Wisconsin

Iowa

23,709
2020 population
1830
first census record
20
census records

About Iowa

Iowa, Wisconsin, first appears in the United States federal census in 1830, when it recorded a population of 1,587. At the most recent census, in 2020, its population stood at 23,709.

Its recorded population peaked at 24,544 in 1870, and has since declined by roughly 3 percent.

On the ground today, 2 documented military engagements have been recorded within the county, among them Battle of Wisconsin Heights, Skirmish at Blue Mounds, and 40 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202023,709
201023,687
200022,780
199020,150
198019,802
197019,306
196019,631
195019,610
194020,595
193020,039
192021,504
191022,497
190023,114
189022,117
188023,628
187024,544
186018,967
18509,525
18403,978
18301,587
Source

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

Battles & engagements in Iowa

Military engagements that took place in Iowa, Wisconsin.

Battle of Wisconsin Heights
1832
Skirmish at Blue Mounds
1832

Historic places in Iowa

National Register of Historic Places listings in Iowa, Wisconsin.

Taliesin
Spring Green
Kittleson House
Barneveld
Iowa Street Historic District
Dodgeville
Linden Methodist Church
Linden
Old Rock School
Dodgeville
Pendarvis (Additional Documentation)
Mineral Point
Dodge Mining Camp Cabin
Dodgeville
Unity Chapel
Spring Green
Roberts House
Barneveld
Ihm House
Barneveld
Hyde Chapel
Ridgeway
Plum Grove Primitive Methodist Church
Ridgeway
Iowa County Courthouse
Dodgeville
Cassidy Farmhouse
Barneveld
Wyoming Valley School
Wyoming
Browse all Wisconsinhistoric sites ›

Other counties in Wisconsin

Explore census history and historic records for more Wisconsin counties.

TrempealeauVernonVilasWalworthWashburnWashingtonWaukeshaWaupacaWausharaWinnebagoWoodAdamsAshlandBarronBayfieldBrownBuffaloBurnettCalumetChippewa
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Everything a full report reveals about Iowa County, Wisconsin

This page charts the census history of Iowa 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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Explore Wisconsin records

Wisconsinhistory ›NRHP historic sites ›Notable people from Wisconsin›

Frequently asked about Iowa

When does Iowa first appear in the US census?
Iowa, Wisconsin first appears in the federal census in 1830, with a recorded population of 1,587.
What is the population of Iowa?
At the most recent federal census (2020), Iowa had a recorded population of 23,709.
When did Iowa's population peak?
Iowa's recorded population peaked at 24,544 in 1870.
Were any battles fought in Iowa?
2 documented military engagements took place in Iowa, including Battle of Wisconsin Heights, Skirmish at Blue Mounds.
How many historic places are in Iowa?
40 sites are listed on the National Register of Historic Places in Iowa, Wisconsin.
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