Middlesex

County in New Jersey

County

The population development of Middlesex.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Middlesex	County	671,780	750,162	809,858	863,201	890,119	→
New Jersey	State	7,730,188	8,414,350	8,791,894	9,289,014	9,500,851

Contents: Incorporated Places

The population development of the incorporated places in Middlesex.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	County	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Carteret	Borough	Middlesex	18,949	20,612	22,846	25,330	26,003	→
Dunellen	Borough	Middlesex	6,486	6,836	7,219	7,641	8,411	→
Helmetta	Borough	Middlesex	1,192	1,830	2,169	2,458	2,504	→
Highland Park	Borough	Middlesex	13,453	14,045	13,982	15,077	15,386	→
Jamesburg	Borough	Middlesex	5,469	5,760	5,860	5,749	5,869	→
Metuchen	Borough	Middlesex	12,824	12,801	13,586	15,073	15,470	→
Middlesex	Borough	Middlesex	13,091	13,723	13,635	14,635	14,874	→
Milltown	Borough	Middlesex	7,003	6,967	6,893	7,042	7,170	→
New Brunswick	City	Middlesex	41,498	48,600	54,500	55,256	57,487	→
Perth Amboy	City	Middlesex	41,900	47,309	50,827	55,437	56,939	→
Sayreville	Borough	Middlesex	36,572	40,452	42,775	45,337	47,165	→
South Amboy	City	Middlesex	7,677	7,931	8,572	9,400	10,549	→
South Plainfield	Borough	Middlesex	20,556	21,798	23,396	24,330	25,062	→
South River	Borough	Middlesex	13,591	15,214	16,054	16,120	16,392	→
Spotswood	Borough	Middlesex	8,266	7,877	8,260	8,148	8,306	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	422,554
Females	440,608

Age Groups (C 2020)
0-17 years	183,153
18-64 years	548,451
65+ years	131,558

Age Distribution (C 2020)
80+ years	31,878
70-79 years	56,096
60-69 years	97,748
50-59 years	116,321
40-49 years	114,769
30-39 years	118,345
20-29 years	117,583
10-19 years	115,310
0-9 years	95,112

Urbanization (C 2020)
Rural	8,429
Urban	854,733

»Race« (C 2020)
White	361,742
Black/African American	84,360
Indigenous	4,614
Asian	228,813
Pacific Islander	340
Some other	105,028
2 or more	78,265

Ethnicity (C 2020)
Hispanic or Latino	193,687
Other	669,475