Bourbonnais Township dates to 1832, and 1 of its places is on the National Register
More historic than 64% of U.S. towns · #303 of 768 in Illinois. What drives it
Most of Bourbonnais Township was built recently: 5% of its homes predate 1940 and the median home dates from 1978. Below: 2 old photos and papers, maps from 1922 on, and the census since 1900.
Founding year: Wikidata. First post office: 1838.The full story ↓
History grade
What drives Bourbonnais Township’s History grade
On its age, its old homes and the National Register, Bourbonnais Township is more historic than 64% of U.S. towns, #303 of 768 in Illinois. Its age holds the grade up; its share of homes from before 1940 pulls it down.
B
HistoryA character grade: shown, never part of Bourbonnais 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 Bourbonnais Township’s 1.3 sits near the middle of its state (64% of Illinois towns have fewer) while its 5 historic buildings outnumber those of 70% of U.S. towns.
NoteThe founding year comes from Wikidata alone; no second source gives 1832.
How sure. Graded on any two of the three inputs instead, the letter would range from B− to A−. The pre-1940 share (±1.3 points) is firm at this size.
Founding year: Wikidata (other dates in Quick answers). 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 Bourbonnais 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 Bourbonnais Township. Tap a year, or press play to watch the town change.
1922Kankakee 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 Bourbonnais Township.
Timeline
Bourbonnais Township, 1832 to 1922
Woven from the archive, old maps, post office records, the National Register and the people born here.
The village is named for François Jace Bourbonnais père, a fur trapper, hunter and agent of the American Fur Company, who had married a Native American woman and arrived in the area near the fork of two major Indian trails and the Kankakee River circa 1830. John Jacob Astor had founded the company in 1808, and when the United States banned foreign (i.e. British and Canadian) companies (such as the Hudson's Bay Company) from competing in the country after the War of 1812, it flourished. By 1830 it had a near monopoly of fur trading in the midwest, but the number of local trappable wild animals had declined.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
In 1832, according to Wikidata. Bourbonnais Township’s post office opened in 1838, and the census of 1900 counted 595 people here.
How does Bourbonnais Township rank for history?
Bourbonnais Township is more historic than 64% of U.S. towns, #303 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 Bourbonnais Township?
5% of Bourbonnais Township’s homes were built before 1940 (Census estimate, ±1.3 points), against a typical 11% for an Illinois town; the median home was built in 1978.
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 Wikimedia Commons (5), the Library of Congress (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.