Middlesex County vs Monmouth County

A side-by-side comparison of Middlesex County and Monmouth County: population, income, housing, and more.

Middlesex County and Monmouth County are counties in New Jersey. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Middlesex County has the higher population (861,535 vs 643,615 in Monmouth County). Monmouth County has the higher median household income ($122,727 vs $109,028 in Middlesex County). Monmouth County has the higher median home value ($566,500 vs $439,300 in Middlesex County).

Population, income & housing

	Middlesex County	Monmouth County
Population	861,535	643,615
Median age	39.4 yrs	43.2 yrs
Median household income	$109,028	$122,727
Median home value	$439,300	$566,500
Median gross rent	$1,810	$1,771
Housing units	316,633	269,728
Homeownership rate	63.5%	75.4%
Bachelor's degree or higher	45.1%	50.6%
Unemployment rate	6.4%	5.2%

Trends (ACS 5-year, 2019–2023)

	Middlesex County	Monmouth County
Population	825,920 → 861,535 (+4.3%)	621,659 → 643,615 (+3.5%)
Median household income	$89,533 → $109,028 (+21.8%)	$99,733 → $122,727 (+23.1%)
Median home value	$344,100 → $439,300 (+27.7%)	$421,900 → $566,500 (+34.3%)
Median gross rent	$1,469 → $1,810 (+23.2%)	$1,399 → $1,771 (+26.6%)

Middlesex County

Population

825,920861,535

Median household income

$89,533$109,028

Median home value

$344,100$439,300

Median gross rent

$1,469$1,810

Monmouth County

Population

621,659643,615

Median household income

$99,733$122,727

Median home value

$421,900$566,500

Median gross rent

$1,399$1,771

Age & race/ethnicity

Age distribution (share)

	Middlesex County	Monmouth County
Under 5	5.4%	5.0%
5 to 17	16.2%	16.1%
18 to 24	9.4%	8.2%
25 to 34	12.9%	11.0%
35 to 44	13.9%	11.8%
45 to 54	13.4%	13.7%
55 to 64	13.1%	15.8%
65 to 74	9.4%	11.0%
75 and over	6.4%	7.5%

Race & ethnicity (share)

	Middlesex County	Monmouth County
White (non-Hispanic)	38.8%	72.1%
Black or African American	9.6%	5.9%
American Indian & Alaska Native	0.1%	0.0%
Asian	25.0%	5.3%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.7%	0.7%
Two or more races	2.9%	3.3%
Hispanic or Latino	23.0%	12.7%

Educational attainment (age 25+)

Share of adults 25+

	Middlesex County	Monmouth County
No high school diploma	10.7%	5.8%
High school graduate	23.4%	21.4%
Some college or associate's	20.8%	22.2%
Bachelor's degree	26.1%	30.9%
Graduate or professional degree	19.0%	19.7%

Commute to work

How workers get to work (share)

	Middlesex County	Monmouth County
Drove alone	63.1%	66.8%
Carpooled	8.2%	7.2%
Public transit	6.3%	5.5%
Walked	2.8%	1.5%
Bicycle	0.3%	0.5%
Worked from home	16.1%	16.8%
Other means	3.1%	1.7%

Housing

Units in structure (share)

	Middlesex County	Monmouth County
1-unit, detached	52.6%	66.1%
1-unit, attached	11.1%	9.5%
2 to 4 units	11.6%	6.4%
5 to 19 units	14.2%	7.8%
20 or more units	9.5%	9.1%
Mobile home & other	0.9%	1.1%

Poverty & households

	Middlesex County	Monmouth County
Poverty rate	8.5%	6.4%
Average household size	2.74	2.55
Mean commute (minutes)	32	33
Median year structure built	1973	1975