Cities & Towns:
Gillette
Wright

Campbell County is in northeastern Wyoming with Montana to the north. This is the heart of Wyoming's oil, gas and coal production country.

Organized in 1911, Campbell County contains 4,797 square miles of land and 5 square miles of water.

The county seat is Gillette. The primary business around here used to be sheep and cattle ranching, but these days, it's all about energy production.