More historic than 3% of U.S. towns · #759 of 768 in Illinois. What drives it
Most of Rosemont was built recently: 0.9% of its homes predate 1940 and the median home dates from 1971. Below: 1 old photo or paper, maps from 1900 on, and the census since 1960.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1886.
History grade
What drives Rosemont’s History grade
On its age, its old homes and the National Register, Rosemont is more historic than 3% of U.S. towns, #759 of 768 in Illinois. Its National Register listings hold the grade up; its age pulls it down.
D−
HistoryA character grade: shown, never part of Rosemont’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 Rosemont’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 any two of the three inputs instead, the letter would range from D− to D. The pre-1940 share (±0.9 points) is firm at this size. Two sources give 1956.
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 Rosemont’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 Rosemont. Tap a year, or press play to watch the town change.
1900Riverside 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 Rosemont.
The story so far
Rosemont, in brief
Wikipedia doesn’t have a history of Rosemont yet. The photos, dates and memories neighbors add here are how it gets written.
Rosemont is a village in Cook County, Illinois, United States, located immediately northwest of Chicago. As of the 2020 census, the village had a population of 3,952. The village was incorporated in 1956, though it had been settled long before that. While Rosemont's land area and population are relatively small among municipalities in the Chicago metropolitan area, the village is a major center for commercial activity in the region and is a key component of the Golden Corridor. It contains Allstate Arena, which hosts the Chicago Wolves AHL hockey team. The AUSL Chicago Bandits are also located in Rosemont. Since its founding, the village has been governed by one family, and has been describ…
Rosemont was established in 1956. Between the 2010 and 2020 censuses its population fell from 4,202 to 3,952 (-6%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Rosemont, 1880 to 1996
Woven from the archive, old maps, post office records, the National Register and the people born here.
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 1956, according to Wikidata and Wikipedia’s history of the town. Rosemont’s post office opened in 1886, and the census of 1960 counted 978 people here.
How does Rosemont rank for history?
Rosemont is more historic than 3% of U.S. towns, #759 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 Rosemont?
0.9% of Rosemont’s homes were built before 1940 (Census estimate), against a typical 11% for an Illinois town; the median home was built in 1971.
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 (6), Wikidata and Wikipedia for famous people, 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.
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