Each edition grades its towns against each other only.
Home to 2 places on the National Register of Historic Places.
Grand Detour Township’s median age is 54 years, above both the Illinois town median (40.7 years) and the median of U.S. towns (40.5 years). Its National Register listings include John Deere House and Shop and St. Peter’s Episcopal Church. Grand Detour Township has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Where Grand Detour Township beats most towns.
The archive holds 24 old photos and papers going back to 1910 and 3 maps from 1918 on.
2 places on the National Register of Historic Places.
Who provides power, water and the rest in Grand Detour Township, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
Ordered by what stands out in Grand Detour Township.
Most working residents leave Grand Detour Township for work: only 2% work in town. 2.1% of residents live below the poverty line in Grand Detour Township, where Illinois’ towns sit at 8.4% and U.S. towns at 9.6%. Since 2013, Grand Detour Township has added 44 jobs, to 130 in 2023.
| Grand Detour Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Below the poverty line | 2.1% | 8.4% | 9.6% |
| Working residents who work in town | 2.4% | 8.3% | 8% |
| Median household income | $76,000 | $83,000 | $80,000 |
| Average trip to work | 25 minutes | 26 minutes | 25 minutes |
Census LEHD 2023 · ACS
Expected storm and flood damage is lower than in 75% of U.S. communities.
FEMA National Risk Index · OpenFEMA
People 65 and older are 26% of residents (17% statewide); adults 18 to 34 are 16% of residents (23% statewide). 33% of adults 25 and older have a bachelor’s degree or more, vs 38% across Illinois.
38% women, 62% men
About 160 men for every 100 women (the survey’s margin: ±7.4 points). Across Illinois, 50.6% of residents are women. Among residents 45 to 54, 100% are men (IL 50%).
| Grand Detour Township | IL | U.S. | |
|---|---|---|---|
| Under 10 | 5.7% | 11.5% | 11.6% |
| 10 to 17 | 10.7% | 10.4% | 10.3% |
| 18 to 24 | 10.7% | 9.1% | 9.1% |
| 25 to 34 | 4.8% | 13.6% | 13.7% |
| 35 to 44 | 11.2% | 13.3% | 13.2% |
| 45 to 54 | 17.7% | 12.4% | 12.2% |
| 55 to 64 | 13.1% | 12.8% | 12.7% |
| 65 to 74 | 17.2% | 10% | 10.2% |
| 75 and older | 8.8% | 7% | 7% |
| No diploma | 9.8% | 9.5% | 10.4% |
| High school | 19.7% | 25.1% | 26% |
| Some college | 20% | 19.2% | 19.1% |
| Associate’s | 17.4% | 8.3% | 8.8% |
| Bachelor’s | 31.1% | 22.6% | 21.6% |
| Graduate | 2% | 15.3% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 600, single groups can be off by several points
Grand Detour Township has cold, snowy winters and pleasant summers. July afternoons reach 84°, January nights drop to 13° and about 32 inches of snow falls in a winter.
NOAA U.S. Climate Normals, 1991–2020
Grand Detour Township beats the Illinois average on 0 of 32 CDC measures and trails it on 9. 40% of adults have obesity in Grand Detour Township.
| Grand Detour Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Obesity (CDC PLACES) | 40% | 37% | 35% |
| High blood pressure (CDC PLACES) | 39% | 35% | 35% |
| Smoke cigarettes (CDC PLACES) | 16% | 13% | 14% |
| Diabetes (CDC PLACES) | 13% | 11% | 12% |
| What stands out | Grand Detour Township | IL |
|---|---|---|
| More adults with COPD | 8.7% | 6.3% |
| More older adults who have lost all their teeth | 13.5% | 10.3% |
| More smokers | 15.8% | 12.1% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
94% of Grand Detour Township households own their home.
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
Museums, parks, gardens and other places to visit around Grand Detour Township. Close and well known come first.
6 mi National Historic SiteRonald Reagan Boyhood Home National Historic Site
30 mi Stadium & arenaBMO Center
6 mi MuseumJohn Deere House and Shop
35 mi TheatreEgyptian Theatre, DeKalb
32 mi GardenAnderson Japanese Gardens
35 mi MuseumEllwood HouseRonald Reagan Boyhood Home National Historic Site: Teemu008 from Palatine, Illinois, CC BY-SA 2.0 · BMO Center: SimLibrarian, CC0 · John Deere House and Shop: IvoShandor, CC BY 2.5 · Egyptian Theatre, DeKalb: Andy McMurray, CC BY 2.5 · Anderson Japanese Gardens: M. Readey, CC BY-SA 3.0 · Ellwood House: Paul R. Burley, CC0
1 within 15 miles of the center of Grand Detour Township
About 6 of every 100 Grand Detour Township residents are enrolled in college, about the same as Illinois.
In a town this size, neighbors are the best guide. Ask them anything.
CDP in Illinois, United States
Grand Detour is an unincorporated census-designated place in Ogle County, Illinois, United States. As of the 2020 census, Grand Detour had a population of 424. The village is named after an odd turn in the Rock River, which flows north past the village, rather than its normal southwestern course. John Deere invented the steel plow in Grand Detour, and the John Deere House and Shop is a U.S. National Historic Landmark.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Grand Detour Township has fewer than 1,000 residents, too few for fair grades; the figures below are still real. Home to 2 places on the National Register of Historic Places.
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