Oklahoma Congressional Delegation: 5 Representatives, 2 Senators
Embed this widgetLast updated: 2026-09-07
House Delegation
5
U.S. Representatives
5 Republicans
Senate Delegation
2
U.S. Senators
2 Republicans
Delegation at a Glance
Oklahoma sends 7 members to Congress: 5 representatives in the House (5 Republicans) and 2 Senators in the Senate (2 Republicans).
- With 5 U.S. Representatives, Oklahoma has the 28th-largest House delegation among the 50 states (tied with 1 other state).
- Members of Oklahoma's delegation have served an average of 14.5 years in Congress.
State Highlights
- Frank Lucas is Oklahoma's longest-serving current member of Congress — in office since 1993 (33 years total).
- In the 2024 presidential election, Trump carried Oklahoma by 33.5 points.
- Alan Armstrong is on the ballot for re-election in 2026.
Oklahoma has 5 representatives in the U.S. House. Oklahoma is represented by 2 U.S. Senators: Alan Armstrong (Republican) and James Lankford (Republican). Senators serve 6-year terms and representatives serve 2-year terms — see term end dates and election timing for each seat below.
Learn more about congressional term lengths, the Senate class schedule, or the upcoming 2026 election cycle.
2026 Election Picture for Oklahoma
Oklahoma's 2026 primary was held on June 16, 2026. Alan Armstrong (Republican) is up for re-election to the U.S. Senate in 2026. All 5 of Oklahoma's U.S. House seats are on the ballot in 2026, since House terms are two years. The general election is November 3, 2026.
2026 is a midterm election year — it falls in the middle of the presidential term, so there is no presidential race on Oklahoma's 2026 ballot. Every U.S. House seat nationwide is on the ballot every two years, and roughly a third of U.S. Senate seats — whichever class is next in rotation — are up in every congressional election, midterm or presidential.
Full Oklahoma 2026 primary details · Election Day countdown · How midterm elections work
Senate Class Breakdown
U.S. Senators serve staggered 6-year terms split into three classes, so a state's two Senate seats usually aren't on the ballot in the same year. Oklahoma's two Senate seats are staggered across different classes.
The staggered system dates to the Constitution's framers, who wanted the Senate to change gradually rather than all at once — unlike the House, where every seat turns over every two years. Roughly one-third of the Senate's 100 seats (whichever class is next up) is on the ballot in any given election year, which is why only some states have a Senate race in any particular cycle.
- Alan Armstrong is Class 2 — next up for election in 2026.
- James Lankford is Class 3 — next up for election in 2028.
Learn more about the Senate class schedule.
Senators
Representatives
5 total
How to Contact Oklahoma's Delegation
Every member of Congress can be reached through the U.S. Capitol switchboard at (202) 224-3121 — ask the operator to connect you to any senator or representative by name, and you will be transferred directly to their office. Each member listed above also has a direct Washington, D.C. office line on their individual page, which staff typically answer during business hours (9am–5pm Eastern).
Congressional staff log the position of every caller, so calling or writing is one of the most direct ways for a constituent to weigh in on legislation before Oklahoma's delegation votes on it.
Related
Frequently Asked Questions
Who are Oklahoma's senators?
As of 2026-09-07, Oklahoma's U.S. Senators are Alan Armstrong (Republican) and James Lankford (Republican). Party breakdown: 2 Republicans.
How many representatives does Oklahoma have?
Oklahoma has 5 representatives in the U.S. House as of 2026-09-07, the 28th-largest House delegation among the 50 states (tied with 1 other state). House seats are reapportioned among the states after each decennial census based on population.
When is Oklahoma's 2026 primary?
Oklahoma's 2026 primary was held on June 16, 2026. A U.S. Senate seat is on the ballot this cycle, and all 5 of Oklahoma's U.S. House seats are also up for election in 2026, since House terms are two years.
Is Oklahoma's congressional delegation Democratic or Republican?
As of 2026-09-07, Oklahoma's entire congressional delegation — all 7 members — is Republican, giving Republicans unified control of Oklahoma's seats in Congress.
Who represents Oklahoma in Congress?
Oklahoma is represented in Congress by 5 U.S. Representatives in the House (5 Republicans) and 2 U.S. Senators in the Senate. See the full current roster below, including term end dates and contact information.