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History · Union

Union’s post office opened in 1852, and 31% of its homes were built before 1940

Below: old-book passages.

1852first post office
0on the National Register
31%homes built before 1940
1famous people
Photo: Bnperdue2010 · CC BY-SA 4.0
Quick answers

How Union began

When was Union founded?

1852

The Union post office opened in 1852, the earliest record of the town by name.

2020 census: 551174 years
Founding year: the first Union post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Union’s past

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

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Start Union’s collection

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

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

How Union came to be

From Wikipedia’s history of Union.

Read it all →

A post office called Union has been in operation since 1852. The village was named for the federal union of the United States.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Union in 1883

Passages that mention Union, cut from the printed page as they were published.

Union Point, was born in Union County. 111., January 2, 1849, to Charles and Matilda (Hileman) Barringer, both of whom were born in this county, and are still living (see sketch of Charles Barringer). Our subject was educated in the Jonesboro schools, and when seventeen years old, he began teaching…
History of Alexander, Union and Pulaski Counties, Illinois1883 · page 211Read the page →
Read the text

Union Point, was born in Union County. 111., January 2, 1849, to Charles and Matilda (Hileman) Barringer, both of whom were born in this county, and are still living (see sketch of Charles Barringer). Our subject was educated in the Jonesboro schools, and when seventeen years old, he began teaching school and continued for five years in Union County, and one

Text read by machine from the scan; it may contain errors.
In 1800, during the secession excitement in Missouri, the State Convention was called, to detei'mine whether Missoui'i should secede or remain in the Union, Judge Gilbert took an active part in seciu'ing Union delegates from his district, against powerful opposition, and it was largely through the …
History of Alexander, Union and Pulaski Counties, Illinois1883 · page 35Read the page →
Read the text

In 1800, during the secession excitement in Missouri, the State Convention was called, to detei'mine whether Missoui'i should secede or remain in the Union, Judge Gilbert took an active part in seciu'ing Union delegates from his district, against powerful opposition, and it was largely through the , influence of his pen and management that Union

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

By decade

Union, decade by decade

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Questions about Union’s history

What year was Union founded?

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

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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 Wikimedia Commons (1), Wikipedia, Wikidata and Wikipedia for famous people, the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.