How many counties are in Wyoming?

Wyoming has 23 counties, according to the U.S. Census Bureau.

What is the largest city in Wyoming?

Cheyenne is the largest city in Wyoming, with a population of about 65,239.

What is the population of Wyoming?

Wyoming has about 582,397 residents, based on the Census Bureau's American Community Survey 5-year estimates.

How many ZIP codes are in Wyoming?

There are 176 ZIP Code Tabulation Areas in Wyoming.

Wyoming (WY): Counties, Cities, ZIP Codes & Public Data

Population

582,397

Land area

97,089sq mi

People per sq mi

6

Cities and towns

205

Wyoming at a glance

Households here earn a median of $76,176 a year, 6% less than the U.S. figure of $80,734.
A typical owner-occupied home is valued at $309,700 (7% below the U.S.) and median rent is $992 a month.
The biggest population centers are Cheyenne (65,239), Casper (58,839) and Gillette (33,431).

Local data for Wyoming

Counts from official public data

Housing and community stats

Wyoming, American Community Survey 2020-2024

Full profile

Median household income

$76,176

Poverty rate

10.5%

Median home value

$309,700

Prices +3.2% in a year

Median rent

$992/mo

Homeownership

71.8%

Bachelor's or higher

30.6%

Median age

39.1

Average commute

18.8 min

Largest reported origins and ancestries: German Americans (125,092), Irish Americans (68,046), Mexican Americans (46,328).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.0%

Sep 2026, -0.4 pts in a year

Average annual pay

$63,535

282,252 jobs, 2025

Income per person

$86,477

BEA, 2024

Federal spending

$5.56B

FY 2026, $9,638 per person

PPP loans

$1.64B

25,651 loans, 179,398 jobs reported

Campaign donations

$25.1M

Itemized, 2026 cycle

Economy Federal spending PPP loans Campaign finance

Environment and hazard risk

Wyoming, from FEMA, NOAA and EPA

Full report

High-risk counties

0

of 23 rated by FEMA

Storm events since 1996

24,631

114 deaths

Flood insurance policies

1,305

$3.72M paid since 1978

Superfund sites

3

62 toxic release facilities

Hazards, floods and storm history Check a flood zone 319 historic places

Health statistics

Share of adults in Wyoming, CDC PLACES estimates

All 40 measures

Obesity

33.8%

U.S. 33.3% +0.5 pts

Diabetes

10.9%

U.S. 12.1% -1.2 pts

Smoking

14.0%

U.S. 12.8% +1.2 pts

Uninsured (18-64)

11.6%

U.S. 11.1% +0.5 pts

Largest cities in Wyoming

Name	Population	Land area (sq mi)
Cheyenne	65,239	36.5
Casper	58,839	26.8
Gillette	33,431	23.2
Laramie	32,234	18.5
Rock Springs	23,127	19.8
Sheridan	19,285	12.7
Evanston	11,800	10.3
Green River	11,581	13.8
Riverton	10,856	10.4
Jackson	10,756	3
Cody	10,276	10.2
Rawlins	8,129	8.2
Lander	7,432	4.7
Powell	6,503	4.3
Douglas	6,420	6.6
Torrington	6,182	3.8
Ranchettes	5,949	48.8
Worland	4,794	4.6
South Greeley	4,631	1.7
Buffalo	4,572	4.5
Mills	4,390	5.1
Fox Farm-College	4,019	3
Wheatland	3,550	4.1
Newcastle	3,348	2.6
Bar Nunn	3,008	2.1

Counties, cities and towns in Wyoming

Population shown

Frequently asked questions

How many counties are in Wyoming?: Wyoming has 23 counties, according to the U.S. Census Bureau.
What is the largest city in Wyoming?: Cheyenne is the largest city in Wyoming, with a population of about 65,239.
What is the population of Wyoming?: Wyoming has about 582,397 residents, based on the Census Bureau's American Community Survey 5-year estimates.
How many ZIP codes are in Wyoming?: There are 176 ZIP Code Tabulation Areas in Wyoming.