Cumberland County's estimated 2026 population is 319,779 with a growth rate of 0.81% in the past year according to the most recent United States census data. Cumberland County is the largest county in Maine. The 2010 population was 281,481 and has seen a growth of 13.61% since that time.
Data after 2023 is projected based on recent change
Overall: 42.2 years
Female: 43.6 years
Male: 41.1 years
There are 253,121 adults, (62,956 of whom are seniors) in Cumberland County.
Female: 158,290 (51.3%)
Male: 150,537 (48.7%)
The racial composition of Cumberland County includes 86.21% White, 3.46% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 266,236 | 86.21% |
| Two or more races | 21,778 | 7.05% |
| Black or African American | 10,699 | 3.46% |
| Asian | 6,792 | 2.2% |
| Other race | 2,682 | 0.87% |
| Native American | 524 | 0.17% |
| Native Hawaiian or Pacific Islander | 116 | 0.04% |
Cumberland County's average per capita income is $59,821. Household income levels show a median of $95,677. The poverty rate stands at 7.35%.
Name | Median | Mean |
|---|---|---|
| Married Families | $140,566 | $178,072 |
| Families | $124,273 | $161,242 |
| Households | $95,677 | $128,060 |
| Non Families | $56,036 | $75,294 |
Average Income
Median Household Income
Poverty Rate
