County Census Records

Oregon Counties

37 counties with population data from the decennial US Census, 1790 to 2020.

37 counties

Population as of 2020 census
Baker
16,668
Benton
95,184
Clackamas
421,401
Clatsop
41,072
Columbia
52,589
Coos
64,929
Crook
24,738
Curry
23,446
Deschutes
198,253
Douglas
111,201
Gilliam
1,995
Grant
7,233
Harney
7,495
Hood River
23,977
Jackson
223,259
Jefferson
24,502
Josephine
88,090
Klamath
69,413
Lake
8,160
Lane
382,971
Lincoln
50,395
Linn
128,610
Malheur
31,571
Marion
345,920
Morrow
12,186
Multnomah
815,428
Polk
87,433
Sherman
1,870
Tillamook
27,390
Umatilla
80,075
Umpqua
1,250
Union
26,196
Wallowa
7,391
Wasco
26,670
Washington
600,372
Wheeler
1,451
Yamhill
107,722
Unlimited access

Everything a full the United States report reveals

Pick any location and Aubrey pulls together 18 strands of its history, each drawn from the record:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your first month for $5.99
Or see a real report first
Oregonhistory ›NRHP sites in Oregon
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report