Founding year: Wikidata. First post office: 1823.The full story ↓
History grade
What drives Peoria City Township’s History grade
On its age, its old homes and the National Register, Peoria City Township is more historic than 98% of U.S. towns, #14 of 768 in Illinois. All 3 inputs are above most U.S. towns; its age ranks highest and its share of homes from before 1940 lowest.
A+
HistoryA character grade: shown, never part of Peoria City 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 Peoria City Township’s 40.0 sits above most of its state (90% of Illinois towns have fewer) while its 387 historic buildings outnumber those of 96% of U.S. towns.
NoteThe founding year comes from Wikidata alone; no second source gives 1680.
How sure. Graded on any two of the three inputs instead, the letter would range from A to A+. The pre-1940 share (±1.8 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 Peoria City Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
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.
Peoria was the earliest permanent European settlement in what is now Illinois; French explorers first established a presence along the Illinois River in the late 17th century, with the community later evolving into the modern city. The lands that eventually would become Peoria were first settled by Europeans in 1680, when French explorers René-Robert Cavelier, Sieur de La Salle and Henri de Tonti constructed Fort Crevecoeur. This fort burned to the ground, and in 1813, Fort Clark, Illinois was built. When the County of Peoria was organized in 1825, Fort Clark was officially named Peoria.
Every edition of the U.S. Geological Survey’s map of Peoria City Township. Tap a year, or press play to watch the town change.
1927Peoria 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 Peoria City Township.
Then & now
Stand where they stood
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Retake this viewSpaldings Floating Palace ad 1857, 1857
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Peoria City Township’s page.
In 1680, according to Wikidata. Peoria City Township’s post office opened in 1823, and the census of 1840 counted 1,467 people here.
How does Peoria City Township rank for history?
Peoria City Township is more historic than 98% of U.S. towns, #14 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 Peoria City Township?
23% of Peoria City Township’s homes were built before 1940 (Census estimate, ±1.8 points), against a typical 11% for an Illinois town; the median home was built in 1962.
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 (18), the Library of Congress (2), Wikidata (2), Wikipedia, U.S. Geological Survey historical maps and U.S. Census counts (via Wikipedia). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.