Indiana

Adams

35,809
2020 population
1840
first census record
19
census records

About Adams

Adams, Indiana, first appears in the United States federal census in 1840, when it recorded a population of 2,264. At the most recent census, in 2020, its population stood at 35,809.

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

On the ground today, 10 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202035,809
201034,387
200033,625
199031,095
198029,619
197026,871
196024,643
195022,393
194021,254
193019,957
192020,503
191021,840
190022,232
189020,181
188015,385
187011,382
18609,252
18505,797
18402,264
Source

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

Historic places in Adams

National Register of Historic Places listings in Adams, Indiana.

Lenhart Farmhouse
Decatur
Porter, Gene Stratton, Cabin
Geneva
Dugan, Charles, House
Decatur
Grand Rapids and Indiana Railroad Depot
Decatur
Geneva Downtown Commercial Historic District
Geneva
Adams County Courthouse
Decatur
Ceylon Covered Bridge
Ceylon
Browse all Indianahistoric sites ›

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Everything a full report reveals about Adams County, Indiana

This page charts the census history of Adams County, Indiana. 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 Adams

When does Adams first appear in the US census?
Adams, Indiana first appears in the federal census in 1840, with a recorded population of 2,264.
What is the population of Adams?
At the most recent federal census (2020), Adams had a recorded population of 35,809.
How many historic places are in Adams?
10 sites are listed on the National Register of Historic Places in Adams, Indiana.
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