Other national surveys. 1  In 2015, the National Survey on Drug Use and Health reported that 20% of youth aged 12 to 20 years drink alcohol and 13% reported binge drinking in the past 30 days.8.
Mercer Island, WA Population and Races. As of 2010-2014, the total population of Mercer Island is 23,636, which is 7.26% more than it was in 2000. The population growth rate is much lower than the state average rate of 17.05% and is lower than the national average rate of 11.61%.
Mercer Island is a city in King County, Washington, United States located on an island of the same name in the southern portion of Lake Washington. Mercer Island is in the Seattle Metropolitan Area, with Seattle located to its west and Bellevue located to its east.