On its age, its old homes and the National Register, Williams Township is more historic than 76% of U.S. towns, #215 of 768 in Illinois. All 2 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 Williams 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 Williams Township’s 5.8 sits above most of its state (77% of Illinois towns have fewer) while its 2 historic buildings outnumber those of 60% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±8.1 points).
Founding year: our sources. 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 Williams Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners, places now gone and burying grounds
Three other post offices opened and closed inside today’s town.
Barclay
1872–1915
Vanwood
1898–1900
Selbytown
1900–1912
18701950today
Hamlets and corners on the map
BarclayKnollwoodVan Wood
Gone or out of use
Bice SchoolschoolLocust Lane SchoolschoolSangamo Center Schoolschool
3cemeteries and burying grounds inside Williams Township
BiceStewartWolf Creek
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Williams Township on the map, 1907 to 1971
Every edition of the U.S. Geological Survey’s map of Williams 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 Williams Township.
The story so far
Williams Township, in brief
Wikipedia doesn’t have a history of Williams Township yet. The photos, dates and memories neighbors add here are how it gets written.
Williams Township is located in Sangamon County, Illinois. As of the 2010 census, its population was 3,446 and it contained 1,332 housing units.
Its population held steady between the last two censuses: 3,446 in 2010, 3,451 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Williams Township, 1872 to 1915
Woven from the archive, old maps, post office records, the National Register and the people born here.
Williams Township is more historic than 76% of U.S. towns, #215 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 Williams Township?
16% of Williams Township’s homes were built before 1940 (Census estimate, ±8.1 points), against a typical 11% for an Illinois town; the median home was built in 1991.
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 (2), U.S. Geological Survey historical maps, 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.