Mercer is located in Somerset County, Maine. Mercer has a 2025 population of 712 . Mercer is currently declining at a rate of 0% annually and its population has increased by 0.28% since the most recent census, which recorded a population of 710 in 2020.
The average household income in Mercer is $82,320 with a poverty rate of 16.02%. The median age in Mercer is 41.1 years: 41.4 years for males, and 41 years for females. For every 100 females there are 73.7 males.
Data after 2023 is projected based on recent change
The racial composition of Mercer includes 73.93% White, 7.56% other race, 6.17% Asian, and smaller percentages for and multiracial populations.
White (73.93%)
Two or more races (12.34%)
Other race (7.56%)
Asian (6.17%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 587 | 73.93% |
| Two or more races | 98 | 12.34% |
| Other race | 60 | 7.56% |
| Asian | 49 | 6.17% |
Married
Widowed
Divorced
Separated
Never Married
Mercer's average per capita income is $45,658. Household income levels show a median of $68,954. The poverty rate stands at 16.02%.
Name | Median | Mean |
|---|---|---|
| Married Families | $80,000 | - |
| Families | $69,362 | $81,807 |
| Households | $68,954 | $82,320 |
| Non Families | $40,833 | $64,896 |
Average Income
Median Household Income
Poverty Rate