Illinois

Adams

65,737
2020 population
1830
first census record
20
census records

About Adams

Adams, Illinois, first appears in the United States federal census in 1830, when it recorded a population of 2,186. At the most recent census, in 2020, its population stood at 65,737.

Its recorded population peaked at 71,622 in 1980, and has since declined by roughly 8 percent.

On the ground today, 27 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202065,737
201067,103
200068,277
199066,090
198071,622
197070,861
196068,467
195064,690
194065,229
193062,784
192062,188
191064,588
190067,058
189061,888
188059,135
187056,362
186041,323
185026,508
184014,476
18302,186
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, Illinois.

One Thirty North Eighth Building
Quincy
Coca-Cola Bottling Company Building
Quincy
Wood, John, Mansion
Quincy
Gardner, Robert W., House
Quincy
Morgan-Wells House
Quincy
South Side German Historic District
Quincy
Lewis Round Barn
Mendon
Wood, Ernest M., Office and Studio
Quincy
Exchange Bank
Golden
Roy, John, Site
Clayton
Fall Creek Stone Arch Bridge
Payson
State Savings Loan and Trust
Quincy
Ebenezer Methodist Episcopal Chapel and Cemetery
Golden
U.S. Post Office and Courthouse
Quincy
Quincy Northwest Historic District
Quincy
Ursa Town Hall
Ursa
Lesem, S.J., Building
Quincy
Woodland Cemetery
Quincy
Warfield, William S., House
Quincy
Lock and Dam No. 21 Historic District
Quincy
Newcomb, Richard F., House
Quincy
Thomas, F. D., House
Camp Point
Quincy East End Historic District
Quincy
Quincy National Cemetery
Quincy
Browse all Illinoishistoric sites ›

Other counties in Illinois

Explore census history and historic records for more Illinois counties.

JasperJeffersonJerseyJo DaviessJohnsonKaneKankakeeKendallKnoxLa SalleLakeLaSalleLawrenceLeeLivingstonLoganMaconMacoupinMadisonMarion
Unlimited access

Everything a full report reveals about Adams County, Illinois

This page charts the census history of Adams County, Illinois. 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.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your Adams County, Illinois report
Or see a real report first

Explore Illinois records

Illinoishistory ›NRHP historic sites ›Notable people from Illinois›

Frequently asked about Adams

When does Adams first appear in the US census?
Adams, Illinois first appears in the federal census in 1830, with a recorded population of 2,186.
What is the population of Adams?
At the most recent federal census (2020), Adams had a recorded population of 65,737.
When did Adams's population peak?
Adams's recorded population peaked at 71,622 in 1980.
How many historic places are in Adams?
27 sites are listed on the National Register of Historic Places in Adams, Illinois.
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report