• Welcome to the Mercer Island Chamber of Commerce

     

  • Community Profile

  • Population

    Population density   .   1,379 per square mile
    Population ......................................... 23,154
    Male ......................................... 48.7 percent
    Female ..................................... 51.3 percent
    Median age .................................... 45 years
     

    Education

    Bachelor’s degree or higher ..... 76% percent
     

    Households

    Households ......................................... 9,191
    Average household size .......... 2.58 persons
    Median family size ................... 3.03 percent
    Owner-occupied
       housing units ......................... 76.6 percent
    Renter-occupied housing units ..24.2 percent
    Married-couple families ............ 65.6 percent
    Families with children
       under 18 years ....................... 35.5 percent
    Householder living alone  .......... 22.1 percent
    Households with individuals
       under 18 years  ...................... 36.5 percent
    Households with individuals
       65 years and over .................. 31.7 percent
     

    Income

    Median household ........................ $151,904
    Per capita  .................................... $123,799
     

    Housing

    Median housing value ................ $1,001,405
     

    Taxes

    Typical rate ... $9.13/$1,000 assessed value
      

    Commutes

    Mean travel time to work ......... 21.2 minutes
     

    Climate

    Average winter temperature ................ 40° F
    Average summer temperature ............ 70° F
    Average yearly rainfall .................. 35 inches
       (half falls between October and January)
     

    Statistics & Facts

    • The land area of Mercer Island is 13.11 square miles.
    • Mercer Island has an elevation of 338 feet.
    • Mercer Island is positioned 47.56° north of the Equator and 122.23° west of the Prime Meridian.
    • Mercer Island is the only city in King County situated on an island.
    • Mercer Island is the most populated island in a lake in the United States.
    • Mercer Island is the only community in King County in which the boundary of the city and the school district are identical.
    • 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.
    • Nearly three quarters of Island residents are college-educated.
    • Mercer Island’s zip code, 98040, is one of the wealthiest in the state.
    • There are about 16,000 registered voters on the Island.
    • About 7,000 people are employed in jobs on the Island. 
    • The largest employers on the Island are Farmer’s Insurance New World Life, Mercer Island School District and the City of Mercer Island.

     

     

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