Oklahoma's 1st congressional district is in the northeastern corner of the state. Anchored by Tulsa, it is largely coextensive with the Tulsa metropolitan area. The district contains all of Tulsa County as well as portions of Creek, Rogers & Wagoner counties. Although it has long been reckoned as the Tulsa district, a small portion of Tulsa itself is located in the 3rd district.

Principal cities in the district (other than Tulsa) include Broken Arrow, Bixby, Jenks, Owasso, Sand Springs, and Wagoner.

The district is currently represented by Republican Kevin Hern who defeated Democratic nominee Tim Gilpin to replace Jim Bridenstine, who resigned to become NASA Administrator in 2018.^[3]

The district was the only congressional district represented by a Republican upon statehood.^[4] For much of the district's history, it has shifted back and forth between the two political parties. However, it has leaned increasingly Republican since the second half of the 20th century. Since 1945, only one Democrat has served more than one term in the district. It has been in Republican hands without interruption since 1987. Mitt Romney received 66 percent of the vote in this district in 2012.

Oklahoma's longest serving Senator, Jim Inhofe, represented this district from 1987 to 1994. His four successors, Steve Largent, John Sullivan, Jim Bridenstine, and Kevin Hern have all been Republicans.

According to U.S. Census data as of 2010, whites alone make up 67.1% of the population, African Americans 9.0%, Native Americans at 6.6%, Hispanics at 9.8%, Asians at 2.1 and other races at 5.4%.

• Oklahoma's congressional districts
• List of United States congressional districts