Adams County , Illinois

Adams County: County in Illinois, United States

About

Adams County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 67,103 and a population density of 30 people per km². After 10 years in 2020 county had an estimated population of 64,783 inhabitants. Its county seat is Quincy. The county was created 197 years ago in 1824.

Adams County Quick Facts

Population : 64,783 (2020)
Country : United States of America
State : Illinois (United States)
Different from : Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County
Area : 2257 km2
Official name : Adams
Water as percent of area : 1.9%
Land as percent of area : 98.1%
Named for : John Quincy Adams
Capital : Quincy
Establishment : January 01, 1825
Time Zone : America/Chicago
Local time : 08:40:18 (21st May 2022)
Density : 29 Pop. per km² as of 2020
Population growth : -3.58% (2010-2020)
Adams County locator map
Location of Adams County on Illinois map.
Adams County Courthouse  Quincy image
Adams County Courthouse Quincy
Adams County Courthouse  Quincy image

Geography

Adams County is located at 39°59'16"N 91°11'19"W (39.9878900, -91.1884900). It has 6 neighbors: Brown County, Pike County, Marion County, Hancock County, Schuyler County and Lewis County.

Adams County map

The largest city of Adams County is Quincy with a population of 39,589. Other cities include, Spring Valley population 5,065, Burton population 862, Clayton population 668 and Golden population 611. See all Adams County cities & populated places.

Adams County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Adams County.

City Name Population Title
Quincy 39,589 County seat of Adams County, Illinois, United States
Spring Valley 5,065 City in Illinois, United States
Adams 1,536 Civil town in Adams County, Wisconsin
Kingston 1,160 Village in Illinois, USA
Camp Point 1,080 Village in Adams County, Illinois, United States
Payson 980 Village in Illinois, United States
Mendon 948 Village in Illinois
Burton 862 Human settlement in United States of America
Clayton 668 City in Illinois, United States of America
Golden 611 City in Illinois, United States of America
Ursa 596 Village in Adams County, Illinois, United States
Fall Creek 513 Unincorporated community in Illinois, United States
Liberty 500 Village in Illinois, United States
Beverly 390 Unincorporated community in Illinois
Richfield 389 Township in Adams County, Illinois
Loraine 278 Human settlement in Illinois, United States of America

Adams County has 6 neighbours.

Demographics

According to census records, the population of Adams County decreased by 3.58% in 10 years.

Year Population % Change Method
2010 67,103 - census
2011 67,211 0.16% estimation process
2012 67,139 -0.11% estimation process
2013 66,999 -0.21% estimation process
2014 66,966 -0.05% estimation process
2015 66,835 -0.2% estimation process
2016 66,475 -0.54% estimation process
2017 66,057 -0.63% estimation process
2018 65,623 -0.66% estimation process
2019 65,435 -0.29% estimation process
2020 64,783 -1.01% estimation process

Adams, Adams Comitatus, Adams Kun, Adams Kūn, Adams konderria, Adams megye, Adamsi srjan, Comitatul Adams, Comte d'Adams, Comte dAdams, Comté d'Adams, Comté dAdams, Condado de Adams, Condado han Adams, Contea di Adams, Hrabstwo Adams, Okrug Adams, Quan Adams, Quận Adams, adamuzu jun, mqatʿt admz, shhrstan adamz aylynwy, ya dang si xian, Адамс, Округ Адамс, Ադամսի շրջան, ایڈمز کاؤنٹی, ایڈمز کاؤنٹی، الینوائے, شهرستان آدامز، ایلینوی, مقاطعة آدمز, অ্যাডামস কাউন্টি, アダムズ郡, 亞當斯縣

People born in Adams County (2)

People born in Adams County, including botanist William Conklin Cusick, physician James Asher Richardson, .

List

Other places with the same name (12)

Illinois Other Counties (more counties)

County Name Population Title
Cook County 5,108,284 County in Illinois, United States
Chicago 2,677,643 City and county seat of Cook County, Illinois, United States
DuPage County 917,481 County in Illinois, United States
Lake County 693,593 County in Oregon, United States
Will County 688,726 County in Illinois, United States
Kane County 531,010 County in southern Utah, United States
Markham 328,966 City in Cook County, Illinois, United States
McHenry County 305,888 County in Illinois, United States
Winnebago County 281,295 County in Illinois, United States
Madison County 262,635 County in Montana, United States
Saint Clair County 258,046 The County of St.
Champaign County 209,192 County in Illinois, United States
Aurora 196,383 City in Kane County, Illinois, United States
Sangamon County 193,882 County in Illinois, United States
Peoria County 177,652 County in Illinois, United States of America
McLean County 171,256 County in North Dakota, United States