Mount Hope is a city in Sedgwick County, Kansas, United States. As of the 2020 census, the population of the city was 806. Mount Hope was fo…Mount Hope is a city in Sedgwick County, Kansas, United States. As of the 2020 census, the population of the city was 806. Mount Hope was founded in 1874. Mount Hope is located at 37°52′9″N 97°39′53″W / 37.86917°N 97.66472°W. According to the United States Census Bureau, the city has a total area of 1.48 square miles, of which, 1.45 square miles is land and 0.03 square miles is water.