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US ZIP Code Profile

ZIP Code 08690
Trenton, New Jersey

ZIP code 08690 is in Trenton, located in Mercer County, New Jersey, within the Trenton metro area. Its 2020 Census population was 19,470. The estimated median adjusted gross income per tax return is $73,538, and about 10% of filers report $200,000 or more.

2020 Population
19,470
Census ZCTA
County
Mercer
FIPS 34021
Median income (est.)
$73,538
IRS SOI 2022
Land Area
7.007 mi²
+ 0.107 mi² water

01Location & Geography

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

Primary CityTrenton, NJ
CountyMercer County (FIPS 34021)
StateNew Jersey (FIPS 34)
Metro Area (MSA)Trenton, NJ Metro Area (45940)
Census Region / DivisionNortheast Region · Middle Atlantic Division
Coordinates40.224506, -74.66028
Land / Water Area7.007 mi² land · 0.107 mi² water

02Income & Economics

Distribution of the 10,660 individual tax returns filed in 08690 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.1%
$25K–$50K
16.8%
$50K–$75K
16.0%
$75K–$100K
11.9%
$100K–$200K
27.0%
$200K+
10.1%
The $200,000+ bracket accounts for 33% of 08690's total adjusted gross income, from 10% of returns — a concentration that drives the gap between the median ($73,538) and the average.
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 08690's IRS income metrics, 2020–2022.

Median income (2021→2022)
$73,538
▲ 1.9%
Filers earning $200K+
10.1%
▲ 0.9 pt
Total filers
10,660
▲ 0.7%
GET /zipc/v2/zipcodes/08690/soi?year=… $67K 2020 $72K 2021 $74K 2022
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 08690 ZCTA.

2000
18,624
 
2010
18,567
▼ -0.3%
2020
19,470
▲ +4.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 08690. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 08690

Trenton and its immediate neighbors, sorted by distance.

3 mi
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Distance from 08690 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortB
USPS Finance Number338550
City AliasesHamilton, Hamilton Square, Hamilton Township, Hamilton Twp, Trenton, Hamilton Sq

07Frequently Asked Questions

What county is ZIP code 08690 in?

ZIP code 08690 is in Mercer County, New Jersey (county FIPS code 34021).

What city is ZIP code 08690?

The primary USPS city for 08690 is Trenton, NJ.

What metro area (MSA) is 08690 in?

08690 is part of the Trenton, NJ Metro Area (MSA code 45940).

What is the population of ZIP code 08690?

The 2020 Census population of 08690 was 19,470 residents.

What is the median income in ZIP code 08690?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 08690 is about $73,538, with around 10% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.