Which city is represented by the airport code RAP?

The airport code RAP is assigned to Rapid City, South Dakota. This code is derived from the city's name, where "RAP" serves as an abbreviation that allows for quick identification of the airport location in aviation contexts. Using initials or syllables from the name of the city is a common practice for assigning airport codes, and in this case, "RAP" effectively conveys the association with Rapid City. Other cities listed with their respective codes may have similar naming conventions, but none of them match the airport code RAP directly, confirming that Rapid City is the correct answer.