Mount Arlington is a borough located in Morris County, New Jersey. Mount Arlington has a 2026 population of 6,019. Mount Arlington is currently growing at a rate of 0.33% annually and its population has increased by 2.05% since the most recent census, which recorded a population of 5,898 in 2020.
The median household income in Mount Arlington is $92,264 with a poverty rate of 4.87%. The median age in Mount Arlington is 48.1 years: 45.3 years for males, and 52.5 years for females. For every 100 females there are 77.4 males.
Data after 2023 is projected based on recent change
Overall: 48.1 years
Female: 52.5 years
Male: 45.3 years
There are 5,080 adults, (1,488 of whom are seniors) in Mount Arlington.
Female: 3,345 (56.4%)
Male: 2,590 (43.6%)
The racial composition of Mount Arlington includes 79.6% White, 5.54% Black or African American, 3.61% Asian, 3.03% other race, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,724 | 79.6% |
| Two or more races | 488 | 8.22% |
| Black or African American | 329 | 5.54% |
| Asian | 214 | 3.61% |
| Other race | 180 | 3.03% |
Mount Arlington 's average per capita income is $69,063. Household income levels show a median of $92,264. The poverty rate stands at 4.87%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $138,344 | - |
| Families | $128,333 | $132,717 |
| Households | $92,264 | $113,261 |
| Non Families | $72,145 | $91,761 |
Average Income
Median Household Income
Poverty Rate