Half of Sefton Township’s homes were built after 1985
Most of Sefton Township was built recently: 3% of its homes predate 1940 and the median home dates from 1985. Below: maps from 1941 on and the census since 2000.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Sefton Township, in brief
Wikipedia doesn’t have a history of Sefton Township yet. The photos, dates and memories neighbors add here are how it gets written.
Sefton Township is one of twenty townships in Fayette County, Illinois, USA. As of the 2020 census, its population was 559 and it contained 253 housing units.
Between the 2010 and 2020 censuses its population fell from 599 to 559 (-7%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Sefton Township, 1861 to 1953
Woven from the archive, old maps, post office records, the National Register and the people born here.
Every edition of the U.S. Geological Survey’s map of Sefton Township. Tap a year, or press play to watch the town change.
1941St Elmo 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 Sefton Township.
People over time
Sefton Township, census by census
Between 559 and 599 people in every census since 2000.
3 censuses, 2000–2020.
U.S. Census Bureau decennial counts, from the census table on Sefton Township’s Wikipedia page.
Stories next door
History across the town line
Each neighbor’s History grade, on the same three inputs.
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 U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.