Guest, Sign inJoin

Post to Kaycee

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
–Not graded
History · Kaycee

Kaycee’s post office opened in 1898

Most of Kaycee was built recently: 8% of its homes predate 1940 and the median home dates from 1982. Below: 1 old photo or paper, maps from 1961 on, and the census since 1920.

1898first post office
0on the National Register
8%homes built before 1940
1old photo or paper
1famous people
Add an old photoShare a memory
From Kaycee’s archive · credits on each photo
Quick answers

How Kaycee began

When was Kaycee founded?

1898

The Kaycee post office opened in 1898, the earliest record of the town by name.

First census: 217 in 19202020 census: 247128 years
Founding year: the first Kaycee post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Kaycee’s past

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

A history waiting to be writtenOnly 1 old photo is in the public archives. The rest are in attics and albums.
★ What stands out · Help out

Start Kaycee’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Date a photo1 archive item has no date. Guess the decade.+2Retake an old viewSouth Fork Powder River Bridge, On West…: stand where they stood+15Share a family photoSign in to add one+10
The story

How Kaycee came to be

From Wikipedia’s history of Kaycee.

Read it all →

In 1834 a band of trappers and traders led by Antonio Montero from Portugal built a trading post east of Kaycee WY.It became known as the "Portuguese Fort." A unique site, what little remains from the area have been donated to the Hoofprints of the Past Museum and includes artefacts including a sword, beads, and clay pipes.

ChaptersThe Portuguese FortThe Bozeman TrailFort Reno and Cantonment RenoMoreton FrewenHole In the WallThe Johnson County Cattle War

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Kaycee, 1898 to 1977

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

  1. 19th century
  2. 1898Post officeThe Kaycee post office opens
  3. 20th century
  4. 1961On the mapFirst mapped by the U.S. Geological Survey
  5. 1977Born hereNed LeDoux is born here
By decade

Kaycee, decade by decade

Date unknown1 to date
South Fork Powder River Bridge, On West Service Road of I-25Date?South Fork Powder River Bridge, On West Service Road …
Today5 recent
Kaycee, Wyoming USA2024Kaycee, Wyoming USAChris Ledoux Monument2024Chris Ledoux MonumentKaycee School2021Kaycee SchoolSussex Community Hall near2012Sussex Community Hall nearSussex Community Hall near2012Sussex Community Hall near
On the map

Kaycee on the map, 1961 to 1981

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

Kaycee on the 1961 USGS mapKaycee on the 1981 USGS map1961Kaycee 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 Kaycee.

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.

South Fork Powder River Bridge, On West Service Road of I-25
Retake this viewSouth Fork Powder River Bridge, On West Service Road of I-25

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

Retake this view · +15
People over time

Kaycee, census by census

0100200300192019401960198020002020Peak: 284

Between 161 and 284 people in every census since 1920.

11 censuses, 1920–2020.

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

Questions about Kaycee’s history

What year was Kaycee founded?

The Kaycee post office opened in 1898, 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 (5), the Library of Congress (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) 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.