Knox County's estimated 2026 population is 40,855 with a growth rate of -0.15% in the past year according to the most recent United States census data. Knox County is the 11th largest county in Maine. The 2010 population was 39,727 and has seen a growth of 2.84% since that time.
Data after 2023 is projected based on recent change
The racial composition of Knox County includes 94.66% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (94.66%)
Two or more races (3.69%)
Other race (0.65%)
Black or African American (0.37%)
Asian (0.35%)
Native American (0.25%)
Native Hawaiian or Pacific Islander (0.02%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 38,677 | 94.66% |
| Two or more races | 1,509 | 3.69% |
| Other race | 266 | 0.65% |
| Black or African American | 152 | 0.37% |
| Asian | 142 | 0.35% |
| Native American | 104 | 0.25% |
| Native Hawaiian or Pacific Islander | 10 | 0.02% |
Married
Widowed
Divorced
Separated
Never Married
Knox County's average per capita income is $41,197. Household income levels show a median of $71,903. The poverty rate stands at 8.76%.
Name | Median | Mean |
|---|---|---|
| Married Families | $98,949 | - |
| Families | $92,717 | $119,758 |
| Households | $71,903 | $95,678 |
| Non Families | $43,380 | $59,322 |
Average Income
Median Household Income
Poverty Rate
