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History · Dexter

Dexter’s post office opened in 1868, and 49% of its homes were built before 1940

Its Register listing is the Dexter Community House. Below: 2 old photos and papers, maps from 1916 on, and the census since 1880.

1868first post office
1on the National Register
49%homes built before 1940
2old photos & papers
1famous people
From Dexter’s archive · credits on each photo
Quick answers

How Dexter began

When was Dexter founded?

1868

The Dexter post office opened in 1868, the earliest record of the town by name.

First census: 704 in 18802020 census: 640158 years
Founding year: the first Dexter post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Dexter’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 Dexter’s collection

The first neighbors to add old photos shape how Dexter’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 Dexter came to be

From Wikipedia’s history of Dexter.

Read it all →

The city is famous for being the site of a July 23, 1933, shootout between members of the Barrow gang and police from as far away as Des Moines.

On September 18, 1948, Dexter was the site of a national plowing match at which President Harry Truman delivered a speech attacking the 80th Congress for its record in regard to the American farmer. This speech is considered one of the most important of his 1948 Whistle Stop campaign that turned the tide of the election and returned him to the White House.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Dexter in 1879

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

There are also several other smaller county bridges in the township spanning Bear creek and the North river near Dexter. This township now has nine school-houses, and as many sub-districts, besides the graded and public schools in the different towns, the Bear Creek Academy, and the large Normal sc…
The History of Dallas County, Iowa, containing a history of the county, its cities, towns, &c. ..1879 · page 515Read the page →
Read the text

There are also several other smaller county bridges in the township spanning Bear creek and the North river near Dexter. This township now has nine school-houses, and as many sub-districts, besides the graded and public schools in the different towns, the Bear Creek Academy, and the large Normal school-building now being erected at Dexter.

Text read by machine from the scan; it may contain errors.
"About the 25th of August J. C. Allen built the red warehouse, now owned by D. A. Burrows. The lumber in it was the first shipped into Dexter by railroad. This building was used by the railroad company as a depot until the present depot was built, when J. C. Allen used it as a grain warehouse, wher…
The History of Dallas County, Iowa, containing a history of the county, its cities, towns, &c. ..1879 · page 467Read the page →
Read the text

"About the 25th of August J. C. Allen built the red warehouse, now owned by D. A. Burrows. The lumber in it was the first shipped into Dexter by railroad. This building was used by the railroad company as a depot until the present depot was built, when J. C. Allen used it as a grain warehouse, where he bought and shipped the first car load of grain that was ever shipped from Dexter. There was no grain but wheat to ship then, as corn had to be brought from further east to use here.

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.

Timeline

Dexter, 1868 to 1976

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

  1. 19th century
  2. 1868Post officeThe Dexter post office opens
  3. 1875In the archiveDallas Center, Casey, DeSoto, Dexter, Ogden, Perry, Shell Rock and Adel, Iowa. (0018.158)
  4. 20th century
  5. 1948In the archivePresident Harry S. Truman and Herb Plambeck at the National Plowing Match
  6. 1949On the mapFirst mapped by the U.S. Geological Survey
  7. 1976Born hereBrenna Bird is born here
By decade

Dexter, decade by decade

2 decades in the archive, from the 1870s to the 1940s. Scroll each row; tap a photo for its story.

1950s–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
On the map

Dexter on the map, 1949 to 1982

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

Dexter on the 1949 USGS mapDexter on the 1951 USGS mapDexter on the 1982 USGS map1949Adel 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 Dexter.

Every building

Dexter, building by building, 1916

Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a sheet.

Dexter fire insurance map, 1916, sheet 11916Sheet 1 of 1
Sheets
BrickWoodStone

Sanborn Map Company, via the Library of Congress. Editions published in 1930 or earlier, which are in the public domain.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Dallas Center, Casey, DeSoto, Dexter, Ogden, Perry, Shell Rock and Adel, Iowa. (0018.158)
Retake this viewDallas Center, Casey, DeSoto, Dexter, Ogden, Perry, Shell Rock and Adel, Iowa. (0018.158), 1875

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Dexter’s page.

Retake this view · +15
On the National Register

1 historic place in Dexter

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
each building in a district counts
first listed
1975
Dexter Community House

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

People over time

Dexter, census by census

020040060080018801900192019401960198020002020Peak: 795

Between 607 and 795 people in every census since 1880.

15 censuses, 1880–2020.

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

Questions about Dexter’s history

What year was Dexter founded?

The Dexter post office opened in 1868, the earliest record of the town by name (U.S. post office records).

What is on the National Register in Dexter?

One place: the Dexter Community House (listed 1975).

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 Wikimedia Commons (6), the National Register of Historic Places (1), Wikipedia, Wikidata and Wikipedia for famous people, 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, Sanborn fire insurance maps (Library of Congress) 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.