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%.
The total general sales tax rate for Mercer Island is 9.5%. The majority of that amount (6.5%) goes to the State of Washington. The remainder is distributed to various local jurisdictions as detailed below. The City of Mercer Island receives only 0.85% on each taxable sale occuring on the Island. So, for every $100 spent on Mercer Island, the City receives $0.85. An additional 0.5% sales tax applies to food and beverages sold by restaurants and taverns to pay for the debt service on Safeco Field.