Chickasha, OK

ZIP code 73018 serves Chickasha, in Grady County, southwestern Oklahoma. Notable sites in the area include the University of Science and Arts of Oklahoma, the Grady County Fairgrounds, and Shannon Springs Park, which hosts the annual Chickasha Festival of Light. The ZIP code also encompasses downtown Chickasha and the Grady County Historical Society Museum, highlighting the city’s educational, civic, and regional-history roles.