Wyoming
Johnson
8,447
2020 population
1880
first census record
15
census records
About Johnson
Johnson, Wyoming, first appears in the United States federal census in 1880, when it recorded a population of 637. At the most recent census, in 2020, its population stood at 8,447.
Its recorded population peaked at 8,569 in 2010, and has since declined by roughly 1 percent.
On the ground today, 40 documented military engagements have been recorded within the county, among them Battle of Powder River, Fort Reno Establishment Skirmishes 1865–1866, Battle of Tongue River — Connor's Expedition (August 29, 1865), and 28 places are listed on the National Register of Historic Places.
Population by decade
Source
Population data from the United States decennial census, U.S. Census Bureau (public domain).
Battles & engagements in Johnson
Military engagements that took place in Johnson, Wyoming.
Battle of Powder River
1865
Fort Reno Establishment Skirmishes 1865–1866
1865
Battle of Tongue River — Connor's Expedition (August 29, 1865)
1865
Sawyers Expedition Fights
1865
Crazy Woman Fork Fight July 1866
1866
Fort Phil Kearny — Construction Skirmishes (Summer 1866)
1866
Fetterman Fight — Lodge Trail Ridge Ambush (December 21, 1866)
1866
Crazy Woman Fork Engagement
1866
Fort Phil Kearny — December 6 1866 Sortie
1866
Battle at Dry Fork of the Powder River 1866
1866
Crazy Woman Fork Fight
1866
Fetterman Fight
1866
Battle of Crazy Woman's Fork — Bozeman Trail 1866
1866
Fetterman Fight — Fetterman's Advance (December 21, 1866)
1866
Sioux Attack on Fort Phil Kearny (1866)
1866
Fort Phil Kearny Wood Road Ambush — October 1866
1866
Fetterman Fight (Fort Phil Kearny)
1866
Connor Fight (near Fort Reno)
1866
Fetterman Fight Prelude — Crazy Woman Fork (July 1866)
1866
Fort Phil Kearny Skirmishes 1866
1866
Bozeman Trail — Powder River Bridge Fight 1866
1866
Fetterman Fight Prelude — Decoy Fight November 1866
1866
Battle of Crazy Woman Fork
1866
Fetterman Fight — Grummond's Cavalry Charge (December 21, 1866)
1866
Fort Phil Kearny — Carrington's Construction and Siege 1866
1866
Big Piney Fight (Fort Phil Kearny)
1866
Fort Phil Kearny Ambushes 1866–1867
1866
Fetterman Fight — Lodge Trail Ridge Ambush (December 21, 1866)
1866
Wagon Train Attacks on Bozeman Trail 1866
1866
Battle of Clear Fork (Bozeman Trail)
1867
Piney Island Skirmish
1867
Bozeman Trail Ambush – Powder River Crossing
1867
Battle of Wagon Box Fight
1867
Wagon Box Fight — Initial Mounted Assault (August 2, 1867)
1867
Wagon Box Fight
1867
Bozeman Trail Ambush – Tongue River Crossing
1867
Abandonment of Fort Phil Kearny (August 1868)
1868
Mackenzie's Pre-Dawn Attack — Dull Knife's Village (November 25, 1876)
1876
Battle of Dull Knife — Warriors' Counter-Attack
1876
Battle of Dull Knife — Village Destruction and Pony Capture
1876
Historic places in Johnson
National Register of Historic Places listings in Johnson, Wyoming.
Fort McKinney
Buffalo
Fort Reno
Sussex
EDZ Irigary Bridge
Sussex
Fort Phil Kearny and Associated Sites
Story
Lake Desmet Segment, Bozeman Trail
City Unavailable
EDL Peloux Bridge
Buffalo
Union Congregational Church and Parsonage
Buffalo
St. Luke's Episcopal Church
Buffalo
Dull Knife Battlefield
Barnum
Cantonment Reno
Sussex
Beaver Creek Ranch Headquarters
Buffalo
TA Ranch Historic District
Buffalo
Johnson County Courthouse
Buffalo
Spear-O-Wigwam Ranch
Story
Holland House
Buffalo
Sussex Post Office and Store
Kaycee
HF Bar Ranch Historic District
Buffalo
Main Street Historic District
Buffalo
Trabing Station-Crazy Woman Crossing
City Unavailable
Powder River Station-Powder River Crossing (48JO134 and 48JO801)
Sussex
Methodist Episcopal Church
Buffalo
AJX Bridge over South Fork and Powder River
Kaycee
Carnegie Public Library
Buffalo
Unlimited access
Everything a full report reveals about Johnson County, Wyoming
This page charts the census history of Johnson County, Wyoming. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:
Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Explore Wyoming records
Frequently asked about Johnson
When does Johnson first appear in the US census?
Johnson, Wyoming first appears in the federal census in 1880, with a recorded population of 637.
What is the population of Johnson?
At the most recent federal census (2020), Johnson had a recorded population of 8,447.
When did Johnson's population peak?
Johnson's recorded population peaked at 8,569 in 2010.
Were any battles fought in Johnson?
40 documented military engagements took place in Johnson, including Battle of Powder River, Fort Reno Establishment Skirmishes 1865–1866, Battle of Tongue River — Connor's Expedition (August 29, 1865).
How many historic places are in Johnson?
28 sites are listed on the National Register of Historic Places in Johnson, Wyoming.
Aubrey Research
Research the history of any US location
Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.