ZIP code 08831: Monroe Township, NJ
08831 is a ZIP code in Monroe Township, New Jersey, mainly in Middlesex County, part of the New York-Newark-Jersey City, NY-NJ metro area. About 55,658 people live here.
- Population
- 55,658
- Median household income
- $109,042
- Typical home value
- $603,700+1.8% in 12 months
- Median rent
- $2,014gross, per month
- Median age
- 54.8
- Homeowners
- 89.6%of occupied homes
Shaded: ZIP code 08831's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 08831 details
| City | Monroe Township |
|---|---|
| State | New Jersey |
| County | Middlesex County |
| Metro area | New York-Newark-Jersey City, NY-NJ |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 51.3 sq mi, plus 0.5 sq mi of water |
| Population density | 1,085 people per sq mi |
| Bachelor's degree or higher | 51.8% of adults 25+ |
| Average commute | 37.9 minutes |
| Center coordinates | 40.33434, -74.43250 |
Median rent in 08831 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $1,741/mo |
| 2 bedrooms | $2,045/mo |
| 3 bedrooms | $2,399/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 08831
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 08828 | Helmetta, NJ | 3.1 mi | 2,459 |
| 08810 | Dayton, NJ | 3.9 mi | 7,952 |
| 08884 | Spotswood, NJ | 4.6 mi | 8,187 |
| 08512 | Cranbury, NJ | 4.9 mi | 12,928 |
| 07726 | Englishtown, NJ | 5.8 mi | 44,764 |
| 07763 | Tennent, NJ | 6.4 mi | — |
| 08816 | East Brunswick, NJ | 6.6 mi | 49,360 |
| 08862 | Perth Amboy, NJ | 6.7 mi | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 08831?
A typical home in ZIP code 08831 is worth about $603,700 (Zillow Home Value Index). The median household here earns $109,042 a year. See what buying here would cost per month, with New Jersey average taxes and insurance filled in.
Monthly payment for a $603,700 homeWhat can a $109,042 income afford?Rental property numbers
About ZIP code 08831
What city is ZIP code 08831?
ZIP code 08831 is in Monroe Township, NJ, in Middlesex County.
What county is ZIP code 08831 in?
08831 is mainly in Middlesex County, New Jersey.
What is the population of ZIP code 08831?
About 55,658 people live in ZIP code 08831, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 08831 in?
08831 is in Eastern Time (UTC−5). It observes daylight saving time.