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 172 years ago in 1853.
County Snapshot
Whatcom County at a glance
Whatcom County currently has 9 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
9
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Washington counties
39
Open related pagesLargest city
BellinghamPopulation 93,955
Top linked places
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% |
| Latitude & Longitude | 48.8298,-121.8728 |
| Altitude | 2,779 feet / 847 meters |
| Capital | Bellingham |
| Establishment | January 01, 1854 |
| Time Zone | America/Los_Angeles |
| Local time | 16:57:21 (23rd April 2026) |
| Density | 36 Pop. per km² as of 2020 |
| Population growth | 12.93% (2010-2020) |
| Weather | 40℉ Chance Light Rain 7-days weather |
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 |
Weather
A chance of rain. Mostly cloudy, with a low around 40.
7-Day ForecastOfficial website of Whatcom County
Official Website- 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 |
People born in Whatcom County (2)
People born in Whatcom County, including actress Ann Tyrrell, politician J. A. Kellogg, .
More notable people
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. |