Each edition grades its towns against each other only.
More historic than 74% of U.S. towns · #229 of 768 in Illinois. What drives it
1 place in town is on the National Register. Below: maps from 1905 on.
More historic than 74% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, East Eldorado Township is more historic than 74% of U.S. towns, #229 of 768 in Illinois. All 2 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its National Register listings lowest.
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 East Eldorado Township’s 1.9 sits above most of its state (66% of Illinois towns have fewer) while its 1 listings outnumber those of 51% 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 first neighbors to add old photos shape how East Eldorado Township’s history is told.
Wikipedia doesn’t have a history of East Eldorado Township yet. The photos, dates and memories neighbors add here are how it gets written.
East Eldorado Township is located in Saline County, Illinois. As of the 2010 census, its population was 5,906 and it contained 2,859 housing units.
Between the 2010 and 2020 censuses its population fell from 5,906 to 5,431 (-8%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Woven from the archive, old maps, post office records, the National Register and the people born here.
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of East Eldorado 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 East Eldorado Township.
The country’s official list of buildings and places worth saving.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Nobody well known was born in East Eldorado Township itself, so here are the best known from just nearby.
Another post office, Wasson, opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Each neighbor’s History grade, on the same three inputs.
East Eldorado Township is more historic than 74% of U.S. towns, #229 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.
20% of East Eldorado Township’s homes were built before 1940 (Census estimate, ±4.1 points), against a typical 11% for an Illinois town; the median home was built in 1962.
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, 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.
