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Whatcom County, WA Demographics

Whatcom County, WA is the 9th most populous of 39 counties in Washington, with 226,847 residents across 2,108 square miles. That is about 108 people per square mile.

At the 2020 census

Population 226,847
Land area 2,108 sq mi
Density 108 / sq mi

Data: 2020 Census · American Community Survey 2024

How Whatcom County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Whatcom County, WA

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Whatcom County, WA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Whatcom County, WA

Name Population Sq mi Per sq mi
Census Tract 10 8,065 1.0 8,377
Census Tract 103.03 7,639 8.8 866
Census Tract 103.01 7,434 35.9 207
Census Tract 1.02 7,271 7.3 991
Census Tract 106 7,057 19.2 368
Census Tract 8.04 7,017 4.3 1,635
Census Tract 7 6,881 1.2 5,632
Census Tract 8.03 6,859 1.8 3,832
Census Tract 107.01 6,594 33.0 200
Census Tract 9.02 6,594 6.4 1,036
Census Tract 105.03 5,977 9.5 626
Census Tract 5.01 5,393 1.0 5,525
Census Tract 102.02 5,348 39.1 137
Census Tract 8.05 5,306 10.3 513
Census Tract 105.05 5,299 6.2 861
Census Tract 103.02 5,111 1.6 3,108
Census Tract 3.01 4,884 1.6 3,109
Census Tract 9.03 4,867 1.2 4,048
Census Tract 107.02 4,782 22.6 212
Census Tract 2.01 4,273 8.8 484
Census Tract 11.01 4,223 1.7 2,550
Census Tract 104.09 4,001 1.5 2,699
Census Tract 2.03 3,914 2.9 1,352
Census Tract 104.05 3,879 5.5 707
Census Tract 101.02 3,851 55.2 70
Census Tract 12.02 3,842 22.2 173
Census Tract 2.02 3,759 4.8 776
Census Tract 102.01 3,734 30.9 121
Census Tract 9400.02 3,723 12.9 289
Census Tract 12.04 3,710 0.6 5,787
Census Tract 105.06 3,710 1.4 2,672
Census Tract 104.11 3,632 3.6 998
Census Tract 1.01 3,616 26.2 138
Census Tract 104.07 3,487 19.4 180
Census Tract 4.02 3,382 0.7 4,656
Census Tract 105.04 3,370 22.3 151
Census Tract 4.01 3,321 1.1 2,964
Census Tract 3.02 3,073 0.9 3,557
Census Tract 12.03 3,030 0.3 9,690
Census Tract 5.02 2,981 0.5 5,581
Census Tract 9.04 2,942 0.8 3,610
Census Tract 104.08 2,908 19.8 147
Census Tract 8.07 2,877 32.6 88
Census Tract 8.09 2,739 2.5 1,111
Census Tract 11.02 2,680 0.5 4,986
Census Tract 8.08 2,568 1.6 1,617
Census Tract 104.10 2,440 9.4 260
Census Tract 101.01 2,434 119.1 20
Census Tract 101.03 2,304 1,461.0 2
Census Tract 9400.01 2,025 8.0 254
Census Tract 104.06 1,977 2.7 725
Census Tract 6 1,939 0.4 4,492
Census Tract 110 1,191 4.9 244
Census Tract 109 934 9.3 101

Related places

Metro areas containing Whatcom County

About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →