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Mercer Island offers the seclusion, privacy and beauty of island living, with immediate access to both Seattle and the Eastside. Five miles long and two miles wide, Mercer Island is located in the middle of Lake Washington, connected to either shore by Interstate 90.

The island features the best school district in the Washington state—often the reason people move here. The community and the short commute to Microsoft and other nearby businesses are also a big draw.

The island has much to offer in terms of recreational activity with its 300-plus acres of parklands and open space. The island features quiet, wooded neighborhoods with views of Seattle, Bellevue, Mount Rainier, the Cascade and Olympic Mountains. Island parks feature ball fields, extensive bike trails and picnic areas. In addition, there are more than 50 miles of marked walking trails.

 

Community Profile

Population 22,036
Population over age 18 16,312
Population change from 1990 to 2000 +1,220
Housing units 8,806
Average household size 2.6 persons
Housing unit change from 1990 to 2000 +799
Sex and Age

Male 48.1 percent 18 years and over 74.0 percent
Female 51.9 percent 65 years and over 18.7 percent
Households

Households 8,437
Family households 74.4 percent
With children under 18 years 35.5 percent
Married-couple family 65.6 percent
With children under 18 years 30.2 percent
Household no husband present 6.7 percent
With children under 18 years 4.1 percent
Non-family households 25.6 percent
Householder living alone 22.1 percent
Householder 65 years and over 11.2 percent
Households with individuals under 18 years 36.5 percent
Households with individuals 65 years and over 31.7 percent
Owner-occupied housing units 80.5 percent
Renter-occupied housing units 19.5 percent
Climate

Average winter temperature 40 degrees F
Average summer temperature 70 degrees F
Average yearly rainfall (half falls between October & January) 35 inches
Statistics and Facts

  • The land area of Mercer Island is 6.2 square miles.
  • Mercer Island is positioned 47.56 degrees north of the equator and 122.23 degrees west of the prime meridian.
  • Mercer Island is the only city in King County situated on an island.
  • Mercer Island is the 50th largest city in the state of Washington.
  • Mercer Island has more than 50 miles of marked walking paths and trails.
  • The average sale price of a home on Mercer Island in June 2004 was $1,052,404; and the median price for a home sold in June 2004 was $878,255, according to the Northwest Multiple Listing Service.
Important Contacts

King County Elections (206) 296-1565
City of Mercer Island
www.ci.mercer-island.wa.us
(206) 236-5300
Mercer Island Chamber of Commerce
www.mercerislandchamber.org
(206) 232-3404
Mercer Island Fire Department (206) 236-3600
Mercer Island Library
www.kcls.org/MI/home.html
(206) 236-3537
Mercer Island Police Department (206) 236-3500
Mercer Island Reporter (local/weekly newspaper)
www.mi-reporter.com
(206) 232-1215
Mercer Island School District
www.misd.wednet.edu
(206) 236-3300
Metro bus service (206) 553-3000