Monticello is located in Aroostook County, Maine. Monticello has a 2025 population of 726 . Monticello is currently declining at a rate of -0.41% annually and its population has decreased by -0.95% since the most recent census, which recorded a population of 733 in 2020.
The average household income in Monticello is $65,262 with a poverty rate of 18.8%. The median age in Monticello is 53.6 years: 55.8 years for males, and 52.6 years for females. For every 100 females there are 89.2 males.
Data after 2023 is projected based on recent change
The racial composition of Monticello includes 89.43% White, and smaller percentages for Native American, Black or African American, Asian and multiracial populations.
White (89.43%)
Two or more races (6.46%)
Native American (2.64%)
Black or African American (0.73%)
Asian (0.73%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 609 | 89.43% |
| Two or more races | 44 | 6.46% |
| Native American | 18 | 2.64% |
| Black or African American | 5 | 0.73% |
| Asian | 5 | 0.73% |
Married
Widowed
Divorced
Separated
Never Married
Monticello's average per capita income is $45,441. Household income levels show a median of $56,771. The poverty rate stands at 18.8%.
Name | Median | Mean |
|---|---|---|
| Married Families | $63,750 | - |
| Families | $58,906 | $70,292 |
| Households | $56,771 | $65,262 |
| Non Families | $48,750 | $57,428 |
Average Income
Median Household Income
Poverty Rate