What is the 2015 population of the county where KRFE was located? 
KRFE: KRFE is a radio station licensed to Lubbock, Texas, broadcasting on 580 AM. Lubbock, Texas:  According to a 2015 Census estimate, Lubbock had a population of 249,042, making it the 83rd-most populous city in the United States of America and the 11th-most populous city in the state of Texas.
249,042