Population
2019 Est:	8,891,258 (1.13% increase since 2010)
2010:	8,791,894 (4.49% increase since 2000)
2000:	8,414,350

Websites for State of New Jersey

Official Website: https://www.nj.gov/

Tourism: https://www.visitnj.org/

Parks: https://www.state.nj.us/nj/things/parks/

Fishing: https://dep.nj.gov/njfw/fishing/

Hunting: https://dep.nj.gov/njfw/

Federal GNIS/FIPS Codes for State of New Jersey

GNIS ID: 1779795

FIPS State: 34

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

Off-the-Road Links ...

The official website for Trenton: www.ci.trenton.nj.us/

The official website for Mercer County: www.mercercounty.org/

The official website for State of New Jersey: https://www.nj.gov/

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 609 code has been Overlayed with the 640 area code. New phone numbers in the Trenton area will be assigned with one of these codes: 609 or 640. As a result, placing a call in the Trenton area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	The elevation is an estimate for the area around Trenton - it will be higher in some places and lower in others.
<3>	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.
<4>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Trenton. 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.
<5>	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).
<6>	Longitude & latitude values may not be the geographic center of Trenton, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<7>	Name of the USGS 7.5 Minute topographic map which includes Trenton.