Oklahoma

Harper

3,272
2020 population
1910
first census record
12
census records

About Harper

Harper, Oklahoma, first appears in the United States federal census in 1910, when it recorded a population of 8,189. At the most recent census, in 2020, its population stood at 3,272.

Its recorded population peaked at 8,189 in 1910, and has since declined by roughly 60 percent.

On the ground today, 3 documented military engagements have been recorded within the county, among them Sheridan's Winter Campaign Staging — Camp Supply 1868, Sheridan's Winter Campaign — Camp Supply Skirmish (1868), Camp Supply Area Skirmish, and 17 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
20203,272
20103,685
20003,562
19904,063
19804,715
19705,151
19605,956
19505,977
19406,454
19307,761
19207,623
19108,189
Source

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

Battles & engagements in Harper

Military engagements that took place in Harper, Oklahoma.

Sheridan's Winter Campaign Staging — Camp Supply 1868
1868
Sheridan's Winter Campaign — Camp Supply Skirmish (1868)
1868
Camp Supply Area Skirmish
1868

Historic places in Harper

National Register of Historic Places listings in Harper, Oklahoma.

Old Settler's Irrigation Ditch
Rosston
Buffalo City Park Pavilion
Buffalo
Cooper Bison Kill Site
Fort Supply
Page Soddy
Buffalo
I.O.O.F. Building of Buffalo
Buffalo
Browse all Oklahomahistoric sites ›

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Everything a full report reveals about Harper County, Oklahoma

This page charts the census history of Harper County, Oklahoma. 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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Frequently asked about Harper

When does Harper first appear in the US census?
Harper, Oklahoma first appears in the federal census in 1910, with a recorded population of 8,189.
What is the population of Harper?
At the most recent federal census (2020), Harper had a recorded population of 3,272.
When did Harper's population peak?
Harper's recorded population peaked at 8,189 in 1910.
Were any battles fought in Harper?
3 documented military engagements took place in Harper, including Sheridan's Winter Campaign Staging — Camp Supply 1868, Sheridan's Winter Campaign — Camp Supply Skirmish (1868), Camp Supply Area Skirmish.
How many historic places are in Harper?
17 sites are listed on the National Register of Historic Places in Harper, Oklahoma.
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