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History · Glendo

Glendo’s post office opened in 1890

Most of Glendo was built recently: 4% of its homes predate 1940 and the median home dates from 1989. Below: maps from 1950 on and the census since 1930.

1890first post office
0on the National Register
4%homes built before 1940
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Photo: Wusel007 · CC BY-SA 3.0
Quick answers

How Glendo began

When was Glendo founded?

1890

The Glendo post office opened in 1890, the earliest record of the town by name.

First census: 201 in 19302020 census: 237136 years
Founding year: the first Glendo post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Glendo’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 Glendo are in the public archives yet. The rest are in attics and albums.Boom and bustPeaked at 367 in 1980; 237 people lived here in 2020.
★ What stands out · Help out

Start Glendo’s collection

The first neighbors to add old photos shape how Glendo’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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People over time

Glendo, census by census

010020030040019401960198020002020Peak: 367

Peaked at 367 in 1980; 237 people lived here in 2020.

10 censuses, 1930–2020.

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

The story

How Glendo came to be

From Wikipedia’s history of Glendo.

Read it all →

The town was incorporated in 1922. The California Trail, Oregon Trail and Mormon Trail passed south of Glendo. The Overland Stage Line also passed south of Glendo.

It was in a cabin near the town that William L. Carlisle, one of America's last train robbers, was captured in December 1919 after a shoot-out with the posse pursuing him.

On August 21, 2017, Glendo was directly in the middle of the path of a total solar eclipse, the first over the continental United States since 1979. Like many locations inside the path of totality, thousands of eager tourists and eclipse chasers flocked into Glendo to witness the event.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Glendo, 1890 to 1980

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

  1. 19th century
  2. 1890Post officeThe Glendo post office opens
  3. 20th century
  4. 1950On the mapFirst mapped by the U.S. Geological Survey
  5. 1980CensusPopulation peaks at 367
By decade

Glendo, decade by decade

Today7 recent
North Platte River at2022North Platte River atTraffic in Glendo, WY, after 2017 solar eclipse2017Traffic in Glendo, WY, after 2017 solar eclipseOn eclipse watch, at NSF and elsewhere2017On eclipse watch, at NSF and elsewhereInterstate 25 - Wyoming2014Interstate 25 - WyomingGlendo Wyoming Main Street2010Glendo Wyoming Main StreetGlendo Reservoir2010Glendo ReservoirFloated Glendo Campground2010Floated Glendo Campground
On the map

Glendo on the map, 1950 to 1978

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

Glendo on the 1950 USGS mapGlendo on the 1961 USGS mapGlendo on the 1978 USGS map1950Glendo sheet · 1:24,000

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

Questions about Glendo’s history

What year was Glendo founded?

The Glendo post office opened in 1890, 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 Wikimedia Commons (7), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.