Middlesex, NJ demographics:
population, income, and more

Total population
14,451
0.9% year-over-year change
Median household income
$105,000/yr
-1.9% year-over-year change
Housing units
5,722
1.7% year-over-year change

Middlesex population

How many people live in Middlesex

Middlesex is home to 14,451 residents, according to the most recent Census data. Gender-wise, 46.5% of Middlesex locals are male, and 53.5% are female.

Total population
14,451
0.9% year-over-year change
Gender ratio
Male
46.5%
6,720
Female
53.5%
7,731
Value Percent YoY change
Male 6,720 46.5% -0.6%
Female 7,731 53.5% 2.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Middlesex is 44, with the population distributed as follows: about 18.1% are children under 15, then 7.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 25% of the population, while another 29.4% fall into the 45 to 64 bracket. Finally, around 19.6% are 65 or older.

Median age
44.3
Age breakdown
Under 15
18.1%
15 to 24
7.8%
25 to 44
25%
45 to 64
29.4%
Over 65
19.6%
Value Percent YoY change
Under 15 2,621 18.1% 3.8%
15 to 24 1,130 7.8% -6.7%
25 to 44 3,616 25% 0.3%
45 to 64 4,246 29.4% -4.5%
Over 65 2,838 19.6% 11.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Middlesex, 70.4% of the population are US-born citizens, while 19.1% have gained naturalized citizenship. At the same time, 10.5% of residents are non-citizens. As for race, 59% of locals are Caucasian, 5.2% are African American and 13.8% have Asian roots. There’s also a share of 10.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
70.4%
Non-U.S.-born citizens
19.1%
Non-citizens
10.5%
Value Percent YoY change
U.S.-born citizens 10,169 70.4% -4.7%
Non-U.S.-born citizens 2,764 19.1% 18.4%
Non-citizens 1,518 10.5% 14.9%
Racial breakdown
White
59%
Black or African American
5.2%
American Indian and Alaska Native
0%
Asian
13.8%
Native Hawaiian and other Pacific Islander
0%
Two or more races
10.5%
Other
11.5%
Value Percent
White 8,519 59%
Black or African American 755 5.2%
Asian 2,001 13.8%
Two or more races 1,512 10.5%
Other 1,664 11.5%

Households in Middlesex

A peek inside Middlesex households

Middlesex has 5,642 households, with an average of 3 members in each. Of these, 72.9% are families, while the remaining 27.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
5,642
2.7% year-over-year change
Average people per household
3
Non-family households
1,530
Family households
4,112
Value Percent YoY change
Non-family households 1,530 27.1% 10.6%
Family households 4,112 72.9% 0.1%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Middlesex

The housing landscape of Middlesex

Middlesex's housing consists of 5,722 units, with 66.8% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 9.4% and offer a more compact, shared living style.

Housing units
5,722
1.7% year-over-year change
Housing types
Value Percent
1 unit, detached 3,822 66.8%
1 unit, attached 535 9.4%
2 units 360 6.3%
3 or 4 units 70 1.2%
5 to 9 units 117 2%
10 to 19 units 187 3.3%
20 to 49 units 53 0.9%
50 or more units 577 10.1%
Homes built since 2020
99
28.6% year-over-year change

The age of buildings in Middlesex

In Middlesex, the median construction year is 1965. About 5.6% of homes were built before the 1940s, with another 3.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 1.4% of homes were added from 2000 to 2009, 6.8% between 2010 and 2019, and 1.7% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 318 5.6% -30.9%
Built between 1940 and 1949 215 3.8% 50.4%
Built between 1950 and 1959 1,465 25.6% -2.1%
Built between 1960 and 1969 1,683 29.4% 4.1%
Built between 1970 and 1979 466 8.1% -5.5%
Built between 1980 and 1989 517 9% 10.2%
Built between 1990 and 1999 492 8.6% 9.1%
Built between 2000 and 2009 79 1.4% 43.6%
Built between 2010 and 2019 388 6.8% 6.3%
Built in 2020 or later 99 1.7% 28.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Middlesex occupancy rates

Out of the 5,642 occupied housing units in Middlesex, 73.9% are owner-occupied, while 26.1% are lived in by tenants. Meanwhile, 1.4% of all homes on the local market sit vacant.

Occupied housing units
5,642
2.7% year-over-year change
Occupancy breakdown
Renter occupied
1,471
Owner occupied
4,171
Value Percent YoY
change
Renter occupied 1,471 26.1% -2.3%
Owner occupied 4,171 73.9% 4.6%
Unoccupied housing units
1.4%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Middlesex housing costs

Housing costs in Middlesex come to a median of $2,088 per month, while tenants specifically pay a median gross rent of $1,416.

Median housing costs per month
$2,088/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Middlesex
$1,416/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Middlesex

Middlesex education at a glance

About 35.2% of the population in Middlesex went to high school, while 15.6% pursued college studies. Another 7.9% earned an associate degree and 25.6% hold a bachelor’s. Meanwhile, 11.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 507 4.4% 31.7%
High school diploma 4,024 35.2% -6.1%
College diploma 1,788 15.6% -4.4%
Associate degree 901 7.9% -2.1%
Bachelor's degree 2,923 25.6% 9.8%
Graduate degree 1,290 11.3% 4.4%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Middlesex

How much people earn in Middlesex

The average annual household income in Middlesex was $129,572 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -0.9% change from the previous year. At the same time, the median income stood at $105,000, reflecting a -1.9% shift over the same period.

Average household income in Middlesex
$129,572/year
-0.9% year-over-year change
Median household income in Middlesex
$105,000/year
-1.9% year-over-year change

Middlesex income by age

In Middlesex, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $110,219. Those with someone between 45 and 64 in charge, often well established professionally, earn $141,358 overall. Overall, 88.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $110,219 2.9%
45 - 64 $141,358 19.5%
Over 65 $76,948 -19.7%
Above poverty level
12,728
Below poverty level
1,636
Value Percent YoY
change
Above poverty level 12,728 88.6% -2.1%
Below poverty level 1,636 11.4% 43.5%

Average renter income in Middlesex

To get a better sense of what renters earn on average in Middlesex, their median household income was $49,452 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 34.4%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$49,452
Rent-to-income ratio
34.4%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Middlesex

Workforce and job types in Middlesex

The job market in Middlesex is powered by 7,587 working residents, spread across a range of industries and roles. 82.6% of the working population are employed in professional or administrative positions, while 17.4% are in hands-on or service-based jobs. Also, 5.1% run their own businesses, 73.2% are employed by private companies, and 14.7% work in the public sector.

Workforce demographics

Working population
7,587
-2.4% year-over-year change
White collar
6,269
Blue collar
1,318
Value Percent YoY change
White collar 6,269 82.6% -3.4%
Blue collar 1,318 17.4% 2.7%
Employer type
Self employees
5.1%
Private companies
73.2%
Governmental workers
14.7%
Not for profit companies
7%
Value Percent YoY change
Self employees 390 5.1% -19.2%
Private companies 5,551 73.2% -0.6%
Governmental workers 1,113 14.7% -8.1%
Not for profit companies 533 7% 7.2%
Unemployment rate
3.6%
-26.1% year-over-year change

Available workforce

The unemployment rate in Middlesex stands at 3.6%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Middlesex

How people get around in Middlesex

Commuting methods vary: 97.5% of residents travel by personal vehicle and 0.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 6,405 97.5% -3.4%
Railroad 119 1.8% -2.5%
Motorcycle 23 0.4% 21.1%
Walk 21 0.3% 5.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Middlesex by zipcode?

Zipcode Population Number of households Median income Average income
08846 14,645 5,718 $105,000 $130,198

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FAQs about Middlesex demographics 

What is the total population of Middlesex?

Middlesex has a total population of 14,451 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.9% compared to a year ago.

What is the gender ratio in Middlesex?

The gender ratio in Middlesex is as follows:
  • 46.5% males (6,720 residents)
  • 53.5% females (7,731 residents)

What is the median age in Middlesex?

The median age in Middlesex is 44.3.

What is the age distribution of the population in Middlesex?

The age distribution in Middlesex is as follows:
  • Under 15: 18.1% (2,621 residents)
  • Ages 15-24: 7.8% (1,130 residents)
  • Ages 25-44: 25% (3,616 residents)
  • Ages 45-64: 29.4% (4,246 residents)
  • Over 65: 19.6% (2,838 residents)

What is the racial and ethnic makeup of Middlesex?

The racial and ethnic makeup of Middlesex is as follows:
  • White: 59% (8,519 residents)
  • Black or African American: 5.2% (755 residents)
  • American Indian and Alaska Native: 0% ( residents)
  • Asian: 13.8% (2,001 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 10.5% (1,512 residents)
  • Other: 11.5% (1,664 residents)

What percentage of the population in Middlesex are U.S.-born citizens?

U.S.-born citizens represent 70.4% of the population in Middlesex.

How many housing units are there in Middlesex?

There are 5,722 housing units in Middlesex, reflecting a +1.7% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Middlesex and what is the average household size?

Middlesex has a total of 5,642 households, with an average of 3 people in each.

What is the median household income in Middlesex?

Middlesex has a median household income of $105,000, representing a -1.9% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Middlesex?

The employment rate is 96.4% in Middlesex, with a workforce of 7,587 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 82.6% (6,269 residents)
  • Blue-collar workers: 17.4% (1,318 residents)

Places of employment:
  • Self-employed: 5.1% (390 residents)
  • Private companies: 73.2% (5,551 residents)
  • Governmental workers: 14.7% (1,113 residents)
  • Not-for-profit companies: 7% (533 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025