Missouri

Oregon

8,635
2020 population
1850
first census record
18
census records

About Oregon

Oregon, Missouri, first appears in the United States federal census in 1850, when it recorded a population of 1,432. At the most recent census, in 2020, its population stood at 8,635.

Its recorded population peaked at 14,681 in 1910, and has since declined by roughly 41 percent.

On the ground today, 5 documented military engagements have been recorded within the county, among them Pocahontas Skirmish (second, Oregon County), Oregon County Guerrilla Raid 1862, Skirmish at Alton, and 3 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
20208,635
201010,881
200010,344
19909,470
198010,238
19709,180
19609,845
195011,978
194013,390
193012,220
192012,889
191014,681
190013,906
189010,467
18805,791
18703,287
18603,009
18501,432
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in Oregon

Military engagements that took place in Oregon, Missouri.

Pocahontas Skirmish (second, Oregon County)
1862
Oregon County Guerrilla Raid 1862
1862
Skirmish at Alton
1862
Alton Skirmish (Oregon County)
1862
Alton Second Skirmish (Oregon County, 1863)
1863

Historic places in Oregon

National Register of Historic Places listings in Oregon, Missouri.

Greer Mill
Alton
Browse all Missourihistoric sites ›

Other counties in Missouri

Explore census history and historic records for more Missouri counties.

PhelpsPikePlattePolkPulaskiPutnamRallsRandolphRayReynoldsRipleySalineSchuylerScotlandScottShannonShelbySt. CharlesSt. ClairSt. Francois
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Everything a full report reveals about Oregon County, Missouri

This page charts the census history of Oregon County, Missouri. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

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

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Explore Missouri records

Missourihistory ›NRHP historic sites ›Notable people from Missouri›

Frequently asked about Oregon

When does Oregon first appear in the US census?
Oregon, Missouri first appears in the federal census in 1850, with a recorded population of 1,432.
What is the population of Oregon?
At the most recent federal census (2020), Oregon had a recorded population of 8,635.
When did Oregon's population peak?
Oregon's recorded population peaked at 14,681 in 1910.
Were any battles fought in Oregon?
5 documented military engagements took place in Oregon, including Pocahontas Skirmish (second, Oregon County), Oregon County Guerrilla Raid 1862, Skirmish at Alton.
How many historic places are in Oregon?
3 sites are listed on the National Register of Historic Places in Oregon, Missouri.
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