Edwardsville is a city in Wyandotte County, Kansas, United States, and part of the Kansas City Metropolitan Area. As of the 2020 census, th…Edwardsville is a city in Wyandotte County, Kansas, United States, and part of the Kansas City Metropolitan Area. As of the 2020 census, the population of the city was 4,717. Edwardsville was surveyed in 1869 on land formerly belonging to Half Moon, an Indian chief of the Delawares. It was named for John H. Edwards, a general passenger agent for the Union Pacific Railroad, who later served as a justice of the peace and state senator from Ellis County, Kansas.