Vandalia dates to 1819, and 32% of its homes were built before 1940
More historic than 90% of U.S. towns · #68 of 768 in Illinois. What drives it
Its Register listings are the Little Brick House, the Vandalia Statehouse and the First Presbyterian Church. Below: 7 old photos and papers, maps from 1886 on, and the census since 1850.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1820.The full story ↓
History grade
What drives Vandalia’s History grade
On its age, its old homes and the National Register, Vandalia is more historic than 90% of U.S. towns, #68 of 768 in Illinois. All 3 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its National Register listings lowest.
A
HistoryA character grade: shown, never part of Vandalia’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 Vandalia’s 5.2 sits above most of its state (76% of Illinois towns have fewer) while its 3 listings outnumber those of 65% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from A− to A. The pre-1940 share is a Census survey estimate (±4.7 points). Two sources give 1819.
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 Vandalia’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
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.
Vandalia was founded in 1819 as a new capital city for Illinois. The previous capital, Kaskaskia, was unsuitable because it was on the south-east border of the new state and under the constant threat of flooding. The more centrally located townsite, located in Bond County at the time, was hastily prepared for the 1820 meeting of the Illinois General Assembly. In 1821, Fayette County was created, including Vandalia.
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.
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 1819, according to Wikidata and Wikipedia’s history of the town. Vandalia’s post office opened in 1820, and the census of 1850 counted 419 people here.
How does Vandalia rank for history?
Vandalia is more historic than 90% of U.S. towns, #68 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 Vandalia?
Three places: the Little Brick House (listed 1973), the Vandalia Statehouse (1974) and the First Presbyterian Church (1982).
How old are the homes in Vandalia?
32% of Vandalia’s homes were built before 1940 (Census estimate, ±4.7 points), against a typical 11% for an Illinois town; the median home was built in 1955.
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 (10), the Library of Congress (2), the National Register of Historic Places (3), 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.
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