[PAR] [TLE] Hannibal, Missouri [SEP] Hannibal is a city in Marion and Ralls counties in the U.S. state of Missouri.  Interstate 72 and U.S. Routes 24, 36, and 61 intersect in the city, which is located along the Mississippi River approximately 100 mi northwest of St. Louis.  According to the 2010 U.S. Census, the population was 17,606, making it the largest city in Marion County. [PAR] [TLE] WGCA-FM [SEP] WGCA-FM is a local Christian Radio Station in Quincy, Illinois broadcasting on 88.5 MHz FM.  The station airs a Contemporary Christian music format, and serves the areas of Quincy, Illinois, Hannibal, Missouri, and Keokuk, Iowa.
[PAR] [TLE] Hannibal , Missouri [ SEP ] Hannibal is a city in Marion and Ralls counties in the U.S. state of Missouri . Interstate 72 and U.S. Routes 24 , 36 , and 61 intersect in the city , which is located along the Mississippi River approximately 100 mi northwest of St. Louis . According to the 2010 U.S. Census , the population was 17,606 , making it the largest city in Marion County . [PAR] [TLE] WGCA - FM [ SEP ] WGCA - FM is a local Christian Radio Station in Quincy , Illinois broadcasting on 88.5 MHz FM . The station airs a Contemporary Christian music format , and serves the areas of Quincy , Illinois , Hannibal , Missouri , and Keokuk , Iowa .
WGCA-FM serves an area of Missouri with what population?
WGCA - FM serves an area of Missouri with what population ?
17,606
17,606