Belfast Real EstateBelfast is located in Maine. Belfast, Maine has a population of 6,890. Belfast is less family-centric than the surrounding county with 13.74% of the households containing married families with children. The county average for households married with children is 23.46%. The median household income in Belfast, Maine is $55,900. The median household income for the surrounding county is $59,880 compared to the national median of $69,021. The median age of people living in Belfast is 60.1 years. Belfast WeatherThe average high temperature in July is 77.1 degrees, with an average low temperature in January of 9.1 degrees. The average rainfall is approximately 47.8 inches per year, with 62.8 inches of snow per year. Belfast MapReal estate near BelfastNearby CitiesNearby Cities Homes for Sale |