Monmouth Junction

Population: 9,457
Median household income: $125,892
Median home value: $497,100

Monmouth Junction is a community in Middlesex County, New Jersey, home to 9,457 residents. Its median household income of $125,892 runs above the Middlesex County figure of $109,028.

Between 2019 and 2023, Monmouth Junction's population grew 225.4% from 2,906 to 9,457, while its median home value rose 14.6% from $433,800 to $497,100.

7.5% of residents live below the poverty line. Households average 2.65 people.

Demographics

ACS 2019–2023

Population: 9,457
Median age: 40.2 yrs
Median household income: $125,892
Median home value: $497,100
Median gross rent: $1,880
Housing units: 3,624
Homeownership rate: 63.4%
Bachelor's degree or higher: 72.9%
Unemployment rate: 4.3%

Trends

ACS 5-year · 2019–2023

Population

2,9069,457

Median household income

$150,500$125,892

Median home value

$433,800$497,100

Median gross rent

$2,356$1,880

Year	Population	Median household income	Median home value	Median gross rent
2019	2,906	$150,500	$433,800	$2,356
2020	8,911	$121,127	$442,200	$1,656
2021	9,728	$123,906	$441,800	$1,705
2022	9,750	$121,857	$478,700	$1,784
2023	9,457	$125,892	$497,100	$1,880

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.7%

5 to 1717.8%

18 to 247.7%

25 to 3412.1%

35 to 4415.8%

45 to 5416.9%

55 to 6414.2%

65 to 748.4%

75 and over2.3%

	Count	Share
Under 5	447	4.7%
5 to 17	1,683	17.8%
18 to 24	732	7.7%
25 to 34	1,149	12.1%
35 to 44	1,491	15.8%
45 to 54	1,597	16.9%
55 to 64	1,340	14.2%
65 to 74	797	8.4%
75 and over	221	2.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	2,671	28.2%
Black or African American	625	6.6%
American Indian & Alaska Native	0	0.0%
Asian	5,224	55.2%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	68	0.7%
Two or more races	256	2.7%
Hispanic or Latino (any race)	613	6.5%

Educational attainment (age 25+)

No high school diploma4.0%

High school graduate10.0%

Some college or associate's13.1%

Bachelor's degree38.6%

Graduate or professional degree34.3%

	Count	Share
No high school diploma	267	4.0%
High school graduate	658	10.0%
Some college or associate's	861	13.1%
Bachelor's degree	2,544	38.6%
Graduate or professional degree	2,265	34.3%

Commute to work

Mean travel time to work: 35 min

Drove alone66.2%

Carpooled3.9%

Public transit3.2%

Walked0.5%

Bicycle0.0%

Worked from home25.4%

Other means0.7%

How workers get to work

	Count	Share
Drove alone	3,656	66.2%
Carpooled	218	3.9%
Public transit	178	3.2%
Walked	28	0.5%
Bicycle	0	0.0%
Worked from home	1,405	25.4%
Other means	39	0.7%

Travel time

	Count	Share
Under 15 min	816	19.8%
15 to 29 min	1,263	30.7%
30 to 44 min	638	15.5%
45 to 59 min	631	15.3%
60+ min	771	18.7%

Households

Average household size: 2.65
Poverty rate: 7.5% (705 of 9,457)

	Count	Share
Family households	2,690	75.4%
Nonfamily households	877	24.6%

Housing

Median year structure built: 1992

Occupancy

	Count	Share
Occupied	3,567	98.4%
Vacant	57	1.6%

Tenure (of occupied units)

	Count	Share
Owner-occupied	2,261	63.4%
Renter-occupied	1,306	36.6%

1-unit, detached40.9%

1-unit, attached23.7%

2 to 4 units3.2%

5 to 19 units21.2%

20 or more units11.0%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	1,484	40.9%
1-unit, attached	858	23.7%
2 to 4 units	116	3.2%
5 to 19 units	767	21.2%
20 or more units	399	11.0%
Mobile home & other	0	0.0%

Geography

Place GEOID: 3447190
Type (LSAD): 57
Land area: 4.38 sq mi
Water area: 0.03 sq mi
Center point: 40.3761, -74.5579