Maps of Oregon are a crucial element of genealogy and family tree research, notably if you live far from where your ancestor lived.
Given that Oregon’s political borders have often changed over the years, historic maps are an excellent way of discovering the precise location of your ancestor’s home, just what land they owned, exactly who their neighbors happen to be, and a lot more besides.
Maps of Oregon are a superb resource for starting out with your research since they provide useful information and facts immediately and display them in a clear and easily understandable format.
Oregon’s 10 largest cities are Portland, Eugene, Salem, Gresham, Hillsboro, Beaverton, Bend, Medford, Springfield, and Corvallis.
Learn more historical facts about Oregon counties here.
Interactive Map of Oregon County Formation History
AniMap Plus 3.0, with the permission of the Goldbug Company
List of Every Oregon County
Baker County
Established in 1862, Baker County has a population of around 16,000 people. It is known for its mining history and outdoor recreational opportunities.
Benton County
Founded in 1847, Benton County has a population of approximately 94,000 people. It is home to Oregon State University and offers a mix of urban and rural areas.
Clackamas County
Established in 1843, Clackamas County has a population of over 420,000. It includes part of Portland and is valued for its natural beauty and outdoor activities.
Clatsop County
Founded in 1844, Clatsop County has around 39,000 residents. It is located on the northern coast of Oregon and is home to popular tourist destinations such as Cannon Beach.
Columbia County
Established in 1854, Columbia County has a population of approximately 52,000. It is situated in the northwest part of the state and includes portions of the Columbia River.
Coos County
Coos County has a population of over 63,000 people and was founded in 1853. It is located on the southern coast of Oregon and includes a mix of rural and urban areas.
Crook County
Established in 1882, Crook County has around 24,000 residents. It is located in central Oregon and is celebrated for its agricultural and outdoor recreation opportunities.
Curry County
Founded in 1855, Curry County has a population of approximately 23,000. It is situated on the southern coast of Oregon and is acclaimed for its scenic beauty and outdoor activities.
Deschutes County
Deschutes County has a population of over 197,000 people and was established in 1916. It is located in central Oregon and is famous for its natural beauty and outdoor activities.
Douglas County
Founded in 1852, Douglas County has a population of around 111,000 people. It is located in southwestern Oregon and is well-known for its agricultural and forestry industries.
Gilliam County
Established in 1885, Gilliam County has a population of approximately 1,800. It is located in north-central Oregon and is known for its wheat farming and ranching.
Grant County
Founded in 1864, Grant County is home to around 7,000 people. It is situated in eastern Oregon and is known for its historic mining towns and outdoor activities.
Harney County
Established in 1889, Harney County has a population of approximately 7,500. It is located in southeastern Oregon and is much loved for its vast open spaces and outdoor activities.
Hood River County
Founded in 1908, Hood River County has over 25,000 residents. It is located in northern Oregon and is acclaimed for its agriculture and outdoor recreation opportunities.
Jackson County
Established in 1852, Jackson County has a population of around 220,000. It is situated in southwestern Oregon and is known for its natural beauty and outdoor activities.
Jefferson County
Jefferson County has a population of approximately 25,000 and was founded in 1914. It is located in central Oregon and is famous for its agricultural and outdoor recreation opportunities.
Josephine County
Established in 1856, Josephine County is home to over 86,000 people. It is located in southwestern Oregon and is known for its natural beauty and outdoor activities.
Klamath County
Founded in 1882, Klamath County has a population of around 68,000. It is located in southern Oregon and is valued for its outdoor recreational opportunities, including Crater Lake National Park.
Lake County
Established in 1874, Lake County has a population of approximately 8,000. It is located in southeastern Oregon and is known for its scenic beauty and outdoor activities.
Lane County
Founded in 1851, Lane County is home to over 382,000 people. It includes the city of Eugene and is much loved for its natural beauty and outdoor recreation opportunities.
Lincoln County
Lincoln County has around 50,000 residents and was established in 1893. It is located on the central coast of Oregon and is known for its beaches and outdoor activities.
Linn County
Founded in 1847, Linn County has a population of approximately 130,000. It is situated in the Willamette Valley and is notable for its agricultural and timber industries.
Malheur County
Established in 1887, Malheur County has a population of over 30,000. It is located in eastern Oregon and is known for its agricultural industries and outdoor recreation opportunities.
Marion County
Marion County was founded in 1843 and has a population of around 350,000 people. It includes the city of Salem and is celebrated for its agricultural industries and scenic beauty.
Morrow County
Established in 1885, Morrow County is home to approximately 11,000 residents. It is located in eastern Oregon and is known for its agricultural industries and outdoor activities.
Multnomah County
Founded in 1854, Multnomah County has a population of over 811,000 people. It includes the city of Portland and is valued for its urban areas and natural beauty.
Polk County
Polk County was established in 1845 and has a population of around 86,000. It is situated in the Willamette Valley and is known for its agricultural industries and natural beauty.
Sherman County
Founded in 1889, Sherman County has approximately 1,700 residents. It is located in north-central Oregon and is famous for its wheat farming and outdoor activities.
Tillamook County
Established in 1853, Tillamook County has a population of around 26,000 people. It is situated on the northern coast of Oregon and is known for its scenic beauty and outdoor activities.
Umatilla County
Founded in 1862, Umatilla County has a population of over 81,000 people. It is located in eastern Oregon and is well-known for its agricultural industries and outdoor recreational opportunities.
Union County
Union County was established in 1864 and has a population of approximately 27,000. It is located in northeastern Oregon and is known for its outdoor activities and historic downtown areas.
Wallowa County
Founded in 1887, Wallowa County has around 7,000 residents. It is situated in northeastern Oregon and is notable for its natural beauty and outdoor activities.
Wasco County
Established in 1854, Wasco County has a population of over 26,000 people. It is located in northern Oregon and is known for its agricultural industries and outdoor recreation opportunities.
Washington County
Washington County was founded in 1843 and is home to around 612,000 residents. It includes the city of Hillsboro and is well-known for its urban areas, high-tech industry, and natural beauty.
Wheeler County
Established in 1899, Wheeler County has a population of approximately 1,200. It is located in central Oregon and is much loved for its natural beauty and outdoor activities, such as hiking, fishing, and hunting.
Yamhill County
Yamhill County was founded in 1843 and has around 110,000 residents. It is situated in the Willamette Valley and is celebrated for its agricultural industries, wineries, and outdoor activities.
Old Antique Atlases & Maps of Oregon
David Rumsey Historical Map Collection
- 1856 Atlas Map of Oregon And Washington
- 1866 Map of Oregon
- 1880 Map of Oregon, Washington, Idaho, and part of Montana
Oregon Map Links
- Oregon State Park Map (mapofus.org)
- Oregon Digital Map Library (usgwarchives.net)
- Old Historical Maps of Oregon (alabamamaps.ua.edu)
- Oregon Maps, Atlases & Gazetteers (ancestry.com)
- Oregon Maps – The Perry-Castañeda Library Map Collection (lib.utexas.edu)
- U.S., Indexed County Land Ownership Maps, 1860-1918 (ancestry.com)
- American Memory Map Collection: 1500-2004 (memory.loc.gov)
- Oregon Map Books (amazon.com)
