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US ZIP Code Profile

ZIP Code 08628
Trenton, New Jersey

ZIP code 08628 is in Trenton, located in Mercer County, New Jersey, within the Trenton metro area. Its 2020 Census population was 10,310. The estimated median adjusted gross income per tax return is $67,230, and about 7% of filers report $200,000 or more.

2020 Population
10,310
Census ZCTA
County
Mercer
FIPS 34021
Median income (est.)
$67,230
IRS SOI 2022
Land Area
6.979 mi²
+ 0.316 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
Coordinates40.26442, -74.82705
Land / Water Area6.979 mi² land · 0.316 mi² water

02Income & Economics

Distribution of the 5,850 individual tax returns filed in 08628 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
17.1%
$25K–$50K
19.8%
$50K–$75K
19.0%
$75K–$100K
14.4%
$100K–$200K
22.6%
$200K+
7.2%
The $200,000+ bracket accounts for 25% of 08628's total adjusted gross income, from 7% of returns — a concentration that drives the gap between the median ($67,230) 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 08628's IRS income metrics, 2020–2022.

Median income (2021→2022)
$67,230
▲ 2.8%
Filers earning $200K+
7.2%
▲ 0.3 pt
Total filers
5,850
▲ 3.0%
GET /zipc/v2/zipcodes/08628/soi?year=… $60K 2020 $65K 2021 $67K 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 08628 ZCTA.

2000
9,679
 
2010
9,054
▼ -6.5%
2020
10,310
▲ +13.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 08628. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 08628

Trenton and its immediate neighbors, sorted by distance.

3 mi
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Distance from 08628 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 AliasesEwing, Ewing Township, Ewing Twp, Trenton, West Trenton

07Frequently Asked Questions

What county is ZIP code 08628 in?

ZIP code 08628 is in Mercer County, New Jersey (county FIPS code 34021).

What city is ZIP code 08628?

The primary USPS city for 08628 is Trenton, NJ.

What metro area (MSA) is 08628 in?

08628 is part of the Trenton, NJ Metro Area (MSA code 45940).

What is the population of ZIP code 08628?

The 2020 Census population of 08628 was 10,310 residents.

What is the median income in ZIP code 08628?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 08628 is about $67,230, with around 7% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.