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%.
Average Monthly Rent for a 1-Bedroom Apartment: $2,514 (2016) *Note: Mercer is an international human resources company that offers financial advice, products and services. The highest cost-of-living city is listed as No.1, and the comparison cities are rated in descending order. Numbers are as of June 2016.