Residential delivery area · New Jersey
ZIP Code 08609: Trenton, NJ
ZIP code 08609 is in Trenton, New Jersey, entirely in Mercer County (Census 2020 ZIP-county file). About 16,000 people live there (Census Bureau, ACS 2020-2024), the 8th most populous of Trenton's 12 residential ZIP codes. Median household income is $68,238 (Census Bureau, ACS 2020-2024). By Census place, 62% of its land lies in Trenton; 38% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Trenton · 12 residential ZIPs
- County
- Mercer County
- Census places
- Trenton
- Metro area
- Trenton-Princeton, NJ
- House districts
- NJ-12 (62%), NJ-3 (38%) 119th Congress, by share of land
- State
- New Jersey
- Time zone
- Eastern
- Land area
- 1.3 sq mi · 12,111 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 08609?
08609 centers on 40.226°, -74.741° and covers 1.3 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 08629, 08608, 08638, 08619, 08611, 08618.
The map draws ZIP code areas only. For the streets inside 08609, 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 08609 compare with the rest of Trenton?
| Measure | 08609 | In Trenton | In Mercer County | In NJ |
|---|---|---|---|---|
| People (ACS 2020-2024) | 15,938 | 8th of 12 | 12th of 26 | 214th of 598 |
| Median household income | $68k | 8th of 11 | 19th of 22 | 433rd of 476 |
| Median home value | $104k | not ranked | not ranked | not ranked |
08609's median home value is not ranked: its 90% margin of error (±$55,270) is more than a quarter of the figure ($103,700). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
Its median household income is higher than in 44% of U.S. residential ZIP codes, and it is denser than 98% 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 08609?
The 2020 Census counted 14,867 people in 08609; the ACS, which samples households over 2020-2024, estimates 15,938. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 15,938±2,196 (90% margin)
- 2020 Census count
- 14,867
- Households
- 4,880
- Median age
- 33.4
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 08609?
Of the 15,938 people the ACS estimates in 08609, 28.0% are under 18 and 8.9% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (49.7%), then Black (not Hispanic) (41.4%).
- Under 1828.0%
- 18 to 6463.1%
- 65 and older8.9%
- Hispanic or Latino49.7%
- Black, not Hispanic41.4%
- White, not Hispanic4.4%
- Other or two or more3.7%
- Asian, not Hispanic0.9%
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 08609 earn?
Median household income is $68,238 (ACS 2020-2024), the 19th highest of the 22 ranked ZIP codes in Mercer County.
- Median household income
- $68,238
- Income per person
- $38,926
- Below the poverty line
- 18.1%
- Unemployed (of the labor force)
- 10.2%
- Adults 25+ with a bachelor's degree
- 8.2%
- Adjusted gross income per tax return, 2022
- $35,2826,100 returns; wages 87% 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 08609?
FHFA's house price index for 08609, built from repeat sales and appraisals of the same homes, rose 147% from 2015 to 2025 and rose 112% from 2020 to 2025, and moved +5.0% in 2025.
- Median home value (owners' estimate)
- $103,700
- Median gross rent
- $1,391
- Homes owned by their occupants
- 29.8%
- Housing units
- 5,248
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 08609?
216 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade44
- Other services (except public administration)28
- Health care and social assistance25
- Construction24
- Accommodation and food services22
- Wholesale trade14
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 08609?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 08629 | Trenton | 13,013 | $83k | 0.6 mi |
| 08608 | Trenton | 1,250 | $61k | 1.4 mi |
| 08638 | Trenton | 22,816 | $67k | 2.3 mi |
| 08619 | Trenton | 24,089 | $106k | 2.6 mi |
| 08611 | Trenton | 31,995 | $57k | 2.9 mi |
| 08618 | Trenton | 35,634 | $50k | 3.1 mi |
| 08610 | Trenton | 33,465 | $84k | 2.6 mi (near) |
| 08648 | Lawrence Township | 31,323 | $126k | 4.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.