Penny Power: making a difference in Campbell County, Wyoming since 1976! Together, our pennies collected through the 1% Sales Tax have been spent locally according to priorities set by the registered voters of Campbell County. Your pennies, spent according to your priorities, help make Campbell County a more attractive place to live. The Penny Power Coalition is a volunteer group of citizens who believe in the positive difference that the 1% sales tax brings to Campbell County, Wyoming. We’re looking to engage you in conversation, but we do ask that you do so in a polite and respectful way.