Iowa

Sac

9,814
2020 population
1860
first census record
17
census records

About Sac

Sac, Iowa, first appears in the United States federal census in 1860, when it recorded a population of 246. At the most recent census, in 2020, its population stood at 9,814.

Its recorded population peaked at 17,641 in 1930, and has since declined by roughly 44 percent.

On the ground today, 13 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
20209,814
201010,350
200011,529
199012,324
198014,118
197015,573
196017,007
195017,518
194017,639
193017,641
192017,500
191016,555
190017,639
189014,522
18808,774
18701,411
1860246
Source

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

Historic places in Sac

National Register of Historic Places listings in Sac, Iowa.

Perkins, George and Lola, House
Sac City
Sac City Monument Square Historic District
Sac City
Seven Oaks
Sac City
Sac City Chicago and North Western Depot
Sac City
Chicago and North Western Passenger Depot
Wall Lake
Lakeside Park Historic District
Lake View
Chief Black Hawk Statue
Lake View
Park Hotel
Sac City
Chautauqua Park Historic District
Sac City
Sac County Courthouse
Sac City
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Everything a full report reveals about Sac County, Iowa

This page charts the census history of Sac County, Iowa. 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 Sac

When does Sac first appear in the US census?
Sac, Iowa first appears in the federal census in 1860, with a recorded population of 246.
What is the population of Sac?
At the most recent federal census (2020), Sac had a recorded population of 9,814.
When did Sac's population peak?
Sac's recorded population peaked at 17,641 in 1930.
How many historic places are in Sac?
13 sites are listed on the National Register of Historic Places in Sac, Iowa.
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