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B−History
History · Greybull

Greybull’s post office opened in 1907, and 27% of its homes were built before 1940

More historic than 52% of U.S. towns. What drives it

4 places in town are on the National Register. Below: maps from 1918 on and the census since 1910.

1907first post office
4on the National Register
27%homes built before 1940
4famous people
Add an old photoShare a memory
Quick answers

How Greybull began

When was Greybull founded?

1907

The Greybull post office opened in 1907, the earliest record of the town by name.

First census: 258 in 19102020 census: 1,651119 years

How historic is Greybull?

B−

More historic than 52% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Greybull post office (Blevins & Helbock, CC0).
History grade

What drives Greybull’s History grade

On its age, its old homes and the National Register, Greybull is more historic than 52% of U.S. towns. Its share of homes from before 1940 holds the grade up; its age pulls it down.

B−
HistoryA character grade: shown, never part of Greybull’s overall grade.
Founding era1907, from the first post office: founded 1900–1944, an older era than 9% of U.S. townsDHomes built before 194027.1% of homes (±6.2) · typical WY town 12.0% · U.S. 8.4%A−National Register4 listings, 19.1 per 10,000 residents · typical WY town 25.1 · U.S. 2.4B
All U.S. towns we grade (21,289)Ahead of 52%
NewerOlder

Wyoming towns list more on the Register than most of the country (a typical Wyoming town has 25.1 per 10,000 residents, the U.S. 2.4), so Greybull’s 19.1 sits near the middle of its state (56% of Wyoming towns have fewer) while its 4 listings outnumber those of 68% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from C to A−. The pre-1940 share is a Census survey estimate (±6.2 points). The founding year is the first post office, not a stated founding date.

Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →

What stands out about Greybull’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 Greybull are in the public archives yet. The rest are in attics and albums.Boom and bustPeaked at 2,692 in 1920; 1,651 people lived here in 2020.Old housesHalf of Greybull’s homes were built before 1955.Landmarks on the Register4 places on the National Register.
★ What stands out · Help out

Start Greybull’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Share a family photoSign in to add one+10
People over time

Greybull, census by census

05001,0001,5002,0002,5003,000192019401960198020002020Peak: 2,692

Peaked at 2,692 in 1920; 1,651 people lived here in 2020.

12 censuses, 1910–2020.

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

The story so far

Greybull, in brief

Wikipedia doesn’t have a history of Greybull yet. The photos, dates and memories neighbors add here are how it gets written.

Greybull is a town in central Big Horn County, Wyoming, United States. The population was 1,651 at the 2020 census. The town takes its name from the Greybull River which was named for a gray buffalo seen along its banks.

Its first post office opened in 1907. Between the 2010 and 2020 censuses its population fell from 1,847 to 1,651 (-11%).

Intro from Wikipedia. Population: U.S. Census Bureau.

Timeline

Greybull, 1907 to 1966

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

  1. 20th century
  2. 1907Post officeThe Greybull post office opens
  3. 1919Born hereBobby Mallon is born here
  4. 1920CensusPopulation peaks at 2,692
  5. 1935Born hereJim Crawford is born here
  6. 1950Born hereSteven R. Cranfill is born here
  7. 1964Born hereBill Wilkinson is born here
  8. 1966On the mapFirst mapped by the U.S. Geological Survey
By decade

Greybull, decade by decade

Today9 recent
Looking West down Greybull Avenue in2021Looking West down Greybull Avenue inCarey Block2020Carey BlockAmerican Legion Post 322020American Legion Post 32Manuel A. Bromberg's "Chuck Wagon Serenade" mural in the U.S. Post Office building2015Manuel A. Bromberg's "Chuck Wagon Serenade" mural in …Retired C-119 Flying Boxcar Tanker military aircraft at the Museum of Flight and Aerial Firefighting2015Retired C-119 Flying Boxcar Tanker military aircraft …Retired Beech-18 "smokejumper" and transport airplane at the Museum of Flight and Aerial Firefighting2015Retired Beech-18 "smokejumper" and transport airplane…Retired PB4Y-2 Privateer Tanker 127 airplane at the Museum of Flight and Aerial Firefighting2015Retired PB4Y-2 Privateer Tanker 127 airplane at the M…Lower-shell-school-house2009Lower-shell-school-houseWYMap-doton-Greybull2004WYMap-doton-Greybull
On the map

Greybull on the map, 1966 to 1982

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

Greybull on the 1966 USGS mapGreybull on the 1982 USGS map1966Greybull South 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 Greybull.

Every building

Greybull, building by building, 1918

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.

Greybull fire insurance map, 1918, sheet 11918Sheet 1 of 5
BrickWoodStone

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

On the National Register

4 historic places in Greybull

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

places listed
4
National Historic Landmarks
0
none yet
historic buildings protected
4
each building in a district counts
first listed
1987
US Post Office-Greybull Main
US Post Office-Greybull MainCarey BlockAmerican Legion Hall, Post 32American Legion Hall
Buildings

Architectural styles listings

Commercial1
US Post Office-Greybull MainBuilding
Carey BlockCommercial
American Legion Hall, Post 32Building
All 4 listings
American Legion HallBuilding · listed 2023

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

Famous people

4 famous people were born in Greybull

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
B
Bobby MallonAmerican actor · b. 1919
J
Jim CrawfordAmerican football player · b. 1935
B
Bill WilkinsonAmerican baseball player · b. 1964
S
Steven R. CranfillAmerican politician · b. 1950
Places that used to be

Places now gone

Greybull’s post office has been open since 1907.

Gone or out of use
Beaver Hill MinesmineBig Horn Redi-Mix Incorporated Minemine

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Questions about Greybull’s history

What year was Greybull founded?

The Greybull post office opened in 1907, the earliest record of the town by name (U.S. post office records).

How does Greybull rank for history?

Greybull is more historic than 52% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.

What is on the National Register in Greybull?

4 listings: 4 buildings, among them the US Post Office-Greybull Main (listed 1987, the first).

How old are the homes in Greybull?

27% of Greybull’s homes were built before 1940 (Census estimate, ±6.2 points), against a typical 12% for a Wyoming town; the median home was built in 1955.

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).

From Wikimedia Commons (5), the Library of Congress (4), Wikidata (1), the National Register of Historic Places (4), 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 and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.