Natrona County
Also known as Natrona County, Wyoming, Natrona County, WY
county in Wyoming, United States
Key facts
- Country
- United States
- State
- Wyoming
- Named after
- Natron deposits
- Seat
- Casper
- Largest city
- Casper
- Total
- 5,376 sq mi (13,920 km )
- Land
- 5,340 sq mi (13,800 km )
- Water
- 35 sq mi (91 km ) 0.7%
- Estimate 2025
- 80,526
- Density
- 15.0/sq mi (5.78/km )
- Time zone
- UTC−7 ( Mountain )
- Summer dst
- UTC−6 ( MDT )
- Congressional district
Article
Natrona County is a county in the U.S. state of Wyoming. As of the 2020 United States census, the population was 79,955, making it the second-most populous county in Wyoming. Its county seat is Casper. Natrona County comprises the Casper metropolitan area. In 2010, the center of population of Wyoming was in Natrona County, near Alcova.
History