1 Lands for Sale in Mercer Island

about Mercer Island

Mercer island is located in King county Washington with a geographic area of 6.4 square miles. The total population in Mercer island is 25,820 with 47.5% male and 52.5% female. Children under age 5 represent 4.0% of the population, under age 18 equal 23.6% of the population and over age 65 is 20.6% of the population. The median household income is $150,506, per capita income is $95,368. There are a total of 10,128 housing units with 66.9% owner occupied. Education includes 5.9% of residents that are high school graduates and 78.8% with a bachelor's degree or higher. The average temperature in Mercer island in the summer is 64 degrees, and in the winter 42 degrees.