Boothbay Harbor, ME has a population of 1,000 and is the 15,158th largest city in the United States. The population density is 1,180 per sq mi which is 3043% higher than the Maine average and 1203% higher than the national average. The median age in Boothbay Harbor is 56 which is approximately 28% higher than the Maine average of 44. In Boothbay Harbor, 62% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 55% of Boothbay Harbor residents were born in Maine, 42% were born out of state, 1% were born outside of the United States and 3% were foreign born.