Kansas

Marion

11,823

2020 population

1860

first census record

census records

About Marion

Marion, Kansas, first appears in the United States federal census in 1860, when it recorded a population of 74. At the most recent census, in 2020, its population stood at 11,823.

Its recorded population peaked at 22,923 in 1920, and has since declined by roughly 48 percent.

On the ground today, 31 places are listed on the National Register of Historic Places.

Population by decade

Census Year	Population	Chart
2020	11,823
2010	12,660
2000	13,361
1990	12,888
1980	13,522
1970	13,935
1960	15,143
1950	16,307
1940	18,951
1930	20,739
1920	22,923
1910	22,415
1900	20,676
1890	20,539
1880	12,453
1870	768
1860	74

Source

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

Historic places in Marion

National Register of Historic Places listings in Marion, Kansas.

Schroeder, J. S., Building

Peabody

Peabody Township Carnegie Library

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Everything a full report reveals about Marion County, Kansas

This page charts the census history of Marion County, Kansas. 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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Kansashistory ›NRHP historic sites ›Notable people from Kansas›

Frequently asked about Marion

When does Marion first appear in the US census?

Marion, Kansas first appears in the federal census in 1860, with a recorded population of 74.

What is the population of Marion?

At the most recent federal census (2020), Marion had a recorded population of 11,823.

When did Marion's population peak?

Marion's recorded population peaked at 22,923 in 1920.

How many historic places are in Marion?

31 sites are listed on the National Register of Historic Places in Marion, Kansas.

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