Mercer County , Illinois

Mercer County: County in Illinois, United States

Mercer County locator map
Location of Mercer County on Illinois map.

About

Mercer County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 16,434 and a population density of 11 people per km². After 10 years in 2020 county had an estimated population of 15,225 inhabitants. Its county seat is Aledo. The county was created 196 years ago in 1825.

Mercer County Courthouse Image. image
Mercer County Courthouse Image.
Mercer County Courthouse Image. image

Geography

Mercer County is located at 41°12'19"N 90°44'29"W (41.2053400, -90.7414100). It has 7 neighbors: Des Moines County, Louisa County, Henderson County, Henry County, Knox County, Rock Island County and Warren County.

Mercer County map

The largest city of Mercer County is Aledo with a population of 3,383. Other cities include, Burgess population 2,249, Matherville population 651, Sherrard population 588 and Eliza population 385. See all Mercer County cities & populated places.

Weather

Mercer County forecast: A chance of rain showers. Partly sunny, with a high near 59. Chance of precipitation is 30%. more

Mercer County Quick Facts

Population : 15,225 (2020)
Country : United States of America
State : Illinois (United States)
Different from : Mercer County, Mercer County, Mercer County, Mercer County, Mercer County, Mercer County, Mercer County
Area : 1453 km2
Water as percent of area : 1.3%
Land as percent of area : 98.7%
Named for : Hugh Mercer
Capital : Aledo
Establishment : January 01, 1825
Time Zone : America/Chicago
Local time : 11:58:56 (24th October 2021)
Density : 10 Pop. per km² as of 2020
Population growth : -7.94% (2010-2020)
Weather : 59℉ Chance Rain Showers 7-days weather

Mercer County has 7 neighbours.

Demographics

According to census records, the population of Mercer County decreased by 7.94% in 10 years.

Year Population % Change Method
2010 16,434 - census
2011 16,316 -0.72% estimation process
2012 16,163 -0.95% estimation process
2013 16,075 -0.55% estimation process
2014 15,901 -1.09% estimation process
2015 15,746 -0.98% estimation process
2016 15,602 -0.92% estimation process
2017 15,608 0.04% estimation process
2018 15,551 -0.37% estimation process
2019 15,437 -0.74% estimation process
2020 15,225 -1.39% estimation process

Comitatul Mercer, Comte de Mercer, Comté de Mercer, Condado de Mercer, Condado han Mercer, Contea di Mercer, Hrabstwo Mercer, Mercer, Mercer Comitatus, Mercer Kun, Mercer Kūn, Mercer konderria, Mercer megye, Merser, Merser srjan, Mursur, Okrug Merser, Quan Mercer, Quận Mercer, mararsera ka'unti, masa jun, mo se xian, mqatʿt myrsyr, shhrstan mrsr aylynwy, Мерсер, Мърсър, Округ Мерсер, Մերսեր շրջան, شهرستان مرسر، ایلینوی, مرسر کاؤنٹی، الینوائے, مرسر کاؤنٹی، الینوۓ, مقاطعة ميرسير, মারর্সের কাউন্টি, マーサー郡, 默瑟縣

People born in Mercer County (4)

People born in Mercer County, including United States federal judge Orie Leon Phillips, mayor William Arthur Ginn, academic Ida Morey Riley, you can see a list of people who born in Mercer County.

Other places with the same name (8)

Mercer County Populated Places

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

City Name Population Title
Aledo 3,383 City in Mercer County, Illinois, United States
Burgess 2,249 Unincorporated community in Illinois
Preemption 1,628 Township in Mercer County, Illinois
Viola 874 Village in Illinois, United States
Millersburg 688 Township in Mercer County, Illinois
Matherville 651 Human settlement in Illinois, United States of America
New Boston 644 Township in Mercer County, Illinois
Sherrard 588 Human settlement in Illinois, United States of America
Keithsburg 569 Township in Mercer County, Illinois, United States
Norwood 447 Village in Peoria County, Illinois, United States
Eliza 385 Unincorporated community in Illinois
Joy 377 Village in Illinois, United States
North Henderson 206 Township in Mercer County, Illinois

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