Description: Detailed large map of Oregon State, USA showing cities, towns, county formations, roads highway, US highways and State routes.
Borders and waters at a glance: the Pacific Ocean runs the entire length of the western edge. Up north, the long border with Washington follows the Columbia River from Clatsop County all the way east to Umatilla County. To the east, Oregon meets Idaho across the Snake River in Wallowa, Baker, and Malheur counties, and the southeast corner touches Nevada in Harney and Malheur counties. The long southern edge borders California from Curry County east to Klamath and Lake counties. Look at the map and you will find all 36 counties shaded in, with the Columbia, Willamette, Deschutes, and Snake rivers serving as the main lines to orient yourself by as they run through the state. Light corridor cues for I-5, I-84, I-82, US-97, and US-101 help place the four big anchors the map marks clearly: Portland in Multnomah County to the northwest, Salem in Marion County, Eugene in Lane County, and Bend out in Central Oregon's Deschutes County.
In Oregon's northwest corner, the map starts at the river mouth. Clatsop County lists Astoria as county seat, with Seaside, Gearhart, Warrenton, and Cannon Beach stepping south along the shore where the Columbia meets the Pacific. Inland and east, Columbia County shows St. Helens as seat, a slim county squeezed between the river and the Coast Range with Scappoose, Vernonia, Rainier, and Clatskanie labeled. Farther south down the coast, Tillamook County lists Tillamook as seat, with Rockaway Beach, Garibaldi, Bay City, Manzanita, and Nehalem lined along US-101.
Lincoln County lists Newport as seat, with Lincoln City, Depoe Bay, Toledo, Waldport, and Yachats nearby, fronting the Pacific across from Benton and Linn counties inland. Farther south, Douglas County shows Roseburg as seat with a coastal outlet at Reedsport and Winchester Bay, then timber towns like Sutherlin, Winston, Myrtle Creek, and Canyonville inland. Coos County lists Coquille as seat, though Coos Bay and North Bend are the larger cities, with Bandon, Myrtle Point, and Powers spread along the Coquille and Sixes basins. In the far southwest corner, Curry County lists Gold Beach as seat, with Brookings near the California line and Port Orford midway up the coast. Florence, on the Siuslaw River near the coast, sits in the western reach of Lane County, the valley county covered below.
In Oregon's northwest, Multnomah County lists Portland as county seat, Oregon's largest city and smallest county by area, sitting where the Willamette meets the Columbia, with Gresham, Troutdale, Fairview, and Wood Village labeled to the east. Washington County shows Hillsboro as seat, covering the Tualatin Valley with Beaverton, Tigard, Tualatin, Forest Grove, and Sherwood, and bordering Yamhill, Clackamas, and Multnomah to form the west side of Greater Portland. Clackamas County lists Oregon City as seat, Oregon's oldest incorporated city, stretching from river suburbs like Milwaukie, West Linn, Happy Valley, Canby, and Wilsonville into the Cascade foothills toward Mount Hood's approaches.
South and west of Portland, the valley counties line up in a tight north-south run. Yamhill County lists McMinnville as seat, with Newberg, Dayton, Carlton, Lafayette, and Dundee among the vineyards between Washington and Polk counties. Polk County shows Dallas as seat, with Monmouth and Independence on the Willamette's west bank across from Salem. Marion County lists Salem as county seat and Oregon's state capital, with Keizer just north and Woodburn, Silverton, Stayton, and Jefferson filling the valley to the east and south. Benton County shows Corvallis as seat, home to Oregon State University, with Philomath and Adair Village nearby. Linn County lists Albany as seat, with Lebanon, Sweet Home, Harrisburg, and Brownsville spanning from valley floor to Cascade foothills. Lane County lists Eugene as seat, paired with Springfield on the upper Willamette and reaching west to the coast at Florence, with Junction City, Cottage Grove, and Oakridge marking the valley's north, south, and mountain edges.
Josephine County lists Grants Pass as seat, with Cave Junction toward the Illinois Valley and the California approach, cradled between Curry to the west and Jackson to the east. Jackson County shows Medford as seat, with Ashland, Central Point, Eagle Point, Talent, and Phoenix labeled along the Rogue River, which runs west toward Grants Pass and the coast range. Klamath County lists Klamath Falls as seat, a high-basin county with Chiloquin and Merrill near Upper Klamath Lake, guiding the eye south to California and east toward Lake and Deschutes counties.
East of Portland, the map threads the Columbia River Gorge. Hood River County lists Hood River as county seat, a compact county with Cascade Locks at its western gate and orchards climbing the valley toward Mount Hood. Wasco County shows The Dalles as seat, with Mosier and Dufur labeled as the county reaches south toward wheat country and the Deschutes River canyons. Sherman County lists Moro as seat, with Wasco, Rufus, and Grass Valley clustered near the river. Gilliam County shows Condon as seat, with Arlington on the river edge and Lonerock inland. Morrow County lists Heppner as seat, with Boardman and Irrigon on the Columbia forming a bridge between the river corridor and the interior highlands. Umatilla County shows Pendleton as seat, with Hermiston, Milton-Freewater, and Umatilla labeled where the county meets Washington to the north and Union and Morrow to the east and west.
Up in Oregon's northeast corner, Union County lists La Grande as seat, with Union, Elgin, and Cove mapped among the Blue Mountains foothills around the Grande Ronde Valley. Wallowa County shows Enterprise as seat, with Joseph and Wallowa dotting the high-country lake basin near Wallowa Lake, touching Idaho along the Snake River canyons. Baker County lists Baker City as seat, with Haines, Sumpter, and Halfway around the Powder River basin and Elkhorn peaks, also reaching the Idaho line.
Jefferson County shows Madras as seat, with Warm Springs and Culver sitting under the Cascades' rain shadow. Crook County lists Prineville as seat, a high-desert basin between Jefferson and Deschutes counties. Deschutes County shows Bend as seat, Oregon's fastest-growing county, with Redmond, Sisters, and La Pine along the Deschutes River and US-97 as the road-light guide north-south. Wheeler County lists Fossil as seat and is Oregon's least populous county, with Spray and Mitchell marking the John Day fossil beds. Grant County shows Canyon City as seat, paired closely with John Day, plus Prairie City, Mount Vernon, Monument, and Long Creek around them.
Out in Oregon's remote southeast corner, Harney County lists Burns as seat and is Oregon's largest county by area, with Hines adjoining Burns and big lakebeds and refuge basins spread across the map. Malheur County shows Vale as seat, with Ontario, Nyssa, Adrian, and Jordan Valley near the Idaho border and Owyhee canyons, the Snake River marking much of the state line. Lake County lists Lakeview as seat, with Paisley and Christmas Valley among playas and volcanic buttes where the line meets California.
Four rivers do most of the orientation work on this page. The Columbia River traces the entire north border past Astoria, Portland, and Umatilla. The Willamette River runs the length of the valley from Eugene through Salem to Portland. The Deschutes River threads Central Oregon from Bend north to the Columbia. The Snake River marks the Idaho line through Wallowa, Baker, and Malheur counties. Keep these four in mind and any county on the page reads quickly.
Road-light orientation: the road layer here is intentionally minimal, just enough to help you get your bearings. I-5 runs Ashland–Medford–Eugene–Salem–Portland through the Willamette Valley. I-84 runs Portland–Hood River–The Dalles–Pendleton–Ontario along the Columbia and on into eastern Oregon. I-82 branches off I-84 near Umatilla County toward Washington. US-97 runs Biggs Junction–Bend–Klamath Falls north to south through Central Oregon, and US-101 traces the entire coast from Astoria down to Brookings. None of these lines are meant for turn-by-turn navigation – they're here for orientation only.
Every one of Oregon's 36 counties and its seat, in alphabetical order: Baker County (Baker City), Benton County (Corvallis), Clackamas County (Oregon City), Clatsop County (Astoria), Columbia County (St. Helens), Coos County (Coquille), Crook County (Prineville), Curry County (Gold Beach), Deschutes County (Bend), Douglas County (Roseburg), Gilliam County (Condon), Grant County (Canyon City), Harney County (Burns), Hood River County (Hood River), Jackson County (Medford), Jefferson County (Madras), Josephine County (Grants Pass), Klamath County (Klamath Falls), Lake County (Lakeview), Lane County (Eugene), Lincoln County (Newport), Linn County (Albany), Malheur County (Vale), Marion County (Salem), Morrow County (Heppner), Multnomah County (Portland), Polk County (Dallas), Sherman County (Moro), Tillamook County (Tillamook), Umatilla County (Pendleton), Union County (La Grande), Wallowa County (Enterprise), Wasco County (The Dalles), Washington County (Hillsboro), Wheeler County (Fossil), and Yamhill County (McMinnville).
Oregon borders Washington across the Columbia River to the north, Idaho across the Snake River to the east, Nevada at its southeast corner, California along the long south edge, and the Pacific Ocean to the west. The state holds 36 counties. Harney County is the largest by land area at about 10,135 square miles, while Multnomah County is the smallest at about 435 square miles. Multnomah County, home to Portland, is the most populous at roughly 795,900 residents, while Wheeler County is the least populous with roughly 1,451 residents. Clackamas, Marion, Washington, and Yamhill counties share the title of oldest, all four organized in 1843 as the original districts of the Provisional Government of Oregon. Oregon covers about 98,379 square miles in total. The capital, Salem, sits in Marion County on the Willamette River, and the state's major metros run from Portland and Salem through Eugene to Bend and Medford. Landscape-wise, the state moves from the narrow Pacific coastal strip and Coast Range through the fertile Willamette Valley, up the volcanic Cascade Range, and out into the high desert plateaus and basins of Central and Eastern Oregon.
Oregon's ten largest cities by current population are Portland (about 652,503, Multnomah County), Eugene (about 176,654, Lane County), Salem (about 175,535, Marion County), Gresham (about 114,247, Multnomah County), Hillsboro (about 106,447, Washington County), Bend (about 99,178, Deschutes County), Beaverton (about 97,494, Washington County), Medford (about 85,824, Jackson County), Springfield (about 61,851, Lane County), and Corvallis (about 59,922, Benton County). Portland anchors the state's shipping and finance activity as a Columbia and Willamette River port, while Washington County's "Silicon Forest" is home to Intel's largest US campus and Nike's world headquarters near Beaverton. Eugene and Corvallis center the University of Oregon and Oregon State University, both major employers alongside their research and sports economies. Central Oregon's Bend has grown into a hub for outdoor recreation and remote-work relocation, while timber and wood products remain foundational across Douglas, Coos, and Lane counties. Agriculture runs through the Willamette Valley's grass seed, nursery stock, and wine grapes, the Columbia Basin's wheat and irrigated crops around Umatilla and Morrow counties, and Malheur County's onion fields near the Idaho line. Coos Bay and Astoria serve as the state's main working seaports outside the Columbia River system.
Oregon's cultural identity runs from the coast to the high desert. The Willamette Valley's wine country, centered on Yamhill and Polk counties, has built an international reputation for Pinot Noir since the 1960s, alongside smaller wine regions in the Umpqua and Rogue valleys of Douglas and Jackson counties. The Oregon Coast draws visitors to lighthouses, dunes, and small harbor towns from Astoria to Brookings, while the Cascades anchor year-round outdoor recreation around Mount Hood, Bend, and the approach to Crater Lake through Klamath County. Portland's food, coffee, and craft-beer culture grew up alongside the timber and shipping industries that built the city, and that timber heritage still shapes towns across Coos, Douglas, and Lane counties. Higher education is spread widely across the state: the University of Oregon in Eugene (Lane County), Oregon State University in Corvallis (Benton County), Portland State University in Multnomah County, and Willamette University in Salem (Marion County) anchor the state's college towns. Pendleton's Round-Up in Umatilla County and the historic Pendleton Woolen Mills carry the state's ranching and Native heritage into the present.
On this map, Mount Hood (Cascade Range, Hood River and Clackamas counties) and the Columbia, Willamette, and Deschutes rivers double as landmarks for finding counties quickly. For elevation, terrain, watersheds, and land-cover detail, see our Physical Map of Oregon.
Oregon has a marine west coast climate with cool, wet winters along the coast and Willamette Valley, while the Cascades cast a rain shadow that leaves Central and Eastern Oregon high-desert dry. For a full seasonal and biome breakdown, see our Physical Map of Oregon.
North-south travel runs mainly on I-5 (Ashland to Medford, Eugene, Salem, and Portland through the Willamette Valley) and US-97 (Klamath Falls to Bend and Biggs Junction east of the Cascades). East-west travel runs on I-84 (Portland to Hood River, The Dalles, Pendleton, and Ontario along the Columbia River), with US-20 and US-26 crossing the Cascade passes and US-101 running the full length of the coast from Astoria to Brookings. Keep in mind that ZIP codes do not follow county lines in Oregon, so a single ZIP code can span two counties. Always confirm the county name directly from the map or index rather than assuming it from a ZIP prefix.
Use this as a quick index. Every line lists the county with its county seat (and a familiar city when the map labels one). Short cues mention river, border, or gentle corridor context only.
Clatsop – Astoria; Columbia River mouth on the Pacific.
Columbia – St. Helens; between the river and the Coast Range.
Tillamook – Tillamook; dairy valleys along US-101.
Lincoln – Newport; central coast, fronting Benton and Linn inland.
Lane (coastal reach) – Eugene; Florence and the Siuslaw estuary on the coast.
Douglas – Roseburg; coastal outlet at Reedsport, timber towns inland.
Coos – Coquille; Coos Bay and North Bend are the larger cities.
Curry – Gold Beach; far south coast to the California line.
Multnomah – Portland; smallest county by area, Willamette–Columbia confluence.
Washington – Hillsboro; Tualatin Valley, Silicon Forest tech corridor.
Clackamas – Oregon City; river suburbs into the Cascade foothills.
Yamhill – McMinnville; wine country between Washington and Polk.
Polk – Dallas; Willamette's west bank across from Salem.
Marion – Salem; Oregon's state capital.
Benton – Corvallis; Oregon State University.
Linn – Albany; valley floor to Cascade foothills.
Josephine – Grants Pass; Illinois Valley toward California.
Jackson – Medford; Rogue Valley hub.
Klamath – Klamath Falls; high basin near Upper Klamath Lake.
Hood River – Hood River; Columbia Gorge orchards.
Wasco – The Dalles; gateway to wheat country.
Sherman – Moro; small river-plateau county.
Gilliam – Condon; wheat country on the Columbia.
Morrow – Heppner; river corridor to the interior highlands.
Umatilla – Pendleton; meets Washington to the north.
Union – La Grande; Grande Ronde Valley.
Wallowa – Enterprise; high-country lakes near Idaho.
Baker – Baker City; Powder River basin.
Jefferson – Madras; Cascade rain shadow.
Crook – Prineville; high-desert basin.
Deschutes – Bend; Oregon's fastest-growing county.
Wheeler – Fossil; Oregon's least populous county.
Grant – Canyon City; paired with John Day.
Harney – Burns; Oregon's largest county by area.
Malheur – Vale; Idaho border, Owyhee canyons.
Lake – Lakeview; California border, high-desert lakes.
This directory aligns with what you see on the page: every county, its seat, and a one-line locator that keeps the focus on counties rather than driving steps.
Oregon has 36 counties and the map shows every one with a colored block and county seat.
County boundaries, county seats and neighboring states, with only light road references for orientation.
Salem in Marion County on the Willamette River.
Multnomah County.
Lane County.
Marion County, also Oregon's state capital.
Multnomah County, east of Portland.
Washington County, in the Silicon Forest tech corridor.
Deschutes County, in Central Oregon.
Washington County, west of Portland.
Jackson County, in the Rogue Valley.
From west to east along the Columbia River: Clatsop, Columbia, Multnomah, Hood River, Wasco, Sherman, Gilliam, Morrow, Umatilla.
From north to south: Wallowa, Baker, Malheur.
Harney and Malheur counties, in the southeast corner.
From west to east: Curry, Josephine, Jackson, Klamath, Lake.
I-5 through the Willamette Valley, I-84 along the Columbia, US-97 through Central Oregon, and US-101 on the coast.
Astoria is the seat of Clatsop County at the mouth of the Columbia River.
Grants Pass is the seat of Josephine County, west of Medford.
Pendleton is the seat of Umatilla County.
La Grande is the seat of Union County.
Baker City is the seat of Baker County.
Klamath Falls is the seat of Klamath County, by Upper Klamath Lake.
Lakeview is the seat of Lake County in Oregon's high desert.
Hood River is the seat of Hood River County along the Columbia Gorge.
The Dalles is the seat of Wasco County.
Clatsop, Tillamook, Lincoln, Lane (coastal reach), Douglas, Coos, and Curry.
Condon (Gilliam), Moro (Sherman), Fossil (Wheeler), Canyon City (Grant), Burns (Harney), Heppner (Morrow).
The Columbia, Willamette, Deschutes, and Snake rivers.
No. Printing or copying maps from this site is not permitted.
Harney County, at about 10,135 square miles.
Multnomah County, at about 435 square miles.
Multnomah County, home to Portland, with roughly 795,900 residents.
Wheeler County, with roughly 1,451 residents.
Portland, in Multnomah County, with about 652,503 residents.
Clackamas, Marion, Washington, and Yamhill counties, all organized in 1843 as Oregon's original districts.
No. ZIP codes cross county lines, so use the county boundaries and seats shown here instead.
Physical Map of Oregon
Physical map and map image of Oregon.
Regional Directory of Canada
Information and guide about Canada and website listing.
Regional Directory of United States of America
Information and guide about United States of America and websites with American topics.
Regional Directory of Europe
Information and guide about Europe and websites with European topics.
Regional Directory of Australia
Information and guide about Australia and websites with Australian topics.
