Waltham is located in Hancock County, Maine. Waltham has a 2025 population of 352. Waltham is currently growing at a rate of 2.62% annually and its population has increased by 5.39% since the most recent census, which recorded a population of 334 in 2020.
The average household income in Waltham is $84,776 with a poverty rate of 20.16%. The median age in Waltham is 55.3 years: 60.5 years for males, and 53.8 years for females.
Data after 2023 is projected based on recent change
The racial composition of Waltham includes 96.9% White, and smaller percentages for Black or African American, Two or more races and multiracial populations.
White (96.9%)
Black or African American (1.8%)
Two or more races (1.3%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 375 | 96.9% |
| Black or African American | 7 | 1.81% |
| Two or more races | 5 | 1.29% |
Married
Widowed
Divorced
Separated
Never Married
Waltham's average per capita income is $41,389. Household income levels show a median of $70,500. The poverty rate stands at 20.16%.
Name | Median | Mean |
|---|---|---|
| Married Families | $77,500 | - |
| Families | $75,179 | $71,561 |
| Households | $70,500 | $84,776 |
| Non Families | $48,438 | $104,363 |
Average Income
Median Household Income
Poverty Rate