Washington (state) statistical areas

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The U.S. state of Washington has 29 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated six combined statistical areas, 13 metropolitan statistical areas, and ten micropolitan statistical areas in Washington. [1] As of 2023, the largest of these is the Seattle-Tacoma, WA CSA, anchored by Washington's largest city, Seattle and including its capital, Olympia.

Contents

The state historically had three metropolitan areas: Seattle, Spokane, and Tacoma. Seattle and Tacoma were eventually merged, while other metropolitan areas were added in the 1970s and 1980s. [2] There are 13 metropolitan areas that include areas in Washington; the largest is Seattle–Tacoma–Bellevue, which includes half of the state's population. [3]

Background

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico. [4] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population, [4] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core". [4] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people. [4]

The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%. [4] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

Table

The 29 United States statistical areas and 39 counties of the State of Washington [a]

Combined statistical area [1] 2023 population (est.) [5] Core-based statistical area [1] 2023 population (est.) [5] County2023 population (est.) [5] Metropolitan division2023 population (est.) [5]
Seattle-Tacoma, WA CSA 4,993,725 Seattle-Tacoma-Bellevue, WA MSA 4,044,837 King County, Washington 2,271,380Seattle-Bellevue-Kent, WA MD2,271,380
Pierce County, Washington 928,696Tacoma-Lakewood, WA MD928,696
Snohomish County, Washington 844,761Everett, WA MD844,761
Olympia-Lacey-Tumwater, WA MSA 299,003 Thurston County, Washington 299,003none
Bremerton-Silverdale-Port Orchard, WA MSA 277,658 Kitsap County, Washington 277,658
Mount Vernon-Anacortes, WA MSA 131,417 Skagit County, Washington 131,417
Oak Harbor, WA μSA 86,267 Island County, Washington 86,267
Centralia, WA μSA 86,154 Lewis County, Washington 86,154
Shelton, WA μSA 68,389 Mason County, Washington 68,389
Portland-Vancouver-Salem, OR-WA CSA 3,286,669
646,654 (WA)		 Portland-Vancouver-Hillsboro, OR-WA MSA 2,508,050
533,790 (WA)		 Multnomah County, Oregon 789,698
Washington County, Oregon 598,865
Clark County, Washington 521,150
Clackamas County, Oregon 423,173
Yamhill County, Oregon 108,644
Columbia County, Oregon 53,880
Skamania County, Washington 12,640
Salem, OR MSA 436,546
 Marion County, Oregon 346,741
Polk County, Oregon 89,805
Albany, OR MSA 131,496
 Linn County, Oregon 131,496
Longview-Kelso, WA MSA 112,864 Cowlitz County, Washington 112,864
Corvallis, OR MSA 97,713
 Benton County, Oregon 97,713
Spokane-Spokane Valley-Coeur d'Alene, WA-ID CSA 785,302
600,292		 Spokane-Spokane Valley, WA MSA 600,292 Spokane County, Washington 551,455
Stevens County, Washington 48,837
Coeur d'Alene, ID MSA 185,010 Kootenai County, Idaho 185,010
Kennewick-Richland-Walla Walla, WA CSA 375,821 Kennewick-Richland, WA MSA 314,253 Benton County, Washington 215,219
Franklin County, Washington 99,034
Walla Walla, WA MSA 61,568 Walla Walla County, Washington 61,568
none Yakima, WA MSA 256,643 Yakima County, Washington 256,643
Bellingham, WA MSA 231,919 Whatcom County, Washington 231,919
Wenatchee–East Wenatchee, WA MSA 124,795 Chelan County, Washington 79,997
Douglas County, Washington 44,798
Moses Lake-Othello, WA CSA 123,498 Moses Lake, WA μSA 102,678 Grant County, Washington 102,678
Othello, WA μSA 20,820 Adams County, Washington 20,820
none Port Angeles, WA μSA 77,616 Clallam County, Washington 77,616
Aberdeen, WA μSA 77,290 Grays Harbor County, Washington 77,290
Pullman-Moscow, WA-ID CSA 89,313
48,012 (WA)		 Pullman, WA μSA 48,012 Whitman County, Washington 48,012
Moscow, ID μSA 41,301 Latah County, Idaho 41,301
none Ellensburg, WA μSA 45,508 Kittitas County, Washington 45,508
Port Townsend, WA μSA 33,714 Jefferson County, Washington 33,714
Lewiston, ID-WA MSA 65,536
22,549 (WA)		 Nez Perce County, Idaho 42,987
Asotin County, Washington 22,549
none Okanogan County, Washington 43,712
Pacific County, Washington 24,200
Klickitat County, Washington 23,589
San Juan County, Washington 18,566
Pend Oreille County, Washington 14,361
Lincoln County, Washington 11,738
Ferry County, Washington 7,497
Wahkiakum County, Washington 4,765
Columbia County, Washington 4,053
Garfield County, Washington 2,363
State of Washington 7,812,880

Core-based statistical areas

The following table provides the in-state population ranking of each CBSA along with its rate of population change over time.

The 23 core-based statistical areas of the State of Washington [b]

2023 rank Core-based statistical area [1] Population
2023 estimate [5] Change 2020 Census [6] Change 2010 Census [7]
1 Seattle-Tacoma-Bellevue, WA MSA 4,044,837+0.65%4,018,762+16.83%3,439,809
2 Spokane-Spokane Valley, WA MSA 600,292+2.48%585,784+13.80%514,752
3 Portland-Vancouver-Hillsboro, OR-WA MSA (WA)533,790+3.58%515,347+18.08%436,429
4 Kennewick-Richland, WA MSA 314,253+3.50%303,622+19.85%253,340
5 Olympia-Lacey-Tumwater, WA MSA 299,003+1.43%294,793+16.86%252,264
6 Bremerton-Silverdale-Port Orchard, WA MSA 277,658+0.74%275,611+9.75%251,133
7 Yakima, WA MSA 256,643−0.03%256,728+5.55%243,231
8 Bellingham, WA MSA 231,919+2.24%226,847+12.78%201,140
9 Mount Vernon-Anacortes, WA MSA 131,417+1.46%129,523+10.80%116,901
10 Wenatchee-East Wenatchee, WA MSA 124,795+2.28%122,012+10.04%110,884
11 Longview-Kelso, WA MSA 112,864+1.93%110,730+8.12%102,410
12 Moses Lake, WA μSA 102,678+3.59%99,123+11.22%89,120
13 Oak Harbor, WA μSA 86,267−0.68%86,857+10.64%78,506
14 Centralia, WA μSA 86,154+4.88%82,149+8.87%75,455
15 Port Angeles, WA μSA 77,616+0.60%77,155+8.05%71,404
16 Aberdeen, WA μSA 77,290+2.19%75,636+3.90%72,797
17 Shelton, WA μSA 68,389+4.05%65,726+8.28%60,699
18 Walla Walla, WA MSA 61,568−1.62%62,584+6.47%58,781
19 Pullman, WA μSA 48,012+0.08%47,973+7.14%44,776
20 Ellensburg, WA μSA 45,508+2.64%44,337+8.36%40,915
21 Port Townsend, WA μSA 33,714+2.23%32,977+10.39%29,872
22 Lewiston, ID-WA MSA (WA)22,549+1.18%22,285+3.06%21,623
23 Othello, WA μSA 20,820+1.00%20,613+10.07%18,728
Portland-Vancouver-Hillsboro, OR-WA MSA2,508,050−0.19%2,512,859+12.89%2,226,009
Lewiston, ID-WA MSA65,536+1.80%64,375+5.73%60,888

Combined statistical areas

The following table provides the in-state population ranking of each CSA along with its rate of population change over time.

The six combined statistical areas of the State of Washington [c]

2023 rank Combined statistical area [1] Population
2023 estimate [5] Change 2020 Census [6] Change 2010 Census [7]
1 Seattle-Tacoma, WA CSA 4,993,725+0.81%4,953,421+15.88%4,274,767
2 Portland-Vancouver-Salem, OR-WA CSA (WA)646,654+3.29%626,077+16.19%538,839
3 Spokane-Spokane Valley-Coeur d'Alene, WA-ID CSA 600,292+2.48%585,784+13.80%514,752
4 Kennewick-Richland-Walla Walla, WA CSA 375,821+2.63%366,206+17.33%312,121
5 Moses Lake-Othello, WA CSA 123,498+3.14%119,736+11.02%107,848
6 Pullman-Moscow, WA-ID CSA (WA)48,012+0.08%47,973+7.14%44,776
Portland-Vancouver-Salem, OR-WA CSA3,286,669+0.18%3,280,736+12.30%2,921,408
Pullman-Moscow, WA-ID CSA89,313+2.08%87,490+6.67%82,020
Spokane-Spokane Valley-Coeur d'Alene, WA-ID CSA785,302+3.72%757,146+15.91%653,246

See also

Notes

  1. ↑ An out-of-state area and its population are displayed in green.An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
  2. ↑ For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.
  3. ↑ For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

References

  1. 1 2 3 4 5 Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "OMB BULLETIN NO. 23-01" (PDF). Office of Management and Budget . Retrieved November 5, 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)
  2. ↑ "Three Puget Sound cities join state's other five census metropolitan areas". The News Tribune . Associated Press. December 2, 1981. p. B13. Retrieved March 4, 2024– via Newspapers.com.
  3. ↑ Balk, Gene (May 31, 2024). "WA's smaller metros have been growing faster than Seattle since 2020". The Seattle Times . Retrieved March 3, 2025.
  4. 1 2 3 4 5 "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
  5. 1 2 3 4 5 6 "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.
  6. 1 2 "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
  7. 1 2 "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

47°22′57″N120°26′50″W / 47.3826°N 120.4472°W / 47.3826; -120.4472 (State of Washington)

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