Middlesex vs South River

A side-by-side comparison of Middlesex and South River: population, income, housing, and more.

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

South River has the higher population (16,007 vs 14,518 in Middlesex). Middlesex has the higher median household income ($107,063 vs $101,853 in South River). Middlesex has the higher median home value ($414,600 vs $382,500 in South River).

Population, income & housing

	Middlesex	South River
Population	14,518	16,007
Median age	44.3 yrs	36.5 yrs
Median household income	$107,063	$101,853
Median home value	$414,600	$382,500
Median gross rent	$1,493	$1,599
Housing units	5,703	5,789
Homeownership rate	72.6%	65.7%
Bachelor's degree or higher	34.5%	31.1%
Unemployment rate	4.7%	8.9%

Trends (ACS 5-year, 2019–2023)

	Middlesex	South River
Population	13,662 → 14,518 (+6.3%)	16,001 → 16,007 (+0.0%)
Median household income	$75,460 → $107,063 (+41.9%)	$78,162 → $101,853 (+30.3%)
Median home value	$307,000 → $414,600 (+35.0%)	$299,600 → $382,500 (+27.7%)
Median gross rent	$1,416 → $1,493 (+5.4%)	$1,288 → $1,599 (+24.1%)

Middlesex

Population

13,66214,518

Median household income

$75,460$107,063

Median home value

$307,000$414,600

Median gross rent

$1,416$1,493

South River

Population

16,00116,007

Median household income

$78,162$101,853

Median home value

$299,600$382,500

Median gross rent

$1,288$1,599

Age & race/ethnicity

Age distribution (share)

	Middlesex	South River
Under 5	5.6%	7.5%
5 to 17	15.1%	18.3%
18 to 24	5.4%	6.0%
25 to 34	13.1%	15.2%
35 to 44	12.0%	14.8%
45 to 54	15.8%	11.1%
55 to 64	15.3%	13.5%
65 to 74	9.6%	6.7%
75 and over	8.1%	6.9%

Race & ethnicity (share)

	Middlesex	South River
White (non-Hispanic)	54.2%	53.4%
Black or African American	5.7%	10.4%
American Indian & Alaska Native	0.0%	0.0%
Asian	11.7%	4.1%
Native Hawaiian & Pacific Islander	0.0%	0.2%
Some other race	0.3%	2.3%
Two or more races	1.8%	2.9%
Hispanic or Latino	26.3%	26.7%

Educational attainment (age 25+)

Share of adults 25+

	Middlesex	South River
No high school diploma	9.1%	13.6%
High school graduate	31.6%	31.8%
Some college or associate's	24.8%	23.4%
Bachelor's degree	23.0%	19.7%
Graduate or professional degree	11.5%	11.5%

Commute to work

How workers get to work (share)

	Middlesex	South River
Drove alone	80.7%	72.4%
Carpooled	6.5%	10.9%
Public transit	1.6%	1.9%
Walked	0.3%	1.9%
Bicycle	0.0%	0.0%
Worked from home	9.1%	6.6%
Other means	1.8%	6.3%

Housing

Units in structure (share)

	Middlesex	South River
1-unit, detached	68.5%	75.5%
1-unit, attached	7.0%	1.5%
2 to 4 units	9.5%	10.1%
5 to 19 units	5.0%	8.8%
20 or more units	10.0%	4.2%
Mobile home & other	0.0%	0.0%

Poverty & households

	Middlesex	South River
Poverty rate	8.0%	11.3%
Average household size	2.60	2.87
Mean commute (minutes)	26	33
Median year structure built	1964	1958