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Johnson County, WY
2 cities and towns and 3 ZIP codes in Johnson County, Wyoming.
Population
8,686
Land area
4,154sq mi
People per sq mi
2
ZIP codes
3
Cities and towns in Johnson County
Johnson County at a glance
- Johnson County is 65% less dense than Wyoming as a whole.
- Households here earn a median of $64,871 a year, 15% less than the Wyoming figure of $76,176.
- A typical owner-occupied home is valued at $326,800 (6% above Wyoming) and median rent is $1,029 a month.
- The biggest population centers are Buffalo (4,572) and Kaycee (280).
Local data for Johnson County, WY
Counts from official public data
Housing and community stats
Johnson County, WY, American Community Survey 2020-2024
Median household income
$64,871
Poverty rate
9.1%
Median home value
$326,800
Prices +8.1% in a year
Median rent
$1,029/mo
Homeownership
82.3%
Bachelor's or higher
30.3%
Median age
47.3
Average commute
16.7 min
Largest reported origins and ancestries: German Americans (1,816), Irish Americans (932), Swedish Americans (317).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
2.4%
Sep 2026, +0.2 pts in a year
Average annual pay
$52,780
3,363 jobs, 2025
Income per person
$73,246
BEA, 2024
Federal spending
$95.1M
FY 2026, $11,253 per person
PPP loans
$25.1M
711 loans, 3,002 jobs reported
Campaign donations
$52.4K
Itemized, 2026 cycle
How people get to work
Johnson County, WY, workers 16 and older. American Community Survey 5-year estimates
- Drove alone68.9%
- Carpooled3.6%
- Public transit0.3%
- Walked7.1%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other1.0%
- Worked from home19.2%
Average one-way commute: 16.7 minutes for people who do not work from home.
Environment and hazard risk
Johnson County, WY, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: wildfire
Storm events since 1996
735
Most often winter storm
Flood insurance policies
15
0.3% of homes, county
July high / Jan low
86° / 12°F
13.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone12 historic places
Health statistics
Share of adults in Johnson County, WY, CDC PLACES estimates
Obesity
35.6%
U.S. 33.3% +2.3 pts
Diabetes
13.1%
U.S. 12.1% +1.0 pts
Smoking
14.7%
U.S. 12.8% +1.9 pts
Uninsured (18-64)
10.5%
U.S. 11.1% -0.6 pts
Cities, towns and ZIP codes in Johnson County
Population shown
Frequently asked questions
- What is the largest city in Johnson County, WY?
- Buffalo is the largest city or town in Johnson County, with about 4,572 residents.
- How many ZIP codes are in Johnson County?
- Johnson County includes 3 ZIP Code Tabulation Areas, including 82639, 82640, 82834.
- What is the population of Johnson County, WY?
- About 8,686 people live in Johnson County, based on American Community Survey 5-year estimates.
- What counties border Johnson County?
- Johnson County borders Natrona County, Campbell County, Sheridan County, Converse County, Big Horn County, Washakie County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023