Rental car options

Try to avoid airports for car rentals if at all possible as their rates are higher plus you get to pay a lot of gov't. imposed taxes that you are not subject to with off-airport rentals. This can make the total rental 25-50% higher.
Usually online has the best rates. If you are sure about your reservation, Hertz has a "pay now" option that discounts the rate substantially.

should be plenty available in Rapid City. reserve one.
bumpy

There are rental cars available at the Rapid City airport. Type in rental cars, Rapid, City, SD at any search website and you'll find a list for availability for several companies. During certain times of year you'll need to reserve long in advance. Tourist season in the Black Hills is very busy!

Also check Zipcar; recently purchased by Enterprise or Avis; has a different business model than most car rental companies. You don't pay for gas and can rent by the hour or day. Useful for short term rentals.

Enterprise advertises at most RV Resorts with free pickup to take you to the rental office. Of course these RV resorts are close to major tourist destinations or cities.

We've used Enterprise often when out in the RV and a rental car was needed.

Hi,

Yes the KOA does have some rental cars.

Before our toad days we used Enterprise. They have locations in many places and will come and pick you up.