Trenton, NJ Demographics & ZIP Codes
Trenton, New Jersey demographics and median household income by ZIP code (in Mercer County) — 7 ZIP codes — population 129,933 — median income $67,335 — avg. home value $197,450. Compare income, housing, and population across ZIP codes on US5.
Trenton demographics
Trenton, New Jersey covers 7 ZIP codes primarily in Mercer County, with a combined ZIP-area population of about 129,933.
Across ZIP codes with age data, the average median age is about 35.9 years.
Median household income in Trenton
The average median household income across ZIP codes in Trenton, New Jersey is about $67,335 — about 43% below the NJ ZIP average ($118,570), and about 10% below the U.S. median ($75,149).
Among ZIPs with income data, 08628 is near the top at about $101,075, while 08618 is near the bottom at about $48,179.
Housing in Trenton
For housing in Trenton, New Jersey, the average median home value is about $197,450 and the average median rent is about $1,130.
The most populous ZIP in this set is 08618 (about 37,162 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Trenton
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 08618 | Trenton | Mercer County | NJ | 37,162 | $48,179 | $211,800 |
| 08611 | Trenton | Mercer County | NJ | 32,786 | $50,806 | $142,400 |
| 08638 | Trenton | Mercer County | NJ | 23,373 | $65,650 | $226,700 |
| 08629 | Trenton | Mercer County | NJ | 13,015 | $81,367 | $149,000 |
| 08609 | Trenton | Mercer County | NJ | 13,000 | $56,932 | $96,700 |
| 08628 | Trenton | Mercer County | NJ | 9,479 | $101,075 | $358,100 |
| 08608 | Trenton | Mercer County | NJ | 1,118 | — | — |
Frequently asked questions
What are the demographics of Trenton?
Trenton, New Jersey has a combined ZIP-area population of about 129,933 across 7 ZIP codes (primarily Mercer County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Trenton?
The average median household income across ZIP codes in Trenton, New Jersey is about $67,335, about 43% below the state ZIP average ($118,570), and about 10% below the U.S. median ($75,149). Average median home value is about $197,450. Among ZIPs with data, 08628 is near the top ($101,075) and 08618 is near the bottom ($48,179).
How many ZIP codes are in Trenton?
Trenton, New Jersey includes 7 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Trenton?
This page lists ZIP codes in Trenton, New Jersey with population, median household income, and home value. Select a ZIP for a full demographics profile.