Geneva dates to 1835, and 10% of its homes were built before 1940
More historic than 86% of U.S. towns · #120 of 768 in Illinois. What drives it
8 places in town are on the National Register, among them three historic districts with 430 buildings between them. Below: 18 old photos and papers, maps from 1885 on, and the census since 1860.
Founding year: Wikidata. First post office: 1850.The full story ↓
History grade
What drives Geneva’s History grade
On its age, its old homes and the National Register, Geneva is more historic than 86% of U.S. towns, #120 of 768 in Illinois. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
A
HistoryA character grade: shown, never part of Geneva’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 Geneva’s 205 sits above most of its state (96% of Illinois towns have fewer) while its 435 historic buildings outnumber those of 97% 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 (±2.5 points) is firm at this size. Two sources give 1835.
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 Geneva’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Every building
Geneva, building by building, 1885–1923
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
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.
Two Native American trails crossed through Geneva. The Potawatomi people lived in the Geneva area, with their main chief, Waubonsee, leading a group that gathered just north of Aurora.
In 1835, according to Wikidata. Geneva’s post office opened in 1850, and the census of 1860 counted 997 people here.
How does Geneva rank for history?
Geneva is more historic than 86% of U.S. towns, #120 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 Geneva?
8 listings: 4 buildings, 3 historic districts, the Central Geneva Historic District, the North Geneva Historic District and the Riverbank Laboratories, with 430 contributing buildings, and 1 structure. 435 historic buildings in all.
How old are the homes in Geneva?
10% of Geneva’s homes were built before 1940 (Census estimate, ±2.5 points), against a typical 11% for an Illinois town; the median home was built in 1987.
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 (14), the Library of Congress (4), the National Register of Historic Places (8), 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), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.