List of United States senators from Arizona

Arizona was admitted to the Union on February 14, 1912. U.S. senators from Arizona belong to Class 1 and Class 3 and are popularly elected for a six-year term beginning January 3. Elections are held the first Tuesday after November 1. The state's current U.S. senators are Democrat Kyrsten Sinema and Republican Martha McSally, both serving since 2019, making it one of nine states to have a split United States Senate delegation.

Current delegation

Kyrsten Sinema (D)

Martha McSally (R)

List of senators

Class 1 Class 1 U.S. senators belong to the electoral cycle who were elected for three Congresses in the state's first election of 1912. The seat in recent years has been contested in 2006, 2012 and 2018. The next election will be held in 2024						C	Class 3 Class 3 U.S. senators belong to the electoral cycle who were elected for two Congresses in the state's first election of 1912. The seat in recent years has been contested in 2004, 2010 and 2016. The next election will be a special election in 2020 to fill the remaining two years in John McCain's unfinished term, followed by a regular election in 2022.
#	Senator	Party	Dates in office	Electoral history	T		T	Electoral history	Dates in office	Party	Senator	#
1	Henry F. Ashurst	Democratic	March 27, 1912 – January 3, 1941	Elected in 1912.	1	62nd	1	Elected in 1912.	March 27, 1912 – March 3, 1921	Democratic	Marcus A. Smith	1
						63rd
						64th	2	Re-elected in 1914. Lost re-election.
				Re-elected in 1916.	2	65th
						66th
						67th	3	Elected in 1920. Lost re-election.	March 4, 1921 – March 3, 1927	Republican	Ralph H. Cameron	2
				Re-elected in 1922.	3	68th
						69th
						70th	4	First elected in 1926.	March 4, 1927 – January 3, 1969	Democratic	Carl Hayden	3
				Re-elected in 1928.	4	71st
						72nd
						73rd	5	Re-elected in 1932.
				Re-elected in 1934. Lost renomination.	5	74th
						75th
						76th	6	Re-elected in 1938.
2	Ernest McFarland	Democratic	January 3, 1941 – January 3, 1953	Elected in 1940.	6	77th
						78th
						79th	7	Re-elected in 1944.
				Re-elected in 1946. Lost re-election.	7	80th
						81st
						82nd	8	Re-elected in 1950.
3	Barry Goldwater	Republican	January 3, 1953 – January 3, 1965	First elected in 1952.	8	83rd
						84th
						85th	9	Re-elected in 1956.
				Re-elected in 1958. Retired to run for U.S. President.	9	86th
						87th
						88th	10	Re-elected in 1962. Retired.
4	Paul Fannin	Republican	January 3, 1965 – January 3, 1977	First elected in 1964.	10	89th
						90th
						91st	11	Elected again in 1968.	January 3, 1969 – January 3, 1987	Republican	Barry Goldwater	4
				Re-elected in 1970. Retired.	11	92nd
						93rd
						94th	12	Re-elected in 1974.
5	Dennis DeConcini	Democratic	January 3, 1977 – January 3, 1995	First elected in 1976.	12	95th
						96th
						97th	13	Re-elected in 1980. Retired.
				Re-elected in 1982.	13	98th
						99th
						100th	14	Elected in 1986.	January 3, 1987 – August 25, 2018	Republican	John McCain	5
				Re-elected in 1988. Retired.	14	101st
						102nd
						103rd	15	Re-elected in 1992.
6	Jon Kyl	Republican	January 3, 1995 – January 3, 2013	Elected in 1994.	15	104th
						105th
						106th	16	Re-elected in 1998.
				Re-elected in 2000.	16	107th
						108th
						109th	17	Re-elected in 2004.
				Re-elected in 2006. Retired.	17	110th
						111th
						112th	18	Re-elected in 2010.
7	Jeff Flake	Republican	January 3, 2013 – January 3, 2019	Elected in 2012. Retired.	18	113th
						114th
						115th	19	Re-elected in 2016. Died in Office.
									August 25, 2018 – September 4, 2018	Vacant
								Appointed to continue McCain's term. Resigned.	September 4, 2018 – December 31, 2018	Republican	Jon Kyl	6
									December 31, 2018 – January 3, 2019	Vacant
8	Kyrsten Sinema	Democratic	January 3, 2019 – Present	Elected in 2018.	19	116th		Appointed to continue McCain's term.	January 3, 2019 – Present	Republican	Martha McSally	7
								To be determined in the 2020 special election.
						117th
						118th	20	To be determined in the 2022 election.
To be determined in the 2024 election.					20	119th
#	Senator	Party	Years in office	Electoral history	T		T	Electoral history	Years in office	Party	Senator	#
Class 1							Class 3

Superlatives (top 5)

Longest service

Senator	First served	Last served	Length of service
Carl Hayden	March 4, 1927	January 3, 1969	41 years, 9 months and 30 days (15,281 days)
John McCain	January 3, 1987	August 25, 2018	31 years, 7 months and 22 days (11,557 days)
Barry Goldwater	January 3, 1953	January 3, 1987	30 years (10,957 days)[lower-alpha 1]
Henry F. Ashurst	March 27, 1912	January 3, 1941	28 years, 9 months and 7 days (10,509 days)
Jon Kyl	January 3, 1995	December 31, 2018	18 years, 4 months and 1 day (6,693 days)[lower-alpha 2]

Shortest service

Does not include incumbents

Senator	First served	Last served	Length of service
Ralph H. Cameron	March 4, 1921	March 3, 1927	5 years, 11 months, 3 weeks and 6 days (2,190 days)
Jeff Flake	January 3, 2013	January 3, 2019	6 years (2,191 days)
Marcus A. Smith	March 27, 1912	March 3, 1921	8 years, 11 months and 4 days (3,263 days)
Ernest McFarland	January 3, 1941	January 3, 1953	12 years (4,383 days)
Paul Fannin	January 3, 1965	January 3, 1977

Youngest at beginning of service

Senator	Date of birth	First served	Age
Henry F. Ashurst	September 13, 1874	March 27, 1912	37 years, 6 months and 14 days
Dennis DeConcini	May 8, 1937	January 3, 1977	39 years, 7 months and 26 days
Kyrsten Sinema	July 12, 1976	January 3, 2019	42 years, 5 months and 22 days
Ernest McFarland	October 9, 1894	January 3, 1941	46 years, 2 months and 25 days
Carl Hayden	October 2, 1877	March 4, 1927	49 years, 5 months and 2 days

Oldest at end of service

Senator	Date of birth	Last served	Age
Carl Hayden	October 2, 1877	January 3, 1969	91 years, 3 months and 1 day
John McCain	August 29, 1936	August 25, 2018	81 years, 11 months and 27 days
Barry Goldwater	January 2, 1909	January 3, 1987	78 years and 1 day
Jon Kyl	April 25, 1942	December 31, 2018	76 years, 8 months and 6 days
Marcus A. Smith	January 24, 1851	March 4, 1921	70 years, 1 month and 8 days

Living former senators

As of August 2020, there are three living former U.S. senators from Arizona. The most recent senator to die was John McCain (served 1987–2018), who died in office on August 25, 2018, and was also the most recently serving senator to die.

Senator	Term of office	Date of birth (and age)
Dennis DeConcini	January 3, 1977 – January 3, 1995	(1937-05-08) May 8, 1937
Jon Kyl	January 3, 1995 – January 3, 2013 September 4, 2018 – December 31, 2018	(1942-04-25) April 25, 1942
Jeff Flake	January 3, 2013 – January 3, 2019	(1962-12-31) December 31, 1962

References

1. Goldwater declined to run for re-election in the Class 1 seat, choosing instead to run unsuccessfully for President. He was once again elected to the Senate in 1968, but spent four years out of office. His length of service pauses on January 3, 1965 and resumes January 3, 1969. Thus, he served only 30 years in the Senate, despite finally leaving 34 years after first assumed office.
2. Kyl retired from the Senate on January 3, 2013, after declining to run for re-election in 2012. Following the death of John McCain, Kyl was nominated by governor Doug Ducey to the vacant seat previously held by McCain on September 4, 2018. Kyl resigned from that seat on December 31, 2018. His length of services pauses on January 3, 2013 and resumes September 4, 2018. Thus, he served only 18 years, 4 months and 1 day in the Senate, despite finally leaving the Senate almost 25 years after he first assumed office.

• "Senate Class I – History". Our Campaigns. Retrieved October 2, 2013.
• "Senate Class III – History". Our Campaigns. Retrieved October 2, 2013.

See also

• List of United States Representatives from Arizona
• United States congressional delegations from Arizona
• Elections in Arizona