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BHistory
History · Eagle Township

Eagle Township’s post office opened in 1844, and 19% of its homes were built before 1940

More historic than 61% of U.S. towns. What drives it

1844first post office
0on the National Register
19%homes built before 1940
Quick answers

How Eagle Township began

When was Eagle Township founded?

1844

The Eagle Township post office opened in 1844, the earliest record of the town by name. Three smaller post offices, Eagle (1844), Lock (1860) and Wilsman (1890), opened inside today’s town and later closed.

2020 census: 1,599182 years

How historic is Eagle Township?

B

More historic than 61% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Eagle Township post office (Blevins & Helbock, CC0).
History grade

What drives Eagle Township’s History grade

On its age, its old homes and the National Register, Eagle Township is more historic than 61% of U.S. towns. Its age holds the grade up; its National Register listings pull it down.

B
HistoryA character grade: shown, never part of Eagle Township’s overall grade.
All U.S. towns we grade (21,289)Ahead of 61%
NewerOlder

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 Eagle Township’s 0.0 sits below most of its state (28% of Illinois towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from B− to A−. The pre-1940 share is a Census survey estimate (±5.7 points). The founding year is the first post office, not a stated founding date.

Founding year: the first post office (other dates in Quick answers). 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 →

What stands out about Eagle Township’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Eagle Township’s collection

The first neighbors to add old photos shape how Eagle Township’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Three other post offices opened and closed inside today’s town.

Eagle
1844–1867
Lock
1860–1872
Wilsman
1890–1903
18401930today
Hamlets and corners on the map
AltmarWilsman
Gone or out of use
Conness SchoolschoolCraft SchoolschoolHoarty SchoolschoolLock SchoolschoolMoon Schoolschool
2cemeteries and burying grounds inside Eagle Township
LostlandsNaramour

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Timeline

Eagle Township, 1844 to 1903

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1844Post officeThe Eagle post office opens
  3. 1860Post officeThe Lock post office opens
  4. 1867Post officeThe Eagle post office closes
  5. 1872Post officeThe Lock post office closes
  6. 1890Post officeThe Wilsman post office opens
  7. 20th century
  8. 1903Post officeThe Wilsman post office closes
The story so far

Eagle Township, in brief

Wikipedia doesn’t have a history of Eagle Township yet. The photos, dates and memories neighbors add here are how it gets written.

Eagle Township is located in LaSalle County, Illinois. As of the 2020 census, its population was 1,599 and it contained 724 housing units.

Its first post office opened in 1844. Between the 2010 and 2020 censuses its population fell from 1,697 to 1,599 (-6%).

Intro from Wikipedia. Population: U.S. Census Bureau.

By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
Add from your album
Famous people

Famous people close to Eagle Township

Nobody well known was born in Eagle Township itself, so here are the best known from just nearby.

See all →
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Eagle Township’s history

What year was Eagle Township founded?

The Eagle Township post office opened in 1844, the earliest record of the town by name (U.S. post office records).

How does Eagle Township rank for history?

Eagle Township is more historic than 61% of U.S. towns. 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.

How old are the homes in Eagle Township?

19% of Eagle Township’s homes were built before 1940 (Census estimate, ±5.7 points), against a typical 11% for an Illinois town; the median home was built in 1957.

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

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 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.