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 199 years ago in 1826.
County Snapshot
Jo Daviess County at a glance
Jo Daviess County currently has 14 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
14
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Illinois counties
102
Open related pagesLargest city
GalenaPopulation 3,151
Top linked places
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% |
| Latitude & Longitude | 42.3657,-90.2124 |
| Named for | Joseph Hamilton Daveiss |
| Altitude | 741 feet / 226 meters |
| Capital | Galena |
| Establishment | January 01, 1827 |
| Time Zone | America/Chicago |
| Local time | 17:08:56 (14th April 2026) |
| Density | 13 Pop. per km² as of 2020 |
| Population growth | -6.78% (2010-2020) |
| Weather | 79℉ Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 7-days weather |
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, Warren population 1,300 and Guilford population 1,144. 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 |
Weather
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is...
7-Day ForecastOfficial website of Jo Daviess County
Official WebsiteDemographics
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 |
Illinois Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Cook County | 5,108,284 | County in Illinois, United States |
| Chicago | 2,677,643 | The third most populous city in the United States and the center of the Chicago metropolitan area. |
| 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 |
| 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 | The second most populous city in Illinois. |
| 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 |
| Naperville | 147,986 | The second most populous city in Illinois. |