Question: To which city in Collier County, Florida with a population of about 16,000 as of 2010 is the full-time satellite station WMKO-FM 91.7 of the NPR-member radio station WGCU-FM (90.1 FM) licensed?
Sentence (from "WGCU-FM"): WGCU also operates WMKO-FM 91.7, a full-time satellite station licensed to Marco Island to serve the Naples area.
Relevant evidence: Yes