Residential delivery area · New Jersey
ZIP Code 08852: Monmouth Junction, NJ
ZIP code 08852 uses the postal name Monmouth Junction, New Jersey and lies entirely in Middlesex County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $133,209 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Monmouth Junction (32%), Heathcote (11%), Kendall Park (9%) and Deans (8%); 40% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Monmouth Junction · its only residential ZIP
- County
- Middlesex County
- Census places
- Monmouth Junction (32%) census-designated place; Heathcote (11%) census-designated place; Kendall Park (9%) census-designated place; Deans (8%) census-designated place
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NJ-12 119th Congress
- State
- New Jersey
- Time zone
- Eastern
- Land area
- 13.3 sq mi · 1,355 people per sq mi
Where is ZIP code 08852?
08852 centers on 40.390°, -74.544° and covers 13.3 square miles of land plus 0.1 of water. It borders 7 ZIP codes: 08824, 08810, 08536, 08902, 08512, 08540, 08831.
The map draws ZIP code areas only. For the streets inside 08852, 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 08852 compare with the rest of Middlesex County?
| Measure | 08852 | In Middlesex County | In NJ |
|---|---|---|---|
| People (ACS 2020-2024) | 18,062 | 25th of 42 | 194th of 598 |
| Median household income | $133k | 11th of 40 | 150th of 476 |
| Median home value | $523k | 8th of 40 | 194th of 515 |
Its median household income is higher than in 94% of U.S. residential ZIP codes, and it is denser than 81% 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 08852?
The 2020 Census counted 18,956 people in 08852; the ACS, which samples households over 2020-2024, estimates 18,062. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 18,062
- 2020 Census count
- 18,956
- Households
- 6,694
- Median age
- 39.0
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 08852?
Of the 18,062 people the ACS estimates in 08852, 23.1% are under 18 and 13.4% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (55.3%), then White (not Hispanic) (27.3%).
- Under 1823.1%
- 18 to 6463.5%
- 65 and older13.4%
- Asian, not Hispanic55.3%
- White, not Hispanic27.3%
- Hispanic or Latino8.8%
- Black, not Hispanic6.0%
- Other or two or more2.7%
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 08852 earn?
Median household income is $133,209 (ACS 2020-2024), the 11th highest of the 40 ranked ZIP codes in Middlesex County.
- Median household income
- $133,209
- Income per person
- $64,114
- Below the poverty line
- 6.2%
- Unemployed (of the labor force)
- 5.2%
- Adults 25+ with a bachelor's degree
- 67.4%
- Adjusted gross income per tax return, 2022
- $132,9249,330 returns; wages 81% 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 08852?
FHFA's house price index for 08852, built from repeat sales and appraisals of the same homes, rose 75% from 2015 to 2025 and rose 59% from 2020 to 2025, and moved +2.5% in 2025.
- Median home value (owners' estimate)
- $523,000
- Median gross rent
- $1,970
- Homes owned by their occupants
- 65.5%
- Housing units
- 6,752
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 08852?
502 business establishments had a location in this ZIP code in 2023, 21 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services171
- Health care and social assistance43
- Accommodation and food services37
- Wholesale trade34
- Other services (except public administration)32
- Construction31
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 08852?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 08824 | Kendall Park | 13,366 | $175k | 2.2 mi |
| 08810 | Dayton | 7,952 | $152k | 3.2 mi |
| 08536 | Plainsboro | 20,817 | $138k | 4.5 mi |
| 08902 | North Brunswick | 43,932 | $121k | 4.5 mi |
| 08512 | Cranbury | 12,928 | $119k | 4.6 mi |
| 08540 | Princeton | 50,388 | $177k | 6.2 mi |
| 08831 | Monroe Township | 55,658 | $109k | 7.0 mi |
| 08823 | Franklin Park | 8,884 | $116k | 3.5 mi (near) |
| 08528 | Kingston | 321 | – | 3.9 mi (near) |
| 08553 | Rocky Hill | 819 | $148k | 5.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.