Berwyn’s post office opened in 1891, and 61% of its homes were built before 1940
More historic than 91% of U.S. towns · #62 of 768 in Illinois. What drives it
7 places in town are on the National Register, among them a historic district with 1,915 buildings. Below: 4 old photos and papers, maps from 1891 on, and the census since 1910.
The Berwyn post office opened in 1891, the earliest record of the town by name. Wikidata gives 1908. Another post office, Lavergne (1891), opened inside today’s city and later closed.
First census: 5,841 in 19102020 census: 57,250135 years
How historic is Berwyn?
A
More historic than 91% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Berwyn post office (Blevins & Helbock, CC0). Wikidata: 1908.The full story ↓
History grade
What drives Berwyn’s History grade
On its age, its old homes and the National Register, Berwyn is more historic than 91% of U.S. towns, #62 of 768 in Illinois. Its share of homes from before 1940 holds the grade up; its age pulls it down.
A
HistoryA character grade: shown, never part of Berwyn’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 Berwyn’s 346 sits above most of its state (98% of Illinois towns have fewer) while its 1,922 historic buildings outnumber those of 99% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B+ to A+. The pre-1940 share is a Census survey estimate (±3.3 points). The founding year is the first post office, not a stated founding date; Wikidata gives 1908.
Founding year: the first post office (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 Berwyn’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Before being settled, the land that is now Berwyn was traversed by Native American trails. The most important trails converged near the Chicago portage, and two notable routes crossed what is today Berwyn. A branch of the Trail to Green Bay crossed Berwyn at what is now Riverside Drive, and the Ottawa Trail spanned the southern end of the city.
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.
The Berwyn post office opened in 1891, the earliest record of the town by name (U.S. post office records). Wikidata gives 1908.
How does Berwyn rank for history?
Berwyn is more historic than 91% of U.S. towns, #62 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.
What is on the National Register in Berwyn?
7 listings: 6 buildings, among them the Arthur J. Dunham House (listed 1982, the first), and 1 historic district, the Central Berwyn Bungalow Historic District, with 1,915 contributing buildings. 1,922 historic buildings in all.
How old are the homes in Berwyn?
61% of Berwyn’s homes were built before 1940 (Census estimate, ±3.3 points), against a typical 11% for an Illinois town; the median home was built in 1938.
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 (22), the Library of Congress (1), Wikidata (1), the National Register of Historic Places (7), Wikipedia, 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.