Sioux Falls, SD
South Dakotans are not paying as much for electricity, natural gas and fuel as people in most other states.
WalletHub says South Dakota has the nation's 15th lowest energy costs. The average monthly bill is $328.
Colorado has the lowest rates in the nation. The average bill there is $301 per month. In Hawaii, which is at the opposite end of the list, people pay $451 per month.