Oklahoma City is bigger than Wichita. According to the United States Census Bureau, as of the 2020, Oklahoma City has a population of approximately 661,614, while Wichita has a population of approximately 389,255. In terms of land area, Oklahoma City is also larger than Wichita, with a land area of approximately 621.4 square miles, compared to Wichita’s land area of approximately 163.59 square miles (423.7 square kilometers). Oklahoma City is the capital and largest city of the state of Oklahoma, and serves as a hub for business, culture, and tourism in the region.