2026 Competitiveness Redbook | Page 70

Population and Change in Population by County( April 2024 – April 2025)
TABLE 59
Rank
2025
2024 % Change
Rank
1 King
2,411,700
2,378,100
1.4 %
2
2 Pierce
959,900
952,600
0.8 %
12
3 Snohomish
873,800
867,100
0.8 %
11
4 Spokane
566,000
559,400
1.2 %
3
5 Clark
542,400
536,300
1.1 %
4
6 Thurston
309,100
307,000
0.7 %
17
7 Kitsap
288,900
286,100
1.0 %
6
8 Yakima
264,650
263,200
0.6 %
22
9 Whatcom
240,500
238,000
1.1 %
5
10 Benton
219,625
217,850
0.8 %
10
11 Skagit
134,600
133,300
1.0 %
7
12 Cowlitz
114,500
113,900
0.5 %
23
13 Grant
106,250
105,300
0.9 %
9
14 Franklin
103,250
102,300
0.9 %
8
15 Island
88,700
88,650
0.1 %
33
16 Lewis
85,550
84,950
0.7 %
16
17 Chelan
82,900
82,300
0.7 %
13
18 Clallam
78,650
78,550
0.1 %
31
19 Grays Harbor
77,750
77,400
0.5 %
26
20 Mason
67,800
67,475
0.5 %
24
21 Walla Walla
63,800
63,375
0.7 %
18
22 Whitman
49,450
48,750
1.4 %
1
23 Kittitas
48,950
48,600
0.7 %
15
24 Stevens
47,800
47,650
0.3 %
30
25 Douglas
45,450
45,150
0.7 %
19
26 Okanogan
43,400
43,200
0.5 %
25
27 Jefferson
33,825
33,700
0.4 %
28
28 Pacific
23,950
23,950
0.0 %
34
29 Klickitat
23,600
23,450
0.6 %
20
30 Asotin
22,750
22,725
0.1 %
32
31 Adams
21,550
21,475
0.3 %
29
32 San Juan
18,550
18,475
0.4 %
27
33 Pend Oreille
13,950
13,850
0.7 %
14
34 Skamania
12,150
12,075
0.6 %
21
35 Lincoln
11,250
11,300
-0.4%
37
36 Ferry
7,350
7,350
0.0 %
34
37 Wahkiakum
4,550
4,550
0.0 %
34
38 Columbia
3,950
3,975
-0.6%
38
39 Garfield
2,300
2,325
-1.1%
39
Washington State
8,115,100
8,035,700
1.0 %
Source: Tax Foundation
Whitman grew at a faster rate than any other Washington county from April 2024 to April 2025, 1.4 %. The growth rate for the state’ s most populous county, King, ranked 2nd and exceeded that for the state overall.