US > New Jersey > Mercer County > Trenton, NJ 08620

08620 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Groveville, NJ | Trenton, NJ | Yardville, NJ
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ZIP Code 08620: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Trenton, NJ 08620

Acceptable Alternative
Bordentown Township, NJ 08620
Bordentwn Twp, NJ 08620
Hamilton, NJ 08620

Not Acceptable, USPS
Groveville, NJ 08620
Hamilton Township, NJ 08620
Hamilton Twp, NJ 08620
Yardville, NJ 08620

  • ZIP Code Type: STANDARD
  • County: Mercer County
  • Centroid: Latitude 40.179, Longitude -74.66
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 08620 has segments in 2 Counties (Burlington, Mercer).

  • Businesses Addresses: 162
  • PO Box Addresses: 12
  • Residential Addresses: 4,601
    • Multi-Family Addresses: 5
    • Single Family Addresses: 4,596

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

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Trenton, NJ 08620 Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 12,167 (100%)
Population in Households 12,157 (99.9%)
Population in Families 10,423 (85.7%)
Population in Group Quarters1 10 ( 0.1%)
Population Density 1,108
Diversity Index2 48
 
 

INCOME

Median Household Income $107,939
Average Household Income $128,856
% of Income for Mortgage4 23%
Per Capita Income $49,971
Wealth Index5 134
Socioeconomic Status Index6 Moderate (50.2)
 

HOUSING

Total HU (Housing Units) 4,927 (100%)
Owner Occupied HU 3,793 (77.0%)
Renter Occupied HU 925 (18.8%)
Vacant Housing Units 209 ( 4.2%)
Median Home Value $392,840
Average Home Value $444,931
Housing Affordability Index3 87
 

HOUSEHOLDS

Total Households 4,718
Average Household Size 2.58
Family Households 3,388
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population 0.19% 0.01%
Households 0.22% 0.04%
Families   -0.36%
Median Household Income   1.80%
Per Capita Income   2.02%
Owner Occupied HU   0.58%

Trenton, NJ 08620 - Peer Comparisons by Rank and Percentile

The table below compares 08620 to the other 572 ZIP Codes in New Jersey by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 265 54th
Population Density # 371 35th
Median Household Income # 327 43rd
Housing Affordability Index # 413 72nd
Per Capita Income # 365 36th
Diversity Index # 378 34th

Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.


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