Island County , Washington

Island County: County in the state of Washington, United States

Island County locator map
Location of Island County on Washington map.
Shoreline at Fort Ebey StatePark image
Shoreline at Fort Ebey StatePark


Island County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 78,506 and a population density of 59 people per km². After 9 years in 2019 county had an estimated population of 85,141 inhabitants. Its county seat is Coupeville. The county was created 168 years ago in 1852.


Island County is located at 48°12'30"N 122°40'9"W (48.2082000, -122.6692200). It has 5 neighbors: Jefferson County, Kitsap County, San Juan County, Skagit County and Snohomish County.

The largest city of Island County is Oak Harbor with a population of 23,565. Other cities include and Langley population 1,140.


Island County forecast: Rain likely before 11pm, then rain showers likely. Mostly cloudy, with a low around 46. West wind 5 to 12 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. more

Island County map

Island County Quick Facts

Population : 85,141 (2019)
Country : United States of America
State : Washington (United States)
Different from : County island
Area : 1340 km2
Water as percent of area : 60%
Land as percent of area : 40%
Named for : Whidbey Island
Altitude : 308 feet / 94 meters
Capital : Coupeville
Establishment : January 01, 1853
Time Zone : America/Los_Angeles
Local time : 21:18:59 (7th May 2021)
Density : 64 Pop. per km² as of 2019
Population growth : 7.79% (2010-2019)
Weather : 46℉ Light Rain Likely then Rain Showers Likely 7-days weather

Island County has 5 neighbors .

  • Coupeville


The population of Island County increased by 7.79% in 9 years.

Year Population % Change Method
2010 78,506 - census
2011 78,941 0.55% estimation process
2012 79,039 0.12% estimation process
2013 78,198 -1.08% estimation process
2014 78,690 0.63% estimation process
2015 80,022 1.66% estimation process
2016 81,692 2.04% estimation process
2017 83,250 1.87% estimation process
2018 84,227 1.16% estimation process
2019 85,141 1.07% estimation process

Ajlend, Ajlund, Comitatul Island, Comte d'Island, Comte dIsland, Comté d'Island, Comté dIsland, Condado de Island, Condado han Island, Contea di Island, Hrabstwo Island, Island, Island Kun, Island Kūn, Island konderria, Island megye, Kantono Island, Okrug Ajland, Quan Island, Quận Island, a'ilyanda ka'unti, ai lan xian, aillaendeu gun, airando jun, mqatʿt ayland, shhrstan ayslnd washyngtn, Айленд, Айлънд, Округ Ајланд, آئیلینڈ کاؤنٹی, جزیرہ کاؤنٹی، واشنگٹن, شهرستان ایسلند، واشینگتن, مقاطعة آيلاند, আইল্যান্ড কাউন্টি, アイランド郡, 艾兰县, 아일랜드 군

Island County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Island County.

City Name Population Title
Oak Harbor 23,565 City in Washington
Coupeville 1,972 Town in Washington (state), U.
Langley 1,140 City in British Columbia

Washington Other Counties (more counties)

County Name Population Title
Washington 7,614,893 State of the United States of America
King County 2,252,782 County in the state of Washington, United States
Pierce County 904,980 County in the state of Washington, United States
Snohomish County 822,083 County in the state of Washington, United States
Seattle 753,675 City in Washington, United States; county seat of King County
Spokane County 522,798 County in the state of Washington, United States
Clark County 488,241 County in Washington, United States
Thurston County 290,536 County in the state of Washington, United States
Kitsap County 271,473 County in the state of Washington, United States
Yakima County 250,873 County in the state of Washington, United States
Whatcom County 229,247 County in the state of Washington, United States
Spokane 222,081 County seat of Spokane County, Washington, United States
Tacoma 217,827 County seat of Pierce County, Washington, United States
Benton County 204,390 County in Arkansas, United States
Vancouver 184,463 City in Washington, United States and the largest suburb of Portland, Oregon
Bellevue 148,164 City in King County, Washington, United States
Shoreline at Fort Ebey StatePark image

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