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History · Omega Township

Omega Township’s post office opened in 1855

Most of Omega Township was built recently: 2% of its homes predate 1940 and the median home dates from 1993. Below: maps from 1986 on.

1855first post office
0on the National Register
2%homes built before 1940
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Quick answers

How Omega Township began

When was Omega Township founded?

1855

The Omega Township post office opened in 1855, the earliest record of the town by name. Another post office, Omega (1855), opened inside today’s town and later closed.

2020 census: 495171 years
Founding year: the first Omega Township post office (Blevins & Helbock, CC0).

What stands out about Omega Township’s past

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

A history waiting to be writtenNo old photos of Omega Township are in the public archives yet. The rest are in attics and albums.
★ What stands out · Help out

Start Omega Township’s collection

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

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

Omega Township, in brief

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

Omega Township is located in Marion County, Illinois. As of the 2010 census, its population was 501 and it contained 212 housing units.

Its first post office opened in 1855. Its population held steady between the last two censuses: 501 in 2010, 495 in 2020.

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

Timeline

Omega Township, 1855 to 1986

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

  1. 19th century
  2. 1855Post officeThe Omega post office opens
  3. 20th century
  4. 1904Post officeThe Omega post office closes
  5. 1986On the mapFirst mapped by the U.S. Geological Survey
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.
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On the map

Omega Township on the map in 1986

The U.S. Geological Survey’s map of Omega Township.

Omega Township on the 1986 USGS map1986Olney sheet · 1:100,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Omega Township.

Places that used to be

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

Another post office, Omega, opened and closed inside today’s town.

Hamlets and corners on the map
Omega
Gone or out of use
Bee Branch SchoolschoolBrown SchoolschoolMount Carmel ChurchchurchShadden SchoolschoolSiloam Churchchurch
8cemeteries and burying grounds inside Omega Township
Bee BranchClackHaddenLovells GroveMillicanPhillipsShaddenSmith

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

Stories next door

History across the town line

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

Songer TownshipIts storynot graded: under 1,000 residents or part of its townAlma TownshipIts storynot graded: under 1,000 residents or part of its townMeacham TownshipIts storynot graded: under 1,000 residents or part of its townIuka TownshipIts storynot graded: under 1,000 residents or part of its townOskaloosa TownshipIts storynot graded: under 1,000 residents or part of its town

Questions about Omega Township’s history

What year was Omega Township founded?

The Omega Township post office opened in 1855, the earliest record of the town by name (U.S. post office records).

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). How TownRatings grades history →

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.