Capital Township, in brief
Wikipedia doesn’t have a history of Capital Township yet. The photos, dates and memories neighbors add here are how it gets written.
Between the 2010 and 2020 censuses its population fell from 115,756 to 112,219 (-3%).
Each edition grades its towns against each other only.
More historic than 87% of U.S. towns · #104 of 768 in Illinois. What drives it
44 places in town are on the National Register. Below: maps from 1907 on.
More historic than 87% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Capital Township is more historic than 87% of U.S. towns, #104 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.
Among the 400 U.S. cities of 100,000 or more, Capital Township ranks #83 on History.
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 Capital Township’s 7.1 sits above most of its state (80% of Illinois towns have fewer) while its 79 historic buildings outnumber those of 88% of U.S. towns.
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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
The country’s official list of buildings and places worth saving. 5 are National Historic Landmarks, the highest tier.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
The first neighbors to add old photos shape how Capital Township’s history is told.
Every edition of the U.S. Geological Survey’s map of Capital Township. Tap a year, or press play to watch the town change.

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Capital Township.
Wikipedia doesn’t have a history of Capital Township yet. The photos, dates and memories neighbors add here are how it gets written.
Between the 2010 and 2020 censuses its population fell from 115,756 to 112,219 (-3%).
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Each neighbor’s History grade, on the same three inputs.
Capital Township is more historic than 87% of U.S. towns, #104 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.
18% of Capital Township’s homes were built before 1940 (Census estimate), against a typical 11% for an Illinois town; the median home was built in 1972.
What the archives can’t tell you, neighbors can.
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 U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.





1907Springfield sheet · 1:62,500