Minnesota

Nicollet

34,454
2020 population
1860
first census record
17
census records

About Nicollet

Nicollet, Minnesota, first appears in the United States federal census in 1860, when it recorded a population of 3,773. At the most recent census, in 2020, its population stood at 34,454.

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

On the ground today, 17 documented military engagements have been recorded within the county, among them Cambria Phase Conflict – Minnesota River, Oilcan Site Fortification – Minnesota, Treaty of Traverse des Sioux (July 23, 1851), and 24 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202034,454
201032,727
200029,771
199028,076
198026,929
197024,518
196023,196
195020,929
194018,282
193016,550
192015,036
191014,125
190014,774
189013,382
188012,333
18708,362
18603,773
Source

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

Battles & engagements in Nicollet

Military engagements that took place in Nicollet, Minnesota.

Cambria Phase Conflict – Minnesota River
1250
Oilcan Site Fortification – Minnesota
1300
Treaty of Traverse des Sioux (July 23, 1851)
1851
Fort Ridgely Attacks
1862
First Attack on Fort Ridgely
1862
Second Attack on Fort Ridgely
1862
Battle of Fort Ridgely — Artillery Defense
1862
Fort Ridgely First Attack
1862
Fort Ridgely First Attack — Dakota War (August 20, 1862)
1862
Fort Ridgely Defense – Dakota War Connection
1862
Battle of Fort Ridgely — Second Assault
1862
Battle of Fort Ridgely — First Assault
1862
Battle of Fort Ridgely (First)
1862
Dakota War – Siege of Fort Ridgely Second Attack
1862
Fort Ridgely Second Attack — Dakota War (August 22, 1862)
1862
Battle of Fort Ridgely (Second Attack)
1862
Fort Ridgely Second Attack
1862

Historic places in Nicollet

National Register of Historic Places listings in Nicollet, Minnesota.

Cox, Eugene Saint Julien, House
St. Peter
Traverse des Sioux
St. Peter
Fort Ridgely
Fairfax
Center Building-Minnesota Hospital for The Insane
St. Peter
Harkin, Alexander, Store
New Ulm
Nicollet County Courthouse and Jail
St. Peter
Schumacher, Emily and Stephen, House
St. Peter
Union Presbyterian Church
St. Peter
Church of the Holy Communion-Episcopal
St. Peter
St. Peter Armory
St. Peter
Browse all Minnesotahistoric sites ›

Other counties in Minnesota

Explore census history and historic records for more Minnesota counties.

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Everything a full report reveals about Nicollet County, Minnesota

This page charts the census history of Nicollet County, Minnesota. 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 Nicollet

When does Nicollet first appear in the US census?
Nicollet, Minnesota first appears in the federal census in 1860, with a recorded population of 3,773.
What is the population of Nicollet?
At the most recent federal census (2020), Nicollet had a recorded population of 34,454.
Were any battles fought in Nicollet?
17 documented military engagements took place in Nicollet, including Cambria Phase Conflict – Minnesota River, Oilcan Site Fortification – Minnesota, Treaty of Traverse des Sioux (July 23, 1851).
How many historic places are in Nicollet?
24 sites are listed on the National Register of Historic Places in Nicollet, Minnesota.
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