Kiefer is a town in Creek County, Oklahoma, United States. The population was 1,685 at the 2010 census, an increase of 64.2 percent from 1,026 at the 2000 census.HistoryKiefer was originally known as "Praper" when a post office was first established in 1901. The St. Louis, Oklahoma and Southern Railway (later the St. Louis and San Francisco Railway) constructed a line south from Sapulpa through Praper between 1900 and 1901. It became an oil boom town by 1906, when it became a major shipping point for crude from the Glenn Pool field. The post office was renamed "Kiefer" on December 12, 1906. According to the Encyclopedia of Oklahoma History and Culture, the name honored at least one of three different people named Kiefer who lived in the area.Kiefer voted to incorporate on November 20, 1908. The 1910 census reported a population of 1,197 inhabitants. This increased to 1,663 in 1920.GeographyKiefer is located in eastern Creek County at . U.S. Highway 75A passes through the center of the town, leading north 5mi to the center of Sapulpa, the county seat, and south 5mi to Mounds. Oklahoma State Highway 67 leads east from Kiefer 3mi to the U.S. Route 75 freeway in Glenpool. Via Highways 67 and 75 it is north to downtown Tulsa.
