Half of Aux Sable Township’s homes were built after 2004
More historic than 14% of U.S. towns · #694 of 768 in Illinois. What drives it
Most of Aux Sable Township was built recently: 3% of its homes predate 1940 and the median home dates from 2004. Below: maps from 1892 on and the census since 2000.
On its age, its old homes and the National Register, Aux Sable Township is more historic than 14% of U.S. towns, #694 of 768 in Illinois. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
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HistoryA character grade: shown, never part of Aux Sable Township’s overall grade.
Few Illinois towns list much on the Register (a typical Illinois town has 0.5 per 10,000 residents, the U.S. 2.4), so Aux Sable Township’s 0.0 sits below most of its state (28% of Illinois towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±2.3 points) is firm at this size.
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Aux Sable Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Aux Sable Township. Tap a year, or press play to watch the town change.
1892Morris sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Aux Sable Township.
The story so far
Aux Sable Township, in brief
Wikipedia doesn’t have a history of Aux Sable Township yet. The photos, dates and memories neighbors add here are how it gets written.
Aux Sable Township (T34N R8E) is one of seventeen townships in Grundy County, Illinois, United States. As of the 2020 census, its population was 15,361 and it contained 5,184 housing units.
Between the 2010 and 2020 censuses its population grew from 13,061 to 15,361 (+18%).
Intro from Wikipedia. Population: U.S. Census Bureau.
From the old history books
What they wrote about Aux Sable Township in 1914
Passages that mention Aux Sable Township, cut from the printed page as they were published.
Historical encyclopedia of Illinois /cedited by Newton Bateman, Paul Selby,1914Read the page →
Read the text
After his marriage, David C. Tabler spent two years in Saratoga Township, and returning to Aux Sable Township, rented land until 1860. In that year he and his brother Nathaniel bought 120 acres in Aux Sable Township, operating it iir partnership for ten years. At that time they divided the property, to which they had added.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
Timeline
Aux Sable Township, 1859 to 1892
Woven from the archive, old maps, post office records, the National Register and the people born here.
Aux Sable Township is more historic than 14% of U.S. towns, #694 of 768 in Illinois. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Aux Sable Township?
3% of Aux Sable Township’s homes were built before 1940 (Census estimate, ±2.3 points), against a typical 11% for an Illinois town; the median home was built in 2004.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
