From a total population of 6,721, Belfast has a median age of 44.7. The average age of males, in Belfast, is 44.3 while the average age of females is 45. When you compare this to median age of Maine, Belfast is 1.2 years older.
The median income of individuals, in Belfast, is $23,197 while the average household income is $34,205. When comparing the median income of people living in Belfast to the rest of Maine, the average income in Belfast is $4,135 less.