🇺🇸 United States ZIP Code

STANDARD

08628

Trenton

ZIP Code 08628 is a standard zip code serving Trenton, Trenton, New Jersey (NJ), in Mercer County, United States. It has an estimated population of 9,054 with a median household income of $80,449. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: New Jersey (NJ)
County: Mercer
City: Trenton
Timezone: America/New_York

Coordinates

Latitude: 40.265500
Longitude: -74.816800

Geographic Details

Land Area: 7.00 mi²
Water Area: 0.31 mi²
Population Density: 1293.0 people per mi² (80th percentile)
Bounding Box: 40.290477°N, 40.238508°S, -74.780667°E, -74.856508°W

With 9,054 residents spread across 7.00 square miles, this area has a population density of 1293.0 people per square mile.

Demographics

9,054

Population

65th percentile

$80,449

Median Income

90th percentile

$268,800

Median Home Value

85th percentile

7.00 mi²

Land Area

The median household income in 08628 is $80,449, and the median home value is $268,800. This places the area in the top 25% nationally for household income.

Housing

4,224

Total Units

3,948

Occupied Units

93.5%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Trenton, NJ.

08601

Trenton

08602

Trenton

08603

Trenton

08604

Trenton

08605

Trenton

08606

Trenton

08607

Trenton

08608

Trenton

08609

Trenton

08610

Trenton

Similar ZIP Codes in New Jersey

ZIP codes with similar median household income in New Jersey.

08872

Sayreville

$72,956

07648

Norwood

$92,357

07461

Sussex

$84,470

07003

Bloomfield

$70,434

07723

Deal

$81,875

08837

Edison

$74,589

07457

Riverdale

$84,924

07073

East Rutherford

$68,965

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.