Springfield Township dates to 1821, and 22% of its homes were built before 1940
More historic than 92% of U.S. towns · #51 of 768 in Illinois. What drives it
5 places in town are on the National Register, among them a historic district with 62 buildings. Below: 9 old photos and papers, maps from 1907 on, and the census since 1840.
On its age, its old homes and the National Register, Springfield Township is more historic than 92% of U.S. towns, #51 of 768 in Illinois. All 3 inputs are above most U.S. towns; its National Register listings ranks highest and its share of homes from before 1940 lowest.
A
HistoryA character grade: shown, never part of Springfield 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 Springfield Township’s 118 sits above most of its state (94% of Illinois towns have fewer) while its 65 historic buildings outnumber those of 87% of U.S. towns.
NoteThe founding year comes from Wikidata alone; no second source gives 1821.
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 (±6.2 points).
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 Springfield Township’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.
On the map
Springfield Township on the map, 1907 to 1998
Every edition of the U.S. Geological Survey’s map of Springfield Township. Tap a year, or press play to watch the town change.
1907Springfield 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 Springfield Township.
Timeline
Springfield Township, 1821 to 1907
Woven from the archive, old maps, post office records, the National Register and the people born here.
Settlers originally named this community "Calhoun", after Senator John C. Calhoun of South Carolina, expressing their cultural ties. The land that Springfield now occupies was visited first by trappers and fur traders who came to the Sangamon River in 1818.
In 1821, according to Wikidata. the census of 1840 counted 2,579 people here.
How does Springfield Township rank for history?
Springfield Township is more historic than 92% of U.S. towns, #51 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 Springfield Township?
5 listings: 3 buildings, among them the Camp Lincoln Commissary Building (listed 1984, the first), and 1 historic district, the Illinois State Fairgrounds, with 62 contributing buildings. 65 historic buildings in all.
How old are the homes in Springfield Township?
22% of Springfield Township’s homes were built before 1940 (Census estimate, ±6.2 points), against a typical 11% for an Illinois town; the median home was built in 1958.
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 (1), the Library of Congress (8), Wikidata (3), the National Register of Historic Places (4), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.