Mount Arlington, New Jersey
Borough in Morris County, New Jersey
| Census | Population |
|---|---|
| 2000 | 4,663 |
| 2010 | 5,050 |
| 2020 | 5,909 |
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, place level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 34, retrieved November 14, 2026.
| Measure | Mount Arlington | Morris County | New Jersey |
|---|---|---|---|
| Population | 5,901 | 510,375 | 9,267,014 |
| Median household income | $99,511 | $134,929 | $101,050 |
| Median age | 45.7 | 42.7 | 40.1 |
| Median home value | $393,400 | $557,000 | $427,600 |
| Bachelor’s degree or higher | 48.8% | 57.2% | 42.9% |
| Foreign-born residents | 13.7% | 19.6% | 23.5% |
| Owner-occupied homes | 71.7% | 73.9% | 63.7% |
| Mean commute to work | 37.2 minutes | 30.1 minutes | 30.9 minutes |
Source: American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.
Median household income $99,511 · 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, place level, state 34, retrieved November 14, 2026.
- Owner occupied
- 1,899 units
- Renter occupied
- 749 units
- Vacancy rate
- 12.3%
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, place level, state 34, retrieved November 14, 2026.
| School | Type | Grades | District |
|---|---|---|---|
| Edith M. Decker Elementary School | Public | Pre-K–2 | Mount Arlington Public School District |
| Mount Arlington Public School | Public | 3–8 | Mount Arlington Public School District |
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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Nearby towns
- LandingCensus designated place
- Lower Berkshire ValleyCensus designated place
- Roxbury TownshipTownship
- HopatcongBorough
- Port MorrisCensus designated place
- LedgewoodCensus designated place
- KenvilCensus designated place
- Lake HopatcongCensus designated place
- StanhopeBorough
- NetcongBorough
Other towns in Morris County
- Boonton TownshipTownship
- BoontonTown
- BrooksideCensus designated place
- Budd LakeCensus designated place
- ButlerBorough
- Cedar KnollsCensus designated place
- Chatham TownshipTownship
- ChathamBorough
- Chester TownshipTownship
- ChesterBorough
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- Type
- Borough
- County
- Morris County
- Land area
- 2.14 sq mi
- Water area
- 0.66 sq mi
- Population
- 5,979 (2024 estimate)
- Households
- 2,648
- Median age
- 45.7
- Median household income
- $99,511
- Median home value
- $393,400
- Median gross rent
- $2,309
- Owner-occupied homes
- 71.7%
- Bachelor’s degree or higher
- 48.8%
- Foreign-born residents
- 13.7%
- Mean commute to work
- 37.2 minutes
- Census GEOID
- 3448690
Sources: Census Gazetteer 2025: places, 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, place level, state 34, retrieved November 14, 2026.
- ZIP codes
- 07850, 07856
- Metro area
- New York-Newark-Jersey City, NY-NJ
Sources: Census 2020 ZCTA relationship file: ZCTAs to places, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.