Wyoming County Map: All 23 Counties

Sweetwater County in southwestern Wyoming covers 10,427 square miles—larger than Maryland, Vermont, Massachusetts, or New Hampshire. Encompassing the Great Divide Basin and the Flaming Gorge National Recreation Area, Sweetwater County contains the world's largest known deposit of trona (sodium sesquicarbonate), mined for soda ash used in global glass manufacturing.

In northeastern Wyoming, the Powder River Basin spans Campbell, Converse, and Johnson counties. Campbell County (Gillette) serves as the "Energy Capital of the Nation," producing hundreds of millions of tons of low-sulfur sub-bituminous coal from massive open-pit mines like North Antelope Rochelle.

Because Wyoming imposes no personal or corporate state income tax, county governments and public schools are financed through local property taxes, state sales taxes, and state mineral severance taxes levied on coal, crude oil, and natural gas extraction.

Teton County in northwestern Wyoming encompasses the town of Jackson, Grand Teton National Park, and over 40% of Yellowstone National Park. With over 97% of its land area federally protected in national parks and national forests, private land is extraordinarily scarce.

Attracted by Wyoming's lack of income taxes, pristine mountain scenery, and Jackson Hole Mountain Resort, high-net-worth individuals have transformed Teton County into the highest per-capita income county in the United States. This creates acute affordable housing shortages for working teachers, police, and resort staff, prompting the Teton County Commission to pioneer regional housing trusts.

In stark contrast, eastern agricultural counties like Niobrara, Goshen, and Platte preserve quiet ranching traditions where multi-generational homesteads manage cattle herds across thousands of acres of rolling shortgrass prairie.