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B−History
History · Oblong

Oblong’s post office opened in 1852, and 26% of its homes were built before 1940

More historic than 46% of U.S. towns. What drives it

Below: 1 old photo or paper from 1958 on.

1852first post office
0on the National Register
26%homes built before 1940
1old photo or paper
1famous people
Photo: Nyttend · Public domain
Quick answers

How Oblong began

When was Oblong founded?

1852

The Oblong post office opened in 1852, the earliest record of the town by name. Wikidata gives 1883.

2020 census: 1,371174 years

How historic is Oblong?

B−

More historic than 46% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Oblong post office (Blevins & Helbock, CC0). Wikidata: 1883.The full story ↓
History grade

What drives Oblong’s History grade

On its age, its old homes and the National Register, Oblong is more historic than 46% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.

B−
HistoryA character grade: shown, never part of Oblong’s overall grade.
All U.S. towns we grade (21,289)Ahead of 46%
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 Oblong’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 C− to B. The pre-1940 share is a Census survey estimate (±7.3 points). The founding year is the first post office, not a stated founding date; Wikidata’s 1883 falls in the same era, so the grade doesn’t depend on which one is used.

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 Oblong’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 Oblong’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
1 of 10 decades. The empty ones are waiting for someone’s album.
The story

How Oblong came to be

From Wikipedia’s history of Oblong.

Read it all →

Oblong was incorporated in 1883. The original town site was on a naturally occurring oblongular prairie, hence the name. The crossroads at the town site was the location of a general store owned by Henry Peck. The prominent sign "Hen. Peck" gave rise to the village's original moniker, Henpeck.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Oblong, 1852 to 1958

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

  1. 19th century
  2. 1852Post officeThe Oblong post office opens
  3. 1877Born hereWilliam W. Arnold is born here
  4. 20th century
  5. 1958In the archiveProject Blue Book report - 1958-10-7201451-Oblong-Illinois
By decade

Oblong, decade by decade

One decade in the archive so far: the 1950s. Scroll each row; tap a photo for its story.

1960s–1990snothing yet
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Add from your album
Today1 recent

Questions about Oblong’s history

What year was Oblong founded?

The Oblong post office opened in 1852, the earliest record of the town by name (U.S. post office records). Wikidata gives 1883.

How does Oblong rank for history?

Oblong is more historic than 46% 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 Oblong?

26% of Oblong’s homes were built before 1940 (Census estimate, ±7.3 points), against a typical 11% for an Illinois town; the median home was built in 1963.

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 Wikimedia Commons (2), Wikipedia, Wikidata and Wikipedia for famous people, 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.