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History · De Witt

De Witt’s post office opened in 1844, and 43% of its homes were built before 1940

Below: maps from 1957 on and the census since 1880.

1844first post office
0on the National Register
43%homes built before 1940
Quick answers

How De Witt began

When was De Witt founded?

1844

The De Witt post office opened in 1844, the earliest record of the town by name.

First census: 293 in 18802020 census: 160182 years
Founding year: the first De Witt post office (Blevins & Helbock, CC0).The full story ↓

What stands out about De Witt’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 De Witt’s collection

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

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

How De Witt came to be

From Wikipedia’s history of De Witt.

Read it all →

DeWitt was originally called Marion, and under the latter name was platted in 1836. The present name is for DeWitt Clinton, governor of New York, 1817–1823.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about De Witt in 1882

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

The village of De Witt as now situated is long and straggling, extending from the original town of Marion north to the railroad, a distance of about three-fourths of a mile. The addition was made by A. C. Jones, August 2.3d, 1871, and described as follows : Commencing at the N. E. corner of the E. …
... History of De Witt county, Illinois. With illustrations descriptive of the scenery, and biographical sketches of some of the prominent men and pioneers1882Read the page →
Read the text

The village of De Witt as now situated is long and straggling, extending from the original town of Marion north to the railroad, a distance of about three-fourths of a mile. The addition was made by A. C. Jones, August 2.3d, 1871, and described as follows : Commencing at the N. E. corner of the E. i of the S. E. part of section IS, town 20 N. R. 4 E., south on section line 2,646 feet to section corner; westerly on section line 1,240 feet; north 2,646 feet, easterly 1,240 feet except right of way of the G. C.

Text read by machine from the scan; it may contain errors.
St.\te of Illisois, I De Witt County. J ' The grand jurors, chosen, selected, and sworn in and for the county of De Witt, in the name and by the authority of the people of the State of Illinois, upon their odths presen', that one George Clifton, on the first day of September, A. D. 1839, at the cou…
... History of De Witt county, Illinois. With illustrations descriptive of the scenery, and biographical sketches of some of the prominent men and pioneers1882 · page 83Read the page →
Read the text

St.\te of Illisois, I De Witt County. J ' The grand jurors, chosen, selected, and sworn in and for the county of De Witt, in the name and by the authority of the people of the State of Illinois, upon their odths presen', that one George Clifton, on the first day of September, A. D. 1839, at the county of De Witt and slate aforesaid, one hog of the value of five dollars, (being then and there the property of one B. Lowery,) unlawfully, wilfulh',

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

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On the map

De Witt on the map, 1957 to 1999

Every edition of the U.S. Geological Survey’s map of De Witt. Tap a year, or press play to watch the town change.

De Witt on the 1957 USGS mapDe Witt on the 1979 USGS mapDe Witt on the 1999 USGS map1957Maroa sheet · 1:62,500

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

People over time

De Witt, census by census

010020030018801900192019401960198020002020Peak: 293

Between 122 and 293 people in every census since 1880.

15 censuses, 1880–2020.

U.S. Census Bureau decennial counts, from the census table on De Witt’s Wikipedia page.

Questions about De Witt’s history

What year was De Witt founded?

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

Memory lane

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

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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 Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.