How many people are vaccinated in your King County ZIP code? Here are the top, bottom 10 By Becca Savransky, SeattlePI On Mercer Island and in areas of Sammamish, people can expect the vast majority of those they see are vaccinated — close to 90% of people 16 and older in the 98075 and 98040 ZIP codes have received at least one dose of the COVID-19 vaccine. But in areas of the Industrial District and Pacific, that number is significantly lower. Less than 50% of people in the 98134 and 98047 ZIP codes have had a dose of the vaccine. In total in King County, 71.1% of people 16 and older have received at least one vaccine dose. The county last week surpassed the 70% threshold for people who have received a vaccine dose. So far, about 53.4% of residents 16 and older are fully vaccinated in the county. But, the discrepancies are significant across different neighborhoods of the county as officials continue to work to bridge those gaps and distribute the vaccines equitably.