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West county atlas

Oregon county map

Explore all 36 counties. Select a county to see its map, or download a copy for your next project.

2025 Census boundaries36 mapped unitsCapital: Salem
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Boundary map 100%
Labelled map of Oregon counties Baker CountyBenton CountyClackamas CountyClatsop CountyColumbia CountyCoos CountyCrook CountyCurry CountyDeschutes CountyDouglas CountyGilliam CountyGrant CountyHarney CountyHood River CountyJackson CountyJefferson CountyJosephine CountyKlamath CountyLake CountyLane CountyLincoln CountyLinn CountyMalheur CountyMarion CountyMorrow CountyMultnomah CountyPolk CountySherman CountyTillamook CountyUmatilla CountyUnion CountyWallowa CountyWasco CountyWashington CountyWheeler CountyYamhill County
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2025 U.S. Census boundaries. Zoom to reveal more names. Drag to pan when zoomed; use arrow keys, + and − with the map focused.

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SVG

SVG is editable vector artwork. PNG is a high-resolution image. PDF uses landscape Letter pages, with a separate key when needed.

Downloads contain the complete boundary map, independent of zoom. Crowded names use a numbered key. Numbered quiz maps use the county list / answer key (CSV). Boundary data (GeoJSON) · Reuse with source credit.

Roads, terrain & aerial imagery

Explore Oregon with a county boundary overlay. Choose a view to load the interactive map.

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Street names, terrain, or aerial photography with the county boundary in view.

Backgrounds load from OpenStreetMap or USGS only when selected. Imagery dates and detail vary by location.

Map scope: Use the boundary map for names and shapes, or the interactive background viewer for roads, terrain, and aerial imagery. County boundaries do not identify parcels or ZIP codes.

Oregon county geography overview

Oregon has 36 counties, which places it 34th among the 50 state and District of Columbia maps in this atlas when ordered by number of county-level units. Their combined 95,996.7 square miles of land place the state 10th by mapped land area.

The average county-level area is 2,667 square miles, while the median is 1,826 square miles. The median is often the better description of a typical unit because one or two very large areas can pull the average upward. The five largest units together account for about 41% of the state’s mapped land area.

36county-level units
1,826 sq mimedian land area
10,134.5 sq milargest unit
2%share of mapped area that is water

Largest and smallest Oregon counties

Harney County is the largest county-level unit by land area at 10,134.5 square miles. It represents about 11% of all mapped land in Oregon. At the other end of the range, Multnomah County has 431 square miles of land.

Largest by land area

  1. Harney County10,134.5 sq mi
  2. Malheur County9,887.7 sq mi
  3. Lake County8,138.6 sq mi
  4. Klamath County5,949.9 sq mi
  5. Douglas County5,035.8 sq mi

Smallest by land area

  1. Multnomah County431 sq mi
  2. Hood River County522.2 sq mi
  3. Columbia County658.7 sq mi
  4. Benton County675.2 sq mi
  5. Yamhill County715.9 sq mi

Rankings use land area rather than total area. This avoids making coastal or lake counties appear larger solely because their boundaries include extensive water.

Alphabetical list of Oregon counties

The table is alphabetical, so it works as a name and FIPS-code reference rather than an area ranking. Every identifier begins with the Oregon state FIPS prefix 41. Land and water figures are rounded to one decimal place.

36 county-level areas

Download county data / numbered map key (CSV)
No.NameFIPS codeLand areaWater area
1Baker County410013,068 sq mi20 sq mi
2Benton County41003675.2 sq mi3 sq mi
3Clackamas County410051,870.7 sq mi12.3 sq mi
4Clatsop County41007828.2 sq mi255.4 sq mi
5Columbia County41009658.7 sq mi30.3 sq mi
6Coos County410111,596.1 sq mi210.3 sq mi
7Crook County410132,978.9 sq mi8.1 sq mi
8Curry County410151,628.4 sq mi360.8 sq mi
9Deschutes County410173,017.6 sq mi36.6 sq mi
10Douglas County410195,035.8 sq mi97.2 sq mi
11Gilliam County410211,204.7 sq mi18.1 sq mi
12Grant County410234,527.8 sq mi0.7 sq mi
13Harney County4102510,134.5 sq mi93.2 sq mi
14Hood River County41027522.2 sq mi11.2 sq mi
15Jackson County410292,783.3 sq mi18.1 sq mi
16Jefferson County410311,781.7 sq mi10.1 sq mi
17Josephine County410331,638.6 sq mi2.2 sq mi
18Klamath County410355,949.9 sq mi187.3 sq mi
19Lake County410378,138.6 sq mi219.5 sq mi
20Lane County410394,554.1 sq mi168.4 sq mi
21Lincoln County41041981 sq mi213.6 sq mi
22Linn County410432,289.5 sq mi19.4 sq mi
23Malheur County410459,887.7 sq mi42.1 sq mi
24Marion County410471,180.8 sq mi10.2 sq mi
25Morrow County410492,030.5 sq mi17.1 sq mi
26Multnomah County41051431 sq mi34 sq mi
27Polk County41053740.9 sq mi3.2 sq mi
28Sherman County41055823.6 sq mi7.6 sq mi
29Tillamook County410571,103.2 sq mi229.2 sq mi
30Umatilla County410593,215.4 sq mi16.1 sq mi
31Union County410612,036.9 sq mi1.9 sq mi
32Wallowa County410633,145.9 sq mi5.5 sq mi
33Wasco County410652,381.1 sq mi13.8 sq mi
34Washington County41067724.3 sq mi2.4 sq mi
35Wheeler County410691,716 sq mi0.5 sq mi
36Yamhill County41071715.9 sq mi2.5 sq mi

How to read and use this map

County lines are administrative boundaries, not postal routes. A mailing address can use a city name associated with a neighboring area, and ZIP codes can cross county lines. When you need to identify a county for an address, confirm it with an official geocoder or local government source.

For classroom or planning use, download a PDF from the controls above. Labelled exports use numbered callouts for crowded areas; numbered quiz maps match the alphabetical county list. SVG files keep the boundary lines sharp at larger paper sizes.

Frequently asked questions

How many counties are in Oregon?

Oregon has 36 counties in the U.S. Census Bureau’s 2025 cartographic boundary file.

Can I print this Oregon county map?

Yes. Choose Download / print and select PDF for a landscape Letter page, PNG for an image, or SVG for editable vector artwork. Because the map is SVG, its boundary lines stay sharp when scaled.

What is the largest county in Oregon?

Harney County is the largest by land area in this dataset at 10,134.5 square miles. This is an area ranking, not a population ranking.

What is the smallest county in Oregon?

Multnomah County is the smallest by land area in this dataset at 431 square miles.

Are these legal survey boundaries?

No. This is a generalized reference map. Property, parcel, election, and legal boundary questions should be checked with the relevant state or local agency.

Map source

U.S. Census Bureau, 2025 Cartographic Boundary File, Counties, 1:5,000,000. Land and water area fields are supplied in the same file and converted from square meters to square miles. Accessed September 27, 2026.