Jo Daviess County, Illinois

Jo Daviess County: County in Illinois, United States

About

Jo Daviess County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 22,678 and a population density of 14 people per km². After 10 years in 2020 county had an estimated population of 21,239 inhabitants. Its county seat is Galena. The county was created 198 years ago in 1826.

Jo Daviess County locator map
Location of Jo Daviess County on Illinois map.

Quick Facts about Jo Daviess County

Population : 21,239 (2020)
Country : United States of America
State : Illinois (United States)
Area : 1602 km2
Water as percent of area : 2.9%
Land as percent of area : 97.1%
Named for : Joseph Hamilton Daveiss
Altitude : 741 feet / 226 meters
Capital : Galena
Establishment : January 01, 1827
Time Zone : America/Chicago
Local time : 17:21:44 (22nd February 2025)
Density : 13 Pop. per km² as of 2020
Population growth : -6.78% (2010-2020)
Jo Daviess County IL U.S. 20 terrain1 image
Jo Daviess County IL U.S. 20 terrain1
Jo Daviess County IL U.S. 20 terrain1 image
Jo Daviess County IL U.S. 20 terrain1 image

Geography

Jo Daviess County is located at 42°21'57"N 90°12'45"W (42.3657100, -90.2124100). It has 6 neighbors: Dubuque County, Jackson County, Carroll County, Stephenson County, Grant County and Lafayette County.

Jo Daviess County map

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The largest city of Jo Daviess County is Galena with a population of 3,151. Other cities include, Stockton population 1,709, East Dubuque population 1,565, Guilford population 1,144 and Elizabeth population 722. See all Jo Daviess County cities & populated places.

Jo Daviess County Populated Places

Cities, towns, neighborhoods & other populated places in Jo Daviess County.

City Name Population Title
Galena 3,151 County seat of Jo Daviess County, Illinois
Stockton 1,709 City in Illinois
East Dubuque 1,565 City in Jo Daviess County, Illinois, United States
Warren 1,300 Village in Jo Daviess County, Illinois, United States
Guilford 1,144 Unincorporated community in Illinois, United States
Hanover 769 Village in Illinois, United States
Elizabeth 722 Settlement in Illinois
Woodbine 474 Human settlement in Illinois, United States of America
Scales Mound 356 Human settlement in Illinois, United States of America
Apple River 344 Township in Jo Daviess County, Illinois
Pleasant Valley 248 Unincorporated community in Illinois, United States
Menominee 241 Village in Illinois, United States
Council Hill 134 Township in Jo Daviess County, Illinois
Nora 116 Village in Illinois, USA

Jo Daviess County has 6 neighbours.

Demographics

According to census records, the population of Jo Daviess County decreased by 6.78% in 10 years.

Year Population % Change Method
2010 22,678 - census
2011 22,640 -0.17% estimation process
2012 22,543 -0.43% estimation process
2013 22,399 -0.64% estimation process
2014 22,341 -0.26% estimation process
2015 22,066 -1.25% estimation process
2016 21,814 -1.16% estimation process
2017 21,495 -1.48% estimation process
2018 21,331 -0.77% estimation process
2019 21,235 -0.45% estimation process
2020 21,239 0.02% estimation process

Comitatul Jo Daviess, Comte de Jo Daviess, Comté de Jo Daviess, Condado de Jo Daviess, Condado han Jo Daviess, Contea di Jo Daviess, Dzho Dejvis, Dzho-Dejviss, Hrabstwo Jo Daviess, Jo Daviess, Jo Daviess Comitatus, Jo Daviess Kun, Jo Daviess Kūn, Jo Daviess konderria, Jo Daviess megye, Jo Devies srjan, Okrug DZo Dejvis, Quan Jo Daviess, Quận Jo Daviess, jo debhisa ka'unti, jodeibisu jun, mqatʿt jw dafys, qiao dai wei si xian, shhrstan jw dwys aylynwy, Джо Дейвис, Джо-Дейвисс, Джо-Дейвісс, Округ Џо Дејвис, Ջո Դեվիես շրջան, جو ڈیوس کاؤنٹی, جو ڈیویس کاؤنٹی، الینوائے, شهرستان جو دویس، ایلینوی, مقاطعة جو دافيس, জো ডেভিস কাউন্টি, ジョーデイビース郡, 喬戴維斯縣

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Naperville 147,986 The second most populous city in Illinois.