Grundy County, Illinois
Grundy County: County in Illinois, United States
About
Grundy County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 50,063 and a population density of 45 people per km². After 10 years in 2020 county had an estimated population of 50,993 inhabitants. Its county seat is Morris. The county was created 184 years ago in 1841.
Quick Facts about Grundy County
| Population : | 50,993 (2020) |
| Country : | United States of America |
| State : | Illinois (United States) |
| Different from : | Grundy County, Grundy County, Grundy County |
| Area : | 1115 km2 |
| Water as percent of area : | 2.9% |
| Land as percent of area : | 97.1% |
| Named for : | Felix Grundy |
| Altitude : | 568 feet / 173 meters |
| Capital : | Morris |
| Establishment : | February 02, 1841 |
| Time Zone : | America/Chicago |
| Local time : | 17:13:23 (22nd February 2025) |
| Density : | 46 Pop. per km² as of 2020 |
| Population growth : | 1.82% (2010-2020) |
Geography
Grundy County is located at 41°17'6"N 88°25'7"W (41.2850900, -88.4185000). It has 4 neighbors: Kankakee County, La Salle County, Livingston County and Will County.
Grundy County map
icon to open full mode. View satellite images
The largest city of Grundy County is Morris with a population of 15,162. Other cities include, Minooka population 11,456, Wauponsee population 2,329, South Wilmington population 637 and Carbon Hill population 334. See all Grundy County cities & populated places.
Grundy County Populated Places
Cities, towns, neighborhoods & other populated places in Grundy County.
| City Name | Population | Title |
|---|---|---|
| Morris | 15,162 | City in Illinois |
| Aux Sable | 13,493 | Township in Grundy County, Illinois |
| Minooka | 11,456 | City in Illinois, United States of America |
| Coal City | 5,351 | Village in United States of America |
| Diamond | 2,484 | Village in Illinois, USA |
| Wauponsee | 2,329 | Unincorporated community in Illinois |
| Mazon | 1,860 | Village in the United States |
| Gardner | 1,377 | Village in Illinois, United States |
| Braceville | 709 | Township in Grundy County, Illinois |
| South Wilmington | 637 | Human settlement in Illinois, United States of America |
| Nettle Creek | 484 | Township in Grundy County, Illinois |
| Carbon Hill | 334 | Human settlement in Illinois, United States of America |
| Verona | 208 | Village in Illinois, United States |
| East Brooklyn | 104 | Village in Illinois, United States |
| Kinsman | 96 | Village in Illinois, United States |
- Official Website
Official website of Grundy County
Grundy County has 4 neighbours.
- Kankakee County county in Illinois, United States
- LaSalle County county in Illinois, United States
- Livingston County county in Illinois, United States of America
- Will County county in Illinois, United States
Demographics
The population of Grundy County increased by 1.82% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 50,063 | - | census |
| 2011 | 50,099 | 0.07% | estimation process |
| 2012 | 50,160 | 0.12% | estimation process |
| 2013 | 50,187 | 0.05% | estimation process |
| 2014 | 50,287 | 0.2% | estimation process |
| 2015 | 50,363 | 0.15% | estimation process |
| 2016 | 50,317 | -0.09% | estimation process |
| 2017 | 50,622 | 0.6% | estimation process |
| 2018 | 50,973 | 0.69% | estimation process |
| 2019 | 51,054 | 0.16% | estimation process |
| 2020 | 50,993 | -0.12% | estimation process |
People born in Grundy County (2)
People born in Grundy County, including middle and long distance runner Frank Verner, Carlos Avery, .
List
Other places with the same name (4)
- Grundy County , Tennessee county in Tennessee, United States with a population of 13,485 people.
- Grundy County , Iowa county in Iowa, United States with a population of 12,217 people.
- Grundy County , Missouri county in Missouri, United States with a population of 9,595 people.
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. |
