Zip Code 08831
Jamesburg, New Jersey — Middlesex County
📍 ZIP code 08831 is in Jamesburg, Middlesex County, New Jersey.
ZIP code 08831 is located in Jamesburg, Middlesex County, New Jersey. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 54,608. The area code for ZIP code 08831 is 732.
Quick Answer
Zip code 08831 is in Jamesburg, New Jersey (Middlesex County). It has a population of 54,608, median household income of $108,741, and median home value of $489,700.
Population
54,608
Income
$108,741
Home Value
$489,700
Climate
87°F / 21°F
About Zip Code 08831
Zip code 08831 is located in Jamesburg, New Jersey, within Middlesex County. Home to approximately 54,608 residents, this area sits at an elevation of 113 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 732.
The median household income is $108,741 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $489,700, and the cost of living index is 155 (55% above the national average of 100).
Summers average a high of 87°F while winters drop to 21°F. The area receives about 47 in of rain and 24 in of snow annually. The zip code covers 50.3 square miles of land area and 0.3 square miles of water.
Key Statistics
54,608
$108,741
$489,700
Eastern (EST/EDT)
732
113 ft
50.3 sq mi
54.9
24,898
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Compare With Nearby Zip Codes
| Metric | 08831 | 08828 | 08810 | 08535 | 07726 | 08512 |
|---|---|---|---|---|---|---|
| City | Jamesburg, NJ | Helmetta, NJ | Dayton, NJ | Millstone Township, NJ | Manalapan, NJ | Cranbury, NJ |
| Population | 54,608 | 2,317 | 8,241 | 4,971 | 44,698 | 12,511 |
| Median Income | $108,741 | $104,143 | $141,308 | $195,278 | $145,625 | $115,255 |
| Home Value | $489,700 | $321,400 | $471,700 | $684,200 | $603,000 | $618,300 |
| Cost of Living | 155 | 121 | 173 | 240 | 199 | 191 |
| Median Age | 54.9 | 39.5 | 40.4 | 47.5 | 44.2 | 47.8 |
Cost of Living
100 = National Average. Jamesburg's cost of living is 55% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.5x
Demographics
Zip code 08831 has a population of 54,608 people with a median age of 54.9. There are 24,898 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Jamesburg (08831) population trend from 2010 to 2024
↑ 35.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
87°F
21°F
47 in
24 in
Jamesburg experiences warm summers with average highs around 87°F. Winters are cool with lows averaging 21°F. The area receives about 24 in of snow per year.
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Housing & Economy
Median Home Value
$489,700
Median Household Income
$108,741
With 24,898 housing units across 50.3 square miles, 08831 has a housing density of 495 units per square mile. The home price-to-income ratio is 4.5x.
Location & Geography
Latitude
40.3195°
Longitude
-74.4288°
Land Area
50.3 sq mi
Water Area
0.3 sq mi
Nearby Zip Codes
Zip codes closest to 08831 (Jamesburg, NJ) with distances:
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 08831's $108,741. A way to compare Jamesburg to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 08831 (Jamesburg, NJ). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Jamesburg, New Jersey?
Jamesburg, New Jersey uses zip code 08831.
What county is zip code 08831 in?
Zip code 08831 is located in Middlesex County, New Jersey.
What is the population of zip code 08831?
The population of zip code 08831 is 54,608 with a median age of 54.9.
Is 08831 in Jamesburg, New Jersey?
Yes, zip code 08831 is in Jamesburg, Middlesex County, New Jersey. The area code is 732.
Frequently Asked Questions
What city is zip code 08831 in?
Zip code 08831 is in Jamesburg, New Jersey. It is part of Middlesex County and uses the Eastern (EST/EDT) timezone.
What is zip code 08831?
Zip code 08831 is a U.S. postal code in Jamesburg, New Jersey (Middlesex County). It has a population of 54,608 and covers 50.3 square miles.
What is the population of zip code 08831?
The population of zip code 08831 (Jamesburg, NJ) is 54,608 with a median age of 54.9. There are approximately 24,898 housing units in this area.
What is the median income in zip code 08831?
The median household income in zip code 08831 (Jamesburg, NJ) is $108,741 per year. The cost of living index is 155 (100 = national average).
What is the average home price in zip code 08831?
The median home value in zip code 08831 (Jamesburg, NJ) is $489,700. The cost of living index is 155 compared to the national average of 100.
What county is zip code 08831 in?
Zip code 08831 is located in Middlesex County, New Jersey. The primary city is Jamesburg.
What is the area code for zip code 08831?
Zip code 08831 in Jamesburg, NJ uses area code 732. It is located in the Eastern (EST/EDT) timezone.
Is zip code 08831 a good place to live?
Zip code 08831 (Jamesburg, NJ) has a cost of living index of 155 (100 = national average), a median household income of $108,741, and median home values of $489,700. The median age is 54.9. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 08831?
The cost of living index for zip code 08831 (Jamesburg, NJ) is 155, where 100 represents the national average. This area is above the national average. Median home value: $489,700.
What schools serve zip code 08831?
Zip code 08831 in Jamesburg, New Jersey is served by the local school district of Middlesex County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.