Arlington is a CDP located in Middlesex County, Massachusetts. Arlington has a 2025 population of 46,671 . Arlington is currently growing at a rate of 0.55% annually and its population has increased by 2.85% since the most recent census, which recorded a population of 45,379 in 2020.
The average household income in Arlington is $190,932 with a poverty rate of 5.4%. The median age in Arlington is 41.3 years: 39.7 years for males, and 42.8 years for females. For every 100 females there are 90.8 males.
Data after 2023 is projected based on recent change
The racial composition of Arlington includes 76.47% White, 12.1% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (76.47%)
Asian (12.1%)
Two or more races (7.06%)
Black or African American (2.53%)
Other race (1.68%)
Native American (0.13%)
Native Hawaiian or Pacific Islander (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 35,186 | 76.47% |
| Asian | 5,570 | 12.1% |
| Two or more races | 3,250 | 7.06% |
| Black or African American | 1,163 | 2.53% |
| Other race | 774 | 1.68% |
| Native American | 58 | 0.13% |
| Native Hawaiian or Pacific Islander | 14 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Arlington's average per capita income is $92,461. Household income levels show a median of $141,440. The poverty rate stands at 5.4%.
Name | Median | Mean |
|---|---|---|
| Married Families | $215,863 | - |
| Families | $188,629 | $241,587 |
| Households | $141,440 | $190,932 |
| Non Families | $82,411 | $113,473 |
Average Income
Median Household Income
Poverty Rate