Rapid City Elects New Mayor By Chynna Lockett • Jun 3, 2015 ShareTweetEmail View Slideshow 1 of 2 Allender gives a victory speech in Downtown Rapid City on Tuesday, June 2 after winning the 2015 mayor race. Charles Ray View Slideshow 2 of 2 Kooiker watches from a hotel as the results of the 2015 mayoral election are announced on Tuesday June 2. Chynna Lockett Rapid City has a new mayor. Former police Chief Steve Allender won the municipal election against incumbent Sam Kooiker. Click play bellow to hear more. Listen Listening... / 1:15 Tags: MayorRapid CityElectionSteveAllenderShareTweetEmailView the discussion thread.