31% of Corwin Township’s homes were built before 1940
Its Register listing is the Nathan C. Ricker House. Its Register listing is the Nathan C. Ricker House. Below: maps from 1948 on and the census since 2000.
Wikipedia doesn’t have a history of Corwin Township yet. The photos, dates and memories neighbors add here are how it gets written.
Corwin Township is located in Logan County, Illinois. As of the 2020 census, its population was 608 and it contained 285 housing units. Corwin Township changed its name from Middletown Township on an unknown date.
Between the 2010 and 2020 censuses its population fell from 643 to 608 (-5%).
Intro from Wikipedia. Population: U.S. Census Bureau.
From the old history books
What they wrote about Corwin Township in 1886
Passages that mention Corwin Township, cut from the printed page as they were published.
History of Logan County, Illinois1886 · page 866Read the page →
Read the text
Sheridan Township, in the western tier of townships, is bounded as follows: On the north by Prairie Creek Township, on the east by West Lincoln Township, on the south by Corwin Township, and on the west by Mason County. It is drained by Sugar Creek, flowing west, and crossed in nearly the same direction by the Champaign & Havana Line, with two stations, Burton View and New Holland. At the former place is no village — merely a postoffice and railroad station.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
The U.S. Geological Survey’s map of Corwin Township.
1948Mason City 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 Corwin Township.
On the National Register
1 historic place in Corwin Township
The country’s official list of buildings and places worth saving.
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). How TownRatings grades history →
From Wikimedia Commons (1), the National Register of Historic Places (1), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
2026
