Arizona Congressional Delegation: 9 Representatives, 2 Senators
Embed this widgetLast updated: 2026-09-07
House Delegation
9
U.S. Representatives
3 Democrats, 6 Republicans
Senate Delegation
2
U.S. Senators
2 Democrats
Delegation at a Glance
Arizona sends 11 members to Congress: 9 representatives in the House (3 Democrats, 6 Republicans) and 2 Senators in the Senate (2 Democrats).
- With 9 U.S. Representatives, Arizona has the 14th-largest House delegation among the 50 states (tied with 3 other states).
- Members of Arizona's delegation have served an average of 6.5 years in Congress.
State Highlights
- David Schweikert is Arizona's longest-serving current member of Congress — in office since 2011 (15 years total).
- In the 2024 presidential election, Trump carried Arizona by 5.5 points — one of the closest results in the country, making this a key 2026 battleground state.
Arizona has 9 representatives in the U.S. House. Arizona is represented by 2 U.S. Senators: Mark Kelly (Democratic) and Ruben Gallego (Democratic). 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 Arizona
Arizona's 2026 primary was held on July 21, 2026. Arizona does not have a U.S. Senate seat up for election in 2026 — its senators' class isn't on this cycle's ballot. All 9 of Arizona'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 Arizona'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 Arizona 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. Arizona'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.
- Mark Kelly is Class 3 — next up for election in 2028.
- Ruben Gallego is Class 1 — next up for election in 2030.
Learn more about the Senate class schedule.
Senators
Representatives
9 total
How to Contact Arizona'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 Arizona's delegation votes on it.
Related
Frequently Asked Questions
Who are Arizona's senators?
As of 2026-09-07, Arizona's U.S. Senators are Mark Kelly (Democratic) and Ruben Gallego (Democratic). Party breakdown: 2 Democrats.
How many representatives does Arizona have?
Arizona has 9 representatives in the U.S. House as of 2026-09-07, the 14th-largest House delegation among the 50 states (tied with 3 other states). House seats are reapportioned among the states after each decennial census based on population.
When is Arizona's 2026 primary?
Arizona's 2026 primary was held on July 21, 2026. All 9 of Arizona's U.S. House seats are also up for election in 2026, since House terms are two years.
Is Arizona's congressional delegation Democratic or Republican?
Arizona's delegation is split between parties as of 2026-09-07: House — 3 Democrats, 6 Republicans; Senate — 2 Democrats.
Who represents Arizona in Congress?
Arizona is represented in Congress by 9 U.S. Representatives in the House (3 Democrats, 6 Republicans) and 2 U.S. Senators in the Senate. See the full current roster below, including term end dates and contact information.