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Monroe Township, Middlesex County, New Jersey

Township in Middlesex County, New Jersey

Population, 2000 to 2020+73.6%
20k30k40k50k2000: 27,99920002010: 39,13220102020: 48,594202027,99948,594
Population of Monroe Township at each census
CensusPopulation
200027,999
201039,132
202048,594

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, county subdivision level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county subdivision level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county subdivision level, state 34, retrieved November 14, 2026.

Monroe Township compared with its county and state
Monroe Township compared with its county and state, American Community Survey 2019-2023
MeasureMonroe TownshipMiddlesex CountyNew Jersey
Population48,299861,5359,267,014
Median household income$106,892$109,028$101,050
Median age57.339.440.1
Median home value$513,400$439,300$427,600
Bachelor’s degree or higher53.2%45.1%42.9%
Foreign-born residents25.0%34.7%23.5%
Owner-occupied homes90.9%63.5%63.7%
Mean commute to work42.1 minutes31.9 minutes30.9 minutes

Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

Household income in Monroe Township
Under $50k23.5%
$50k to $100k24.2%
$100k to $150k14.4%
$150k to $200k12.8%
$200k and over25.1%

Median household income $106,892 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

Housing tenure in Monroe Township
Owner occupied
19,710 units
Renter occupied
1,963 units
Vacancy rate
4.1%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

Public schools in Monroe Township10
Public schools in Monroe Township, NCES directory 2023–2024
SchoolTypeGradesDistrict
Applegarth Elementary SchoolPublic4–5Monroe Township School District
Barclay Brook SchoolPublicPre-K–2Monroe Township School District
Brookside Elementary SchoolPublic3–5Monroe Township School District
Mill LakePublicPre-K–3Monroe Township School District
Oak Tree Elementary SchoolPublicPre-K–3Monroe Township School District
Woodland SchoolPublic4–5Monroe Township School District
Monroe Township Middle SchoolPublic6–8Monroe Township School District
Monroe Township High SchoolPublic9–12Monroe Township School District
NEW JERSEY TRAINING SCHOOLAlternative8–12OFFICE OF EDUCATION JUVENILE JUSTICE COMMISSION
Academy Learning CenterSpecial educationPre-K–12Educational Services Commission of New Jersey

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Community

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Monroe Township at a glance
Type
Township
Land area
41.9 sq mi
Water area
0.24 sq mi
Population
50,157 (2024 estimate)
Households
21,673
Median age
57.3
Median household income
$106,892
Median home value
$513,400
Median gross rent
$1,882
Owner-occupied homes
90.9%
Bachelor’s degree or higher
53.2%
Foreign-born residents
25.0%
Mean commute to work
42.1 minutes
Census GEOID
3402347280

Sources: Census Gazetteer 2025: county subdivisions, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

ZIP codes and metro area
ZIP codes
08831
Metro area
New York-Newark-Jersey City, NY-NJ

Sources: Census 2020 ZCTA relationship file: ZCTAs to county subdivisions, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.