ZIP Code 08609 — Trenton, NJ | Population, Income, County & Map Data

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary City	Trenton, NJ
County	Mercer County (FIPS 34021)
State	New Jersey (FIPS 34)
Metro Area (MSA)	Trenton, NJ Metro Area (45940)
Census Region / Division	Northeast Region · Middle Atlantic Division
Coordinates	40.225746, -74.740906
Land / Water Area	1.366 mi² land · 0.005 mi² water

02Income & Economics

Distribution of the 6,100 individual tax returns filed in 08609 by adjusted gross income bracket (IRS SOI, 2022).

< $25K

42.0%

$25K–$50K

36.9%

$50K–$75K

13.4%

$75K–$100K

4.8%

$100K–$200K

2.9%

$200K+

0.0%

Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 08609's IRS income metrics, 2020–2022.

Median income (2021→2022)

$30,444

▲ 1.5%

Filers earning $200K+

0.0%

▲ 0.0 pt

Total filers

6,100

▲ 3.4%

GET /zipc/v2/zipcodes/08609/soi?year=…

Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 08609 ZCTA.

2000

15,166

2010

13,546

▼ -10.7%

2020

14,867

▲ +9.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 08609. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 08609

Trenton and its immediate neighbors, sorted by distance.

Radius 3 mi

GET /zipc/v2/distance

Distance from 08609 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP Classification	Non-Unique Zip
Facility Type	Post Office
Carrier Route Sort	D
USPS Finance Number	338550
City Aliases	Hamilton, Trenton

07Frequently Asked Questions

What county is ZIP code 08609 in?

ZIP code 08609 is in Mercer County, New Jersey (county FIPS code 34021).

What city is ZIP code 08609?

The primary USPS city for 08609 is Trenton, NJ.

What metro area (MSA) is 08609 in?

08609 is part of the Trenton, NJ Metro Area (MSA code 45940).

What is the population of ZIP code 08609?

The 2020 Census population of 08609 was 14,867 residents.

What is the median income in ZIP code 08609?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 08609 is about $30,444. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.