Michigan

Iosco

25,237
2020 population
1860
first census record
17
census records

About Iosco

Iosco, Michigan, first appears in the United States federal census in 1860, when it recorded a population of 175. At the most recent census, in 2020, its population stood at 25,237.

Its recorded population peaked at 30,209 in 1990, and has since declined by roughly 16 percent.

On the ground today, 4 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202025,237
201025,887
200027,339
199030,209
198028,349
197024,905
196016,505
195010,906
19408,560
19307,517
19208,199
19109,753
190010,246
189015,224
18806,873
18703,163
1860175
Source

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

Historic places in Iosco

National Register of Historic Places listings in Iosco, Michigan.

Tawas Point Light Station
East Tawas
Alabaster Historic District
Alabaster
Cooke Hydroelectric Plant
Oscoda
Five Channels Dam Archeological District
Oscoda

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Everything a full report reveals about Iosco County, Michigan

This page charts the census history of Iosco County, Michigan. 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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Michiganhistory ›NRHP historic sites ›Notable people from Michigan›

Frequently asked about Iosco

When does Iosco first appear in the US census?
Iosco, Michigan first appears in the federal census in 1860, with a recorded population of 175.
What is the population of Iosco?
At the most recent federal census (2020), Iosco had a recorded population of 25,237.
When did Iosco's population peak?
Iosco's recorded population peaked at 30,209 in 1990.
How many historic places are in Iosco?
4 sites are listed on the National Register of Historic Places in Iosco, Michigan.
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