Township · New Jersey
Monroe Township, Middlesex County, New Jersey
Monroe Township, Middlesex County, township, in Middlesex County, New Jersey. Monroe Township, Middlesex County had 49,830 residents on July 1, 2025 by the Census Bureau's estimate, up 2.4% since 2020; the 2020 Census counted 48,594 and the ACS 2020-2024 5-year estimates put it at 49,032 (±28). GEOID 3402347280.
Residents, July 2025 estimate
49,830
Census Bureau estimate (no margin published)
2020 Census count: 48,594 · ACS 2020-2024: 49,032 ±28
Median household income
$107,892
±$10,732 (90% margin)
New Jersey: $103,556
Median home value
$540,900
±$22,783 (90% margin)
New Jersey: $454,400
Median gross rent
$2,031
±$182 (90% margin)
New Jersey: $1,720
Where is Monroe Township, Middlesex County and what county is it in?
Monroe Township, Middlesex County is a township in Middlesex County, New Jersey. It covers 41.9 square miles of land, 1,159 residents per square mile in 2020.
11 places lie inside Monroe Township (Middlesex County), the largest Rossmoor (CDP, 2,992 residents in 2020).
- Rossmoor CDP, 2,992 in 2020
- Clearbrook CDP, 2,909 in 2020
- Concordia CDP, 2,455 in 2020
- Whittingham CDP, 2,348 in 2020
- Monroe Manor CDP, 2,178 in 2020
- Forsgate CDP, 2,056 in 2020
- Regency at Monroe CDP, 2,036 in 2020
- Stonebridge CDP, 1,616 in 2020
- The Ponds CDP, 941 in 2020
- Renaissance at Monroe CDP, 637 in 2020
- Encore at Monroe CDP, 625 in 2020
Monroe Township, Middlesex County is in the New York-Newark-Jersey City, NY-NJ metropolitan statistical area, which takes in 22 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Monroe Township, Middlesex County, and is it growing?
The Census Bureau estimates that 49,830 people lived in Monroe Township, Middlesex County on July 1, 2025, up 2.4% since 2020, in line with New Jersey (+2.8%). The 2020 Census counted 48,594 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 49,032 (±28).
| Measure | Monroe Township, Middlesex County | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 49,032±28 | 871,290 | +4,726 |
| Households | 21,781±680 | 307,782 | +2,944 |
| Average household size | 2.23±0.07 | 2.75 | −0.10 |
| Housing units | 22,419±643 | 317,979 | +2,595 |
Monroe Township, Middlesex County's population since 2000
From 27,999 in 2000 to 49,830 in 2025: up 78.0%. The 2000, 2010 and 2020 figures are census counts, each for Monroe Township, Middlesex County as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Monroe Township, Middlesex County?
The median resident of Monroe Township, Middlesex County is 57.8 years old; 16.6% are under 18 and 39.6% are 65 or older. The largest group is non-Hispanic white residents at 62.3%, then non-Hispanic Asian residents at 27.0%. 26.6% of residents were born outside the United States.
| Measure | Monroe Township, Middlesex County | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 57.8±1.8 | 39.5 | no clear change |
| Under 18 years | 16.6%±1.2 pts | 21.5% | – |
| 65 years and over | 39.6%±1.9 pts | 16.1% | – |
| Male | 47.8%±1.3 pts | 49.7% | – |
| Hispanic or Latino (any race) | 5.9%±1.8 pts | 23.6% | no clear change |
| White alone, not Hispanic | 62.3%±2.3 pts | 37.5% | −8.7 pts |
| Black or African American alone, not Hispanic | 2.5%±0.7 pts | 9.7% | no clear change |
| Asian alone, not Hispanic | 27.0%±1.9 pts | 25.4% | +7.6 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.2 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.4%±0.7 pts | 2.9% | – |
| Some other race alone, not Hispanic | 0.7%±0.6 pts | 0.8% | – |
| Born outside the United States | 26.6%±2.1 pts | 35.4% | +4.1 pts |
| Speak a language other than English at home (age 5+) | 30.3%±2.4 pts | 47.4% | – |
| Civilian veterans (age 18+) | 5.9%±1.0 pts | 3.0% | – |
| With a disability | 14.9%±1.3 pts | 10.0% | – |
| No health insurance coverage | 1.1%±0.5 pts | 7.2% | −0.9 pts |
| High school graduate or higher (age 25+) | 96.0%±0.9 pts | 89.2% | – |
| Bachelor's degree or higher (age 25+) | 53.8%±2.3 pts | 45.6% | +6.9 pts |
| Graduate or professional degree (age 25+) | 23.6%±1.9 pts | 19.4% | – |
| Lived in the same house a year earlier | 95.0%±1.1 pts | 89.6% | – |
| Moved from another state in the past year | 1.1%±0.5 pts | 2.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Monroe Township, Middlesex County earn?
Half of Monroe Township, Middlesex County's 21,781 households earn less than $107,892 a year (±$10,732), against $111,549 in Middlesex County and $103,556 in New Jersey. In 2015-2019 it was $111,317 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.7% of residents live below the poverty line.
| Measure | Monroe Township, Middlesex County | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $107,892±$10,732 | $111,549 | no clear change |
| Mean household income | $156,147±$8,770 | $142,003 | – |
| Per capita income | $69,907±$3,790 | $50,601 | no clear change |
| People below the poverty line | 3.7%±0.8 pts | 8.6% | no clear change |
| Children under 18 below the poverty line | 1.0%±0.9 pts | 10.6% | – |
| Households receiving SNAP | 2.4%±0.9 pts | 7.9% | – |
| Households with a computer | 95.2%±1.6 pts | 96.5% | – |
| Households with a broadband subscription | 93.2%±1.8 pts | 94.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Monroe Township, Middlesex County?
Owners occupy 91.1% of Monroe Township, Middlesex County's occupied homes and renters 8.9%. The median owner-occupied home is valued at $540,900 by its owner (±$22,783). The median renter pays $2,031 a month including utilities, and 59.9% of renters pay 35% or more of their income on rent.
| Measure | Monroe Township, Middlesex County | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $540,900±$22,783 | $462,900 | +$78,282 |
| Median gross rent | $2,031±$182 | $1,871 | no clear change |
| Renters paying 35% or more of income on rent | 59.9%±15.6 pts | 38.8% | no clear change |
| Median monthly owner costs, with a mortgage | $3,064±$176 | $2,877 | – |
| Owner-occupied homes | 91.1%±1.9 pts | 63.6% | no clear change |
| Renter-occupied homes | 8.9%±1.9 pts | 36.4% | – |
| Housing units | 22,419±643 | 317,979 | +2,595 |
| Homeowner vacancy rate | 0.7%±0.6 pts | 0.4% | – |
| Rental vacancy rate | 0.7%±1.2 pts | 2.4% | – |
| Single-family detached homes | 63.0%±2.6 pts | 52.4% | – |
| Mobile homes | 0.0%±0.1 pts | 0.8% | – |
| Built 2020 or later | 1.3%±0.6 pts | 0.9% | – |
| Built 2010 to 2019 | 18.5%±2.2 pts | 6.6% | – |
| Built 1939 or earlier | 2.0%±0.9 pts | 10.4% | – |
| Households with no vehicle | 6.1%±1.5 pts | 8.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Monroe Township, Middlesex County building?
Builders took permits for 100 new housing units in Monroe Township, Middlesex County in 2025 (100 in single-family houses), 2.0 per 1,000 residents against 2.9 across New Jersey.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Monroe Township, Middlesex County work and get to work?
61.4% of Monroe Township, Middlesex County's workers drive alone and 27.5% work from home. The average trip to work takes 40.3 minutes. The unemployment rate in 2020-2024 averaged 5.3%.
| Measure | Monroe Township, Middlesex County | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 51.6%±2.2 pts | 67.2% | – |
| Unemployment rate | 5.3%±1.5 pts | 6.7% | no clear change |
| Drove alone to work | 61.4%±3.3 pts | 61.3% | – |
| Carpooled | 3.8%±1.2 pts | 8.1% | – |
| Public transportation | 5.4%±1.3 pts | 5.9% | – |
| Walked | 0.7%±0.4 pts | 2.9% | – |
| Worked from home | 27.5%±3.1 pts | 18.1% | +19.8 pts |
| Mean travel time to work | 40.3 min±2.0 | 31.2 min | −3.2 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Monroe Township, Middlesex County?
10 census tracts lie mostly in Monroe Township, Middlesex County (2020 census blocks). Their median household incomes run from $60,756 (Tract 82.06) to $236,667 (Tract 82.12).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 82.14Middlesex County | 10,419 | $175,532 |
| Tract 82.11Middlesex County | 5,894 | $195,559 |
| Tract 82.13Middlesex County | 5,358 | $134,365 |
| Tract 82.12Middlesex County | 4,820 | $236,667 |
| Tract 82.04Middlesex County | 4,588 | $68,844 |
| Tract 82.06Middlesex County | 3,877 | $60,756 |
| Tract 82.10Middlesex County | 3,830 | $189,320 |
| Tract 82.05Middlesex County | 3,708 | $64,950 |
| Tract 82.09Middlesex County | 3,541 | $143,135 |
| Tract 82.07Middlesex County | 2,997 | $78,107 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Monroe Township, Middlesex County) · Census block assignment files
How does Monroe Township, Middlesex County compare with other places in New Jersey?
By the Census Bureau's July 2025 estimates, Monroe Township, Middlesex County is the 160th-most populous of the 16,079 U.S. towns and townships that have one and the 23rd-most populous of 241 in New Jersey.
Monroe Township, Middlesex County ranks 428th of 771 places in New Jersey with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 23rd | 241 |
| Growth 2020-2025 (PEP) | 216th | 532 |
| Residents per square mile | 541st | 787 |
| Median household income | 428th | 771 |
| Per capita income | 200th | 785 |
| Median home value | 248th | 777 |
| Median gross rent | 214th | 701 |
| Poverty rate | 430th | 539 |
| Bachelor's degree or higher | 272nd | 780 |
| Median age | 52nd | 786 |
| Owner-occupied share | 149th | 777 |
| Work from home | 101st | 695 |
| Travel time to work | 46th | 787 |
Monroe Township, Middlesex County's figures with every place in New Jersey (CSV)
Every place in New Jersey, sortable · Compare Monroe Township, Middlesex County with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Monroe Township, Middlesex County?
7 of the 57 figures for Monroe Township, Middlesex County on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Monroe Township, Middlesex County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.