Grand Detour, Illinois
Grand Detour: Census-designated place in Illinois, USA
About
Grand Detour is a CDP located in the county of Ogle in the U.S. state of Illinois. Its population at the 2010 census was 698 and a population density of 191 people per km². After 10 years in 2020 city had an estimated population of 652 inhabitants.
Quick Facts about Grand Detour
| Population | 652 (2020) |
| Country | United States of America |
| State | Illinois (United States) |
| County | Ogle County |
| Postal code | 61021 |
| Phone Area Codes | 815 |
| Area | 3.66 km2 |
| Latitude & Longitude | 41.8967,-89.4118 |
| Altitude | 2,152 feet / 656 meters |
| Time Zone | America/Chicago |
| Local time | 07:03:39 (11th April 2026) |
| Density | 178 Pop. per km² as of 2020 |
| Population growth | -7.06% (2010-2020) |
Geography
Grand Detour is located at 41°53'48"N 89°24'42"W (41.8967000, -89.4117700).
Grand Detour map
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Demographics
According to census records, the population of Grand Detour decreased by 7.06% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 698 | - | census |
| 2011 | 687 | -1.6% | estimation process |
| 2012 | 684 | -0.44% | estimation process |
| 2013 | 679 | -0.74% | estimation process |
| 2014 | 675 | -0.59% | estimation process |
| 2015 | 669 | -0.9% | estimation process |
| 2016 | 665 | -0.6% | estimation process |
| 2017 | 663 | -0.3% | estimation process |
| 2018 | 660 | -0.45% | estimation process |
| 2019 | 657 | -0.46% | estimation process |
| 2020 | 652 | -0.77% | estimation process |
Nearby Schools and Colleges
Schools and campuses linked to Grand Detour, IL. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 148672 | Sauk Valley Community College | Dixon (IL) | 61021-9112 |
Nearby Transit Stations (12)
Rail and bus stations connected to Grand Detour, IL. Select a station to open its map and address details.
| Code | Name | Address | Type |
|---|---|---|---|
| MDT | Mendota station | 783 Main Street | RAIL |
| RCK | Rockford, Illinois | 7559 Walton St. | BUS |
| PCT | Princeton | 107 Bicentennial Dr. | RAIL |
| BET | South Beloit, Illinois | 15766 Manchester Road | BUS |
| PLO | Plano | 101 West Main Street | RAIL |
Closest post offices linked to Grand Detour.
| Post Office Name | City | ZIP |
|---|---|---|
| Nachusa Post Office | Nachusa (IL) | 61057 |
Other cities in Ogle County
Cities, towns, neighborhoods & other populated places in Ogle County , IL. (more)
| City Name | Population | Title |
|---|---|---|
| Flagg | 12,745 | City in Illinois, United States of America |
| Rochelle | 8,975 | City in Ogle County, Illinois, United States |
| Byron | 3,650 | City in Ogle County, Illinois, United States |
| Oregon | 3,449 | City in Ogle County, Illinois, United States |
| Mount Morris | 2,776 | Village in Illinois |
| Davis Junction | 2,344 | City in Illinois, United States of America |
| Polo | 2,158 | Town in Illinois, USA |
| Honey Creek | 1,437 | Township in Adams County, Illinois |
| Forreston | 1,338 | City in Illinois, United States of America |
| Hillcrest | 1,216 | City in Illinois, United States of America |
| Stillman Valley | 1,043 | Valley in Texas, United States of America |
| White Rock | 684 | Unincorporated community in Illinois |
| Creston | 642 | City in Illinois, United States of America |
| Maryland | 500 | Township of Illinois |
| Monroe Center | 429 | City in United States of America |
| Leaf River | 403 | Township of Ogle County, Illinois, US |