Wisconsin

Marathon

138,013
2020 population
1850
first census record
18
census records

About Marathon

Marathon, Wisconsin, first appears in the United States federal census in 1850, when it recorded a population of 508. At the most recent census, in 2020, its population stood at 138,013.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 35 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020138,013
2010134,063
2000125,834
1990115,400
1980111,270
197097,457
196088,874
195080,337
194075,915
193070,629
192065,259
191055,054
190043,256
189030,369
188017,121
18705,885
18602,892
1850508
Source

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

Historic places in Marathon

National Register of Historic Places listings in Marathon, Wisconsin.

Wright, Duey and Julia, House
Wausau
Yawkey, Cyrus C., House
Wausau
Manson, Charles L. and Dorothy, House
Wausau
Fromm Brothers Fur and Ginseng Farm
Hamburg
Dells of the Eau Claire County Park
Plover
Wausau Club
Wausau
Dessert, Joseph, Library
Mosinee
Rothschild Pavilion
Rothschild
Stewart, Hiram C., House
Wausau
Bird, C. B., House
Wausau
Dunbar, C. F., House
Wausau
Wright, Ely, House
Wausau
East Hill Residential Historic District
Wausau
Jones, Granville D., House
Wausau
Everest, D. C., House
Wausau
Browse all Wisconsinhistoric sites ›

Other counties in Wisconsin

Explore census history and historic records for more Wisconsin counties.

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Everything a full report reveals about Marathon County, Wisconsin

This page charts the census history of Marathon County, Wisconsin. 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 Marathon

When does Marathon first appear in the US census?
Marathon, Wisconsin first appears in the federal census in 1850, with a recorded population of 508.
What is the population of Marathon?
At the most recent federal census (2020), Marathon had a recorded population of 138,013.
How many historic places are in Marathon?
35 sites are listed on the National Register of Historic Places in Marathon, Wisconsin.
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