Mountain Lakes is a borough located in Morris County, New Jersey. Mountain Lakes has a 2025 population of 4,689 . Mountain Lakes is currently growing at a rate of 0.97% annually and its population has increased by 5.09% since the most recent census, which recorded a population of 4,462 in 2020.
The average household income in Mountain Lakes is $327,881 with a poverty rate of 1.32%. The median age in Mountain Lakes is 43.6 years: 36.1 years for males, and 45.1 years for females. For every 100 females there are 118.3 males.
Data after 2023 is projected based on recent change
The racial composition of Mountain Lakes includes 79.67% White, 13.25% Asian, and smaller percentages for other race and multiracial populations.
White (79.67%)
Asian (13.25%)
Two or more races (5.64%)
Other race (1.43%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,613 | 79.67% |
| Asian | 601 | 13.25% |
| Two or more races | 256 | 5.64% |
| Other race | 65 | 1.43% |
Married
Widowed
Divorced
Separated
Never Married
Mountain Lakes' average per capita income is $134,864. Household income levels show a median of $250,001. The poverty rate stands at 1.32%.
Name | Median | Mean |
|---|---|---|
| Households | $250,001 | $327,881 |
| Families | $250,001 | $344,092 |
| Married Families | $250,001 | - |
| Non Families | $124,125 | $220,682 |
Average Income
Median Household Income
Poverty Rate