How many people live in ?

Updated annually
In 2025, there were 588,800 people living in Wyoming. That makes Wyoming the 51st-most populous state, home to 0.17% of people living in the US.

589K

population of Wyoming (2025)

0.17%

Wyoming share of the US population (2025)
The population of Wyoming was about 6.3 times higher than it was in 1900. Between 2024 and 2025, the population of Wyoming grew by about 2,000 people.

About 588,800 people lived in Wyoming in 2025. That's about 6.3 times more than in 1900.

Annual population estimates

What are Wyoming's age demographics?

About 115,700 Wyoming residents were aged 65 and older in 2024. That represents 19.8% of the state’s population compared with 18% in the US overall.
Another 128,000 Wyoming residents, or 21.9% of the state’s population, were aged under 18. For comparison, children account for 21.6% of the US population.

A higher share of Wyoming's population is 65 and older than the US overall.

Population share by age group (2024)

What are Wyoming's racial and ethnic demographics?

A state’s population may have racial and ethnic differences compared with the US overall. These figures reflect how people identified their race alone (not in combination with other races), and separate Hispanic or Latino ethnicity, following Census Bureau reporting standards.
Non-Hispanic white residents make up 82.7% of Wyoming’s population, higher than the national share of 57.5%. Wyoming also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (2.1%) than the US overall (0.72%).
In contrast, Wyoming’s Hispanic population accounted for 11.1%, below the 20% share nationwide. The non-Hispanic Black or African American population makes up 1% of the state, compared with 12.6% nationally.

A higher share of Wyoming's population is non-Hispanic white than the US overall.

Population share by race and ethnicity (2024)

What are Wyoming's most populous counties?

In 2024, five out of 23 counties accounted for over half of Wyoming’s population:
  • Laramie County, 101,800 (17.3% of the population)
  • Natrona County, 80,400 (13.7%)
  • Campbell County, 47,900 (8.2%)
  • Sweetwater County, 41,300 (7%)
  • Fremont County, 39,700 (6.8%)

In 2024, Laramie County was the most populous county in Wyoming.

Population estimates

What are Wyoming's most populous cities?

The largest city in Wyoming is Cheyenne with about 65,700 residents in 2024.

Cities and counties in Wyoming ranked by population

Cities and counties in Wyoming ranked by population
1.

Cheyenne 

65,704
2.

Casper 

58,823
3.

Gillette 

33,846
4.

Laramie 

32,957
5.

Rock Springs

22,967
6.

Sheridan 

19,813
7.

Evanston 

11,691
8.

Green River

11,474
9.

Riverton 

10,953
10.

Jackson 

10,680

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.