Residential delivery area · New Jersey
ZIP Code 08618: Trenton, NJ
ZIP code 08618 uses the postal name Trenton, New Jersey and lies entirely in Mercer County (Census 2020 ZIP-county file). About 36,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Trenton's 12 residential ZIP codes. Median household income is $50,390 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Trenton (46%) and The College of New Jersey (5%); 50% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Trenton · 12 residential ZIPs
- County
- Mercer County
- Census places
- Trenton (46%); The College of New Jersey (5%) census-designated place
- Metro area
- Trenton-Princeton, NJ
- House district
- NJ-12 119th Congress
- State
- New Jersey
- Time zone
- Eastern
- Land area
- 5.9 sq mi · 6,019 people per sq mi
- PO Box ZIPs
- 15 more ZIP codes use the name Trenton for PO boxes or single organizations
Where is ZIP code 08618?
08618 centers on 40.249°, -74.790° and covers 5.9 square miles of land plus 0.4 of water. It borders 6 ZIP codes: 08638, 08628, 08608, 08609, 19067, 08534.
The map draws ZIP code areas only. For the streets inside 08618, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 08618 compare with the rest of Trenton?
| Measure | 08618 | In Trenton | In Mercer County | In NJ |
|---|---|---|---|---|
| People (ACS 2020-2024) | 35,634 | 1st of 12 | 2nd of 26 | 67th of 598 |
| Median household income | $50k | 11th of 11 | 22nd of 22 | 465th of 476 |
| Median home value | $227k | 8th of 10 | 20th of 22 | 493rd of 515 |
Its median household income is higher than in 15% of U.S. residential ZIP codes, and it is denser than 95% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 08618?
The 2020 Census counted 37,544 people in 08618; the ACS, which samples households over 2020-2024, estimates 35,634. Between the 2010 and 2020 censuses its population fell 1.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 35,634
- 2020 Census count
- 37,544−1.8% since 2010 (38,229)
- Households
- 13,477
- Median age
- 35.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 08618?
Of the 35,634 people the ACS estimates in 08618, 22.6% are under 18 and 16.3% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (58.2%), then White (not Hispanic) (20.4%).
- Under 1822.6%
- 18 to 6461.1%
- 65 and older16.3%
- Black, not Hispanic58.2%
- White, not Hispanic20.4%
- Hispanic or Latino15.7%
- Other or two or more2.9%
- Asian, not Hispanic2.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 08618 earn?
Median household income is $50,390 (ACS 2020-2024), the 22nd highest of the 22 ranked ZIP codes in Mercer County. It is not measurably different from 2015-2019 ($50,058 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $50,390±$5,516
- Income per person
- $29,501
- Below the poverty line
- 21.0%
- Unemployed (of the labor force)
- 11.8%
- Adults 25+ with a bachelor's degree
- 24.7%
- Adjusted gross income per tax return, 2022
- $50,43015,800 returns; wages 79% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 08618?
FHFA's house price index for 08618, built from repeat sales and appraisals of the same homes, rose 122% from 2015 to 2025 and rose 79% from 2020 to 2025, and moved +4.1% in 2025.
- Median home value (owners' estimate)
- $227,000
- Median gross rent
- $1,102
- Homes owned by their occupants
- 45.8%
- Housing units
- 14,771
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 08618?
370 business establishments had a location in this ZIP code in 2023, 32 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)62
- Retail trade59
- Health care and social assistance50
- Professional, scientific, and technical services34
- Construction33
- Accommodation and food services23
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 08618?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 08638 | Trenton | 22,816 | $67k | 1.4 mi |
| 08628 | Trenton | 9,831 | $108k | 2.2 mi |
| 08608 | Trenton | 1,250 | $61k | 2.4 mi |
| 08609 | Trenton | 15,938 | $68k | 3.1 mi |
| 19067 | Morrisville, PA | 53,885 | $134k | 3.9 mi |
| 08534 | Pennington | 13,272 | $176k | 5.5 mi |
| 08629 | Trenton | 13,013 | $83k | 3.7 mi (near) |
| 08648 | Lawrence Township | 31,323 | $126k | 4.5 mi (near) |
| 08619 | Trenton | 24,089 | $106k | 5.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.