Newkirk is a city in Kay County, Oklahoma, United States. The population was 2,243 at the 2000 census. It is the county seat of Kay County.
Newkirk is located at 36°52′59″N 97°3′21″W / 36.88306°N 97.05583°W / 36.88306; -97.05583 (36.883083, -97.055750). According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.4 km²), all of it land.
Newkirk's elevation is 1,152 feet. The town is on mostly flat terrain with no large watercourses nearby. Newkirk is situated at the boundary between two eco-regions: the Central Great Plains and the Flint Hills. West of the town in the Great Plains the countryside is rich agricultural land, especially for wheat, soybeans, and cattle. East of town the terrain in the Flint Hills is more rugged and rocky and is primarily utilized for cattle ranching. Natural vegetation is mostly prairie, but stream valleys often have fine forests of cottonwood, oak, elm, ash, pecan,sycamore, and other species. Scrub oak and Red Cedar dot many hillsides. Wildlife is abundant, including whitetail deer, turkey, bobwhite quail, coyote, bobcat, and waterfowl. A mountain lion attack on a person seven miles east of Newkirk was reported in 2002