Most of Eagle Creek Township was built recently: 0.0% of its homes predate 1940 and the median home dates from 2001. Below: maps from 1916 on and the census since 2000.
The Eagle Creek Township post office opened in 1836, the earliest record of the town by name. Three smaller post offices, Eagle Creek (1836), Leamington (1879) and Kedron (1883), opened inside today’s town and later closed.
First census: 194 in 20002020 census: 171190 years
Founding year: the first Eagle Creek Township post office (Blevins & Helbock, CC0).
What stands out about Eagle Creek Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
4cemeteries and burying grounds inside Eagle Creek Township
BarnettHillLeamingtonLloyd
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Eagle Creek Township on the map, 1916 to 1990
Every edition of the U.S. Geological Survey’s map of Eagle Creek Township. Tap a year, or press play to watch the town change.
1916Equality 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 Eagle Creek Township.
The story so far
Eagle Creek Township, in brief
Wikipedia doesn’t have a history of Eagle Creek Township yet. The photos, dates and memories neighbors add here are how it gets written.
Eagle Creek Township is one of ten townships in Gallatin County, Illinois, USA. As of the 2020 census, its population was 171 and it contained 96 housing units.
Its first post office opened in 1836. Between the 2010 and 2020 censuses its population fell from 187 to 171 (-9%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Eagle Creek Township, 1836 to 1916
Woven from the archive, old maps, post office records, the National Register and the people born here.
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.