The U.S. State of Oregon currently has 24 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated four combined statistical areas, eight metropolitan statistical areas, and 12 micropolitan statistical areas in Oregon.[1] As of 2025, the largest of these is the Portland–Vancouver–Salem, OR-WA CSA, anchored by Oregon's largest city, Portland and including its capital, Salem.

Statistical areas

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico.[2] 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 (CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population,[2] "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".[2] The OMB further divides a CBSA based on population into a metropolitan statistical area (MSA) for those with at least 50,000 people or a micropolitan statistical area (μSA) for those with 10,000 to 49,999 people.[2]

The OMB defines a combined statistical area (CSA) as two or more adjacent CBSAs where the employment interchange rate (percent commuting from A to B plus percent commuting from B to A) is at least 15%.[2] A primary statistical area (PSA) includes all CSAs and any CBSA that is not a constituent of a combined statistical area.

The 24 United States statistical areas and 36 counties of the State of Oregon[a]
Combined statistical area[1] 2025 population (est.)[3] Core-based statistical area[1] 2025 population (est.)[3] County 2025 population (est.)[3]
Portland–Vancouver–Salem, OR-WA CSA 3,333,552
2,673,879 (OR)		 Portland–Vancouver–Hillsboro, OR-WA MSA 2,542,282
1,997,494 (OR)		 Multnomah County, Oregon 795,391
Washington County, Oregon 611,708
Clark County, Washington 532,119
Clackamas County, Oregon 426,280
Yamhill County, Oregon 110,024
Columbia County, Oregon 54,091
Skamania County, Washington 12,669
Salem, OR MSA 445,814 Marion County, Oregon 355,777
Polk County, Oregon 90,037
Albany, OR MSA 132,843 Linn County, Oregon 132,843
Longview–Kelso, WA MSA 114,885 Cowlitz County, Washington 114,885
Corvallis, OR MSA 97,728 Benton County, Oregon 97,728
none Eugene–Springfield, OR MSA 381,584 Lane County, Oregon 381,584
Medford–Grants Pass, OR CSA 309,662 Medford, OR MSA 221,795 Jackson County, Oregon 221,795
Grants Pass, OR MSA 87,867 Josephine County, Oregon 87,867
none Bend, OR MSA 266,376 Deschutes County, Oregon 213,072
Crook County, Oregon 27,564
Jefferson County, Oregon 25,740
Roseburg, OR μSA 111,951 Douglas County, Oregon 111,951
Hermiston–Pendleton, OR μSA 93,721 Umatilla County, Oregon 81,119
Morrow County, Oregon 12,602
Klamath Falls, OR μSA 70,274 Klamath County, Oregon 70,274
Coos Bay–North Bend, OR μSA 63,992 Coos County, Oregon 63,992
Newport, OR μSA 50,636 Lincoln County, Oregon 50,636
Astoria, OR μSA 40,926 Clatsop County, Oregon 40,926
Boise City–Mountain Home–Ontario, ID-OR CSA 953,793
32,261 (OR)		 Boise City–Nampa, ID MSA 864,243 Ada County, Idaho 546,141
Canyon County, Idaho 275,123
Gem County, Idaho 21,773
Owyhee County, Idaho 12,661
Boise County, Idaho 8,545
Ontario, OR-ID μSA 60,085
32,261 (OR)		 Malheur County, Oregon 32,261
Payette County, Idaho 27,824
Mountain Home, ID μSA 29,465 Elmore County, Idaho 29,465
none The Dalles, OR μSA 26,310 Wasco County, Oregon 26,310
La Grande, OR μSA 25,900 Union County, Oregon 25,900
Hood River, OR μSA 23,720 Hood River County, Oregon 23,720
Brookings–Crescent City, OR-CA CSA 49,031
22,621 (OR)		 Crescent City, CA μSA 26,410 Del Norte County, California 26,410
Brookings, OR μSA 22,621 Curry County, Oregon 22,621
none Baker City, OR μSA 16,658 Baker County, Oregon 16,658
none Tillamook County, Oregon 27,384
Lake County, Oregon 8,187
Wallowa County, Oregon 7,595
Harney County, Oregon 7,380
Grant County, Oregon 7,075
Sherman County, Oregon 2,051
Gilliam County, Oregon 1,971
Wheeler County, Oregon 1,472
State of Oregon 4,273,586
The 20 core-based statistical areas of the State of Oregon[b]
2025 rank Core-based statistical area[1] Population
2025 estimate[3] Change 2020 Census[4] Change 2010 Census[5]
1 Portland–Vancouver–Hillsboro, OR-WA MSA (OR) 1,997,4940.00%1,997,512+11.62%1,789,580
2 Salem, OR MSA 445,814+2.88%433,353+10.91%390,738
3 Eugene–Springfield, OR MSA 381,584−0.36%382,971+8.89%351,715
4 Bend, OR MSA 266,376+7.63%247,493+23.48%200,431
5 Medford, OR MSA 221,795−0.66%223,259+9.87%203,206
6 Albany, OR MSA 132,843+3.29%128,610+10.23%116,672
7 Roseburg, OR μSA 111,951+0.67%111,201+3.28%107,667
8 Corvallis, OR MSA 97,728+2.67%95,184+11.22%85,579
9 Hermiston–Pendleton, OR μSA 93,721+1.58%92,261+5.97%87,062
10 Grants Pass, OR MSA 87,867−0.25%88,090+6.50%82,713
11 Klamath Falls, OR μSA 70,274+1.24%69,413+4.57%66,380
12 Coos Bay–North Bend, OR μSA 63,992−1.44%64,929+2.99%63,043
13 Newport, OR μSA 50,636+0.48%50,395+9.47%46,034
14 Astoria, OR μSA 40,926−0.36%41,072+10.89%37,039
15 Ontario, OR-ID μSA (OR) 32,261+2.19%31,571+0.82%31,313
16 The Dalles, OR μSA 26,310−1.35%26,670+5.78%25,213
17 La Grande, OR μSA 25,900−1.13%26,196+1.74%25,748
18 Hood River, OR μSA 23,720−1.07%23,977+7.30%22,346
19 Brookings, OR μSA 22,621−3.52%23,446+4.84%22,364
20 Baker City, OR μSA 16,658−0.06%16,668+3.31%16,134
Ontario, OR-ID μSA 60,085+2.10%58,850+9.11%53,936
Portland–Vancouver–Hillsboro, OR-WA MSA 2,542,282+1.17%2,512,859+12.89%2,226,009
The four combined statistical area of the State of Oregon[c]
2025 rank Combined statistical area[1] Population
2025 estimate[3] Change 2020 Census[4] Change 2010 Census[5]
1 Portland–Vancouver–Salem, OR-WA CSA (OR) 2,673,879+0.72%2,654,659+11.42%2,382,569
2 Medford–Grants Pass, OR CSA 309,662−0.54%311,349+8.89%285,919
3 Boise City–Mountain Home–Ontario, ID-OR CSA (OR) 32,261+2.19%31,571+0.82%31,313
4 Brookings–Crescent City, OR-CA CSA (OR) 22,621−3.52%23,446+4.84%22,364
Boise City–Mountain Home–Ontario, ID-OR CSA 953,793+12.17%850,341+21.91%697,535
Brookings–Crescent City, OR-CA CSA 49,031−4.22%51,189+0.42%50,974
Portland–Vancouver–Salem, OR-WA CSA 3,333,552+1.61%3,280,736+12.30%2,921,408

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. 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.
  3. 1 2 3 4 5 "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2025". United States Census Bureau, Population Division. July 2025. Retrieved June 24, 2026.
  4. 1 2 "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
  5. 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.

43°56′01″N 120°33′30″W / 43.9336°N 120.5583°W / 43.9336; -120.5583 (State of Oregon)

source: https://en.wikipedia.org/wiki/Oregon_statistical_areas