Whatcom County, Washington

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

About

Whatcom County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 201,140 and a population density of 31 people per km². After 10 years in 2020 county had an estimated population of 231,016 inhabitants. Its county seat is Bellingham. The county was created 171 years ago in 1853.

Whatcom County locator map
Location of Whatcom County on Washington map.

Quick Facts about Whatcom County

Population : 231,016 (2020)
Country : United States of America
State : Washington (United States)
Area : 6485 km2
Water as percent of area : 16%
Land as percent of area : 84%
Altitude : 2,779 feet / 847 meters
Capital : Bellingham
Establishment : January 01, 1854
Time Zone : America/Los_Angeles
Local time : 00:42:19 (22nd February 2025)
Density : 36 Pop. per km² as of 2020
Population growth : 12.93% (2010-2020)
Whatcom County Courthouse - Bellingham Washington image
Whatcom County Courthouse - Bellingham Washington
Whatcom County Courthouse - Bellingham Washington image
Whatcom County Courthouse - Bellingham Washington image

Geography

Whatcom County is located at 48°49'47"N 121°52'22"W (48.8297500, -121.8728300). It has 3 neighbors: Okanogan County, San Juan County and Skagit County.

Whatcom County map

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The largest city of Whatcom County is Bellingham with a population of 93,955. Other cities include, Ferndale population 15,531, Lynden population 15,408, Blaine population 5,638 and Everson population 2,888. See all Whatcom County cities & populated places.

Whatcom County Populated Places

Cities, towns, neighborhoods & other populated places in Whatcom County.

City Name Population Title
Bellingham 93,955 The most populous city in Whatcom County, Washington.
Ferndale 15,531 City in Whatcom County, Washington, United States
Lynden 15,408 City in Washington, United States
Birch Bay 8,413 Census designated place
Sudden Valley 6,441 Census designated place
Blaine 5,638 City in Whatcom County, Washington, United States
Everson 2,888 Small city in Washington
Nooksack 1,659 Small city in Washington
Sumas 1,629 Small city in Washington

Whatcom County has 3 neighbours.

  • Bellingham

Demographics

The population of Whatcom County increased by 12.93% in 10 years.

Year Population % Change Method
2010 201,140 - census
2011 203,490 1.15% estimation process
2012 204,863 0.67% estimation process
2013 206,073 0.59% estimation process
2014 208,154 1% estimation process
2015 211,836 1.74% estimation process
2016 216,417 2.12% estimation process
2017 221,410 2.26% estimation process
2018 225,197 1.68% estimation process
2019 229,247 1.77% estimation process
2020 231,016 0.77% estimation process

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People born in Whatcom County (2)

People born in Whatcom County, including actress Ann Tyrrell, politician J. A. Kellogg, .

List

Washington Other Counties (more counties)

County Name Population Title
King County 2,274,315 County in the state of Washington, United States
Pierce County 913,890 County in the state of Washington, United States
Snohomish County 830,393 County in the state of Washington, United States
Seattle 769,714 The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.
Spokane County 528,225 County in the state of Washington, United States
Clark County 496,865 County in Washington, United States
Thurston County 294,074 County in the state of Washington, United States
Kitsap County 272,787 County in the state of Washington, United States
Yakima County 251,879 County in the state of Washington, United States
Spokane 222,050 The second most populous city in Washington.
Tacoma 219,945 The third most populous city in Washington.
Benton County 206,426 County in Arkansas, United States
Vancouver 186,192 The third most populous city in Washington.
Bellevue 148,073 The most populous city in Washington.
Skagit County 130,789 County in the state of Washington, United States
Kent 130,676 The fourth most populous city in King County, Washington.