Borough in Morris County, New Jersey · 2.1 sq mi · 2,802 people per sq mi
About 6,000 people live in Mount Arlington. The typical household earns $92,264, and the median resident is 48.1 years old.
2026 projection
From 5,903 in 2020
Poverty rate 4.87%
Men 45.3 · Women 52.5
1900–2026
6,002
2026 projection
1.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1900–2026
6,002
2026 projection
1.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 6,002 | +17 | 0.28% |
|---|---|---|---|
| 2025 | 5,985 | +14 | 0.23% |
| 2024 | 5,971 | +2 | 0.03% |
| 2023 | 5,969 | +43 | 0.73% |
| 2022 | 5,926 | +3 | 0.05% |
| 2021 | 5,923 | +20 | 0.34% |
| 2020 | 5,903 | +55 | 0.94% |
| 2019 | 5,848 | -16 | 0.27% |
| 2018 | 5,864 | +60 | 1.03% |
| 2017 | 5,804 | +396 | 7.32% |
Showing 10 of 28 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 59 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 21 residents
47% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 47% | 56% | 40% |
| Never married | 31% | 31% | 32% |
| Divorced | 12% | 11% | 13% |
| Widowed | 9% | <1% | 15% |
| Separated | <1% | 2% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau