Castine is located in Hancock County, Maine. Castine has a 2025 population of 1,402 . Castine is currently growing at a rate of 3.01% annually and its population has increased by 6.45% since the most recent census, which recorded a population of 1,317 in 2020.
The average household income in Castine is $119,271 with a poverty rate of 9.34%. The median age in Castine is 21 years: 20.3 years for males, and 49.2 years for females. For every 100 females there are 171.0 males.
Data after 2023 is projected based on recent change
The racial composition of Castine includes 88.05% White, and smaller percentages for Black or African American, other race, Asian and multiracial populations.
White (88.05%)
Two or more races (8.92%)
Black or African American (1.88%)
Other race (0.98%)
Asian (0.16%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,076 | 88.05% |
| Two or more races | 109 | 8.92% |
| Black or African American | 23 | 1.88% |
| Other race | 12 | 0.98% |
| Asian | 2 | 0.16% |
Married
Widowed
Divorced
Separated
Never Married
Castine's average per capita income is $70,104. Household income levels show a median of $111,500. The poverty rate stands at 9.34%.
Name | Median | Mean |
|---|---|---|
| Married Families | $143,021 | - |
| Families | $120,000 | $124,499 |
| Households | $111,500 | $119,271 |
| Non Families | $80,833 | $104,100 |
Average Income
Median Household Income
Poverty Rate