Missouri

Osage

13,274
2020 population
1850
first census record
18
census records

About Osage

Osage, Missouri, first appears in the United States federal census in 1850, when it recorded a population of 6,704. At the most recent census, in 2020, its population stood at 13,274.

Its recorded population peaked at 14,283 in 1910, and has since declined by roughly 7 percent.

On the ground today, 9 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202013,274
201013,878
200013,062
199012,018
198012,014
197010,994
196010,867
195011,301
194012,375
193012,462
192013,559
191014,283
190014,096
189013,080
188011,824
187010,793
18607,879
18506,704
Source

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

Historic places in Osage

National Register of Historic Places listings in Osage, Missouri.

Huber's Ferry Farmstead Historic District
Jefferson City
St. Joseph Church
Westphalia
Townley, Alvah WAshington, Farmstead Historic District
Chamois
Bonnots Mill Historic District
Bonnots Mill
Sacred Heart Catholic Church and Parsonage
Rich Fountain
Browse all Missourihistoric sites ›

Other counties in Missouri

Explore census history and historic records for more Missouri counties.

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Everything a full report reveals about Osage County, Missouri

This page charts the census history of Osage 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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Missourihistory ›NRHP historic sites ›Notable people from Missouri›

Frequently asked about Osage

When does Osage first appear in the US census?
Osage, Missouri first appears in the federal census in 1850, with a recorded population of 6,704.
What is the population of Osage?
At the most recent federal census (2020), Osage had a recorded population of 13,274.
When did Osage's population peak?
Osage's recorded population peaked at 14,283 in 1910.
How many historic places are in Osage?
9 sites are listed on the National Register of Historic Places in Osage, Missouri.
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