# Women in the United States Senate

This article covers the history of women in the United States Senate and various milestones achieved by female senators. It includes a list of all women who have served in the Senate, a list of current female senators, and a list of states represented by women in the Senate. The first female U.S. senator, Rebecca Latimer Felton, represented Georgia for a single day in 1922, and the first woman elected to the Senate, Hattie Caraway, was elected from Arkansas in 1932. As of January 2025, 64 women have served in the upper house of the United States Congress, of which 26 (16 Democrats and 10 Republicans) are currently serving (out of 100 possible seats).
Nancy Kassebaum (born July 29, 1932) is the oldest living former female member of the Senate at the age of 92.

## History

For its first 130 years in existence, the Senate's membership was entirely male. Until 1920, few women ran for the Senate. Until the 1990s, very few were elected. This was due to many factors, including the lack of women's suffrage in many states until the ratification of the Nineteenth Amendment to the United States Constitution, women's limited access to higher education until the mid-1900s, public perceptions of gender roles, and barriers to women's advancement such as sex discrimination.
The first time a woman was nominated for the Senate was in 1893 in Wyoming, where women had had the vote since 1869. The nomination happened via a party caucus, since this was before 1913 when the Seventeenth Amendment established popular elections for Senators. Mary Jane Bartlett was nominated by the Wyoming Populists, receiving their unanimous nomination. However, the Wyoming legislature was deadlocked for weeks of voting on their senators: Republicans, Democrats, and Populists mostly backed their own candidates. Bartlett received all six populist votes on a number of ballots in the legislature, but time ran out to choose the senator, and Wyoming ended up serving with only one senator, rather than two, that term.
The first woman to serve in the U.S. Senate was Rebecca Latimer Felton; she represented Georgia for one day as a symbolic gesture in 1922. Ten years later, Hattie Caraway became the first woman to win election to the Senate, representing Arkansas. She first filled the vacancy caused by her husband's death, and then was elected to two full terms. In 1949, Margaret Chase Smith began her service in the Senate; she was the first woman to serve in both the House and Senate. Her 1960 reelection bid resulted in Chase Smith winning the nation's first-ever United States Senate election with two female major party nominees. In 1972, Elaine Edwards was appointed as the first Catholic woman in the Senate by her husband, the Governor of Louisiana, while she was Louisiana's First Lady; she retired after three months. In 1978, Muriel Humphrey became the first and only Second Lady to serve in the United States Senate, after Hubert Humphrey's unexpected death in office. Humphrey Brown was appointed by the Governor of Minnesota to fill her late husband's Senate seat; she served for less than one year and did not seek to be elected to her husband's seat.
In 1978, Nancy Kassebaum became the first woman ever elected to a full term in the Senate, representing Kansas, without her husband having previously served in Congress. Since the beginning of Kassebaum's service in December 1978, there has always been at least one woman in the Senate. The first woman to be elected to the Senate without any family connections was Florida Republican Paula Hawkins, elected in 1980. She was also the first and, to date, only female member of the Church of Jesus Christ of Latter-day Saints elected to the United States Senate. In 1990, there were still few women in the Senate as compared to the number of women in the House. The trend of few women in the Senate began to change in the wake of the Clarence Thomas Supreme Court nomination hearings and the subsequent election of the 103rd United States Congress in 1992, which was dubbed the "Year of the Woman." Barbara Mikulski was reelected and four new Democratic women were elected to the Senate. They were Patty Murray of Washington, Carol Moseley Braun of Illinois, Dianne Feinstein of California, and Barbara Boxer of California. Carol Moseley Braun was the first woman of color to serve in the Senate and the first woman to defeat an incumbent senator after she won the 1992 Democratic primary election over Alan J. Dixon. Later in 1992, Feinstein was the first woman to defeat an incumbent senator from a different party when she defeated John Seymour in a special election. Feinstein entered the Senate the same year as the first female Jewish senator.
Bathroom facilities for women in the Senate on the Senate chamber level were first provided in 1992. Women were not allowed to wear pants on the Senate floor until 1993. In 1993, Senators Barbara Mikulski and Carol Moseley Braun wore pants onto the floor in defiance of the rule, and female support staff followed soon after, with the rule being amended later that year by Senate Sergeant-at-Arms Martha Pope to allow women to wear pants on the floor so long as they also wore a jacket.
The first time two female senators from the same state served concurrently was in 1993; Dianne Feinstein and Barbara Boxer (both D-CA) were both elected in 1992, with Feinstein taking office that same year (as the result of a special election) and Boxer taking office in 1993. Boxer served until 2016, when she retired, and Feinstein was then joined by Kamala Harris. In June 1993, Kay Bailey Hutchison won a special election in Texas, and joined Kassebaum as a fellow female Republican senator. These additions significantly diminished the popular perception of the Senate as an exclusive "boys' club". Since 1992, there has been at least one new woman elected to the Senate every two years, with the exception of 2004 (Lisa Murkowski was elected for the first time in 2004, but had been appointed to the seat since 2002).
Olympia Snowe of Maine arrived in the Senate in 1995, having previously served in the US House of Representatives and both houses of the Maine state legislature. She and later Debbie Stabenow of Michigan, Kyrsten Sinema of Arizona, and Cynthia Lummis of Wyoming are the only women to have served in both houses of a state legislature and both houses of the federal legislature. In 2000, Stabenow and Maria Cantwell became the first women to defeat incumbent elected senators in a general election, unseating Senators Spencer Abraham and Slade Gorton respectively. Hillary Clinton is the first and only First Lady to run for or win a Senate seat. Clinton joined the Senate in 2001, becoming the first female senator from New York, and served until 2009, when she resigned to become the 67th United States Secretary of State, under President Barack Obama. She was replaced by Kirsten Gillibrand, who has been elected three times and was herself a candidate for president in the 2020 Democratic Party presidential primaries.
In 2008, Kay Hagan became the first woman to unseat a female incumbent, Elizabeth Dole. Upon the opening of the 112th United States Congress in 2011, New Hampshire Democrat Jeanne Shaheen was joined by newly elected Republican Kelly Ayotte, making up the first Senate delegation of two women belonging to different parties.
In November 2022, Dianne Feinstein became the longest-serving female senator in history, surpassing Barbara Mikulski, having served for 30 years. Feinstein was retiring at the end of her last term, scheduled for January 3, 2025, but died in office on September 29, 2023, before her term ended. Subsequently, Patty Murray surpassed Feinstein as the longest serving woman senator, and continues to serve.
In 2012, a record five new female senators were elected. This beat the record of four new female senators from 1992 and set the record of five new women and eleven female senators in one Senate class. The five new women were Democrats Tammy Baldwin of Wisconsin, Heidi Heitkamp of North Dakota, Mazie Hirono of Hawaii, Elizabeth Warren of Massachusetts, and Republican Deb Fischer of Nebraska. Hirono was the first Asian-American woman and first Buddhist in the Senate, and Baldwin was the first openly gay person in the Senate.
In 2014, Joni Ernst was elected as the first female combat veteran to serve in the Senate. In 2016, Catherine Cortez Masto was elected as the first Latina senator, while Tammy Duckworth was elected as the first female double amputee in the Senate. In a June 2016 primary election, as a result of California's recent establishment of the top-two primary, Attorney General of California Kamala Harris and U.S. Representative Loretta Sanchez became the first women of the same party to advance to a Senate general election. In November 2016, Harris became the first woman to defeat a woman of the same party in a Senate general election.
In 2016, Hillary Clinton became the first former female senator to win a major party's nomination for President of the United States. Despite winning a plurality of the popular vote, she ultimately lost her bid to Donald Trump.
Starting in 2017, United States Senators Jeanne Shaheen and Maggie Hassan of New Hampshire, have held the distinction of being the first and second women elected as both the governor of a state and a United States senator from a state; both served as Governor of New Hampshire before their time in the Senate. Additionally, in 2024, former U.S. Senator Kelly Ayotte was elected Governor of New Hampshire, becoming the third woman and first Republican woman to hold this distinction.
In 2018, Kyrsten Sinema defeated Martha McSally, becoming Arizona's first female senator, as well as the first openly bisexual senator from any state. Two weeks later, Arizona Governor Doug Ducey announced that he would appoint McSally to Arizona's other Senate seat, which was becoming vacant with the resignation of Jon Kyl. Sinema and McSally have been the only concurrently serving female senators to have previously faced off against each other in a Senate election. McSally exited the Senate in late 2020 after losing that year's special election to Mark Kelly, a Democrat.
Also in 2018, Jacky Rosen made political history as the first female one-term outgoing U.S. representative ever elected to the Senate.
In 2023, Patty Murray became the first woman to serve as president pro tempore, a role traditionally given to the most senior member of the majority party in the United States Senate. Dianne Feinstein was the most senior Democratic senator but declined to serve. This made Murray the third person in line to become president, after the vice president and the Speaker of the House.
Sixty women have served in the United States Senate since its establishment in 1789. Cumulatively, 36 female U.S. senators have been Democrats, while 23 have been Republicans and one is an independent. As of 2023, no female U.S. senator has ever won election to the House after her Senate term, resigned from a state governorship for the purpose of a Senate appointment by her successor, also won election as an independent or to represent more than one state in non-consecutive elections, served both seats of a state at different times, or represented a third party in her career. In December 2022, Senator Kyrsten Sinema became the first female senator to switch her party affiliation while in office. In September 2023, Senator Dianne Feinstein became the first female senator to die in office.
Some female U.S. senators have later run for U.S. president or vice president—see list of female United States presidential and vice presidential candidates. In 2020, Kamala Harris became the first female senator, current or past, to win her vice presidential election bid and become the first female President of the United States Senate.

## Election, selection, and family

Women are much less likely than men to decide to run for election, despite generally having the same chances of winning elections as male counterparts. Research by Jennifer Lawless and Richard Fox shine light on a few possible reasons. Women report much less enthusiasm for the motions of campaigning (such as fundraising or attending rallies) than men. They are more likely than men to decide not to campaign based on lack of resources. They are also much more likely than men to view themselves as lacking credentials, and time (even women with full-time jobs report spending more time on household chores than men). Finally, they are more likely than men to view races as competitive.
Before 2001, a plurality of women joined the U.S. Senate through appointment following the death or resignation of a husband or father who previously held the seat. An example is Muriel Humphrey (D-MN), the widow of former senator and Vice President Hubert Humphrey; she was appointed to fill his seat until a special election was held (in which she did not run). However, with the election of three women in 2000, the balance shifted; more women have now entered service as a senator by winning elections than by being appointed.
Recent examples of selection include Jean Carnahan and Lisa Murkowski. In 2000, Jean Carnahan (D-MO) was appointed to fill the Senate seat won by her recently deceased husband, Mel Carnahan. Carnahan—even though dead—defeated the incumbent senator, John Ashcroft. Carnahan's widow was named to fill his seat by Governor of Missouri Roger Wilson until a special election was held. However, she lost the subsequent 2002 special election to fill out the rest of the six-year term. In 2002, Lisa Murkowski (R-AK) was appointed by her father Governor of Alaska Frank Murkowski, who had resigned from the Senate to become governor, to serve the remaining two years of his term. Lisa Murkowski defeated former governor Tony Knowles in her election bid in 2004.
Two recent members of the Senate brought with them a combination of name recognition resulting from the political careers of their famous husbands and their own substantial experience in public affairs. The first, former senator Elizabeth Dole (R-NC), was married to former Senate Majority Leader and 1996 Republican presidential candidate Bob Dole (R-KS) and served as United States Secretary of Transportation under President Ronald Reagan and Secretary of Labor under President George H.W. Bush; she later ran a losing bid for the Republican presidential nomination in 2000. The other, former senator Hillary Clinton (D-NY), wife of former president Bill Clinton, was First Lady of the United States and First Lady of Arkansas before taking her seat in 2000. She too ran an unsuccessful campaign for her party's presidential nomination in 2008; she resigned in 2009 to become the secretary of state for the eventual victor of that election, Barack Obama. In 2016, she ran a successful campaign for her party's presidential nomination, eventually losing in the general election to Republican nominee Donald Trump.
Another famous name is Nancy Kassebaum (R-KS), the daughter of former Kansas governor and one-time presidential candidate Alf Landon. After retiring from the Senate, she married former senator Howard Baker (R-TN). Kassebaum has the distinction of being the first female elected senator who did not succeed her husband in Congress (Margaret Chase Smith was only elected to the Senate after succeeding her husband to his House seat).
Among the women elected or appointed in Senate history, by stature, Barbara Boxer (D-CA) and Barbara Mikulski (D-MD) are the shortest, at 4 feet 11 inches (1.50 m), whereas Kelly Loeffler (R-GA) is the tallest, at 5 feet 11 inches (1.80 m).

## List of female U.S. senators

| Portrait | Name (lifespan) | State | Term | Term | Term | Entered by | Left for | Party |
| Portrait | Name (lifespan) | State | Term start | Term end | Length of service (days) | Entered by | Left for | Party |
| | Rebecca Felton (1835–1930) | Georgia | November 21, 1922 | November 22, 1922 | 1 (1 day) | Appointment by Thomas W. Hardwick | Appointment ended | Democratic |
| | Hattie Caraway (1878–1950) | Arkansas | November 13, 1931 | January 3, 1945 | 4,800 (13 years, 51 days) | Appointment by Harvey Parnell | Lost renomination | Democratic |
| | Rose Long (1892–1970) | Louisiana | January 31, 1936 | January 3, 1937 | 338 (338 days) | Appointment by James Noe | Retired | Democratic |
| | Dixie Graves (1882–1965) | Alabama | August 20, 1937 | January 10, 1938 | 143 (143 days) | Appointment by Bibb Graves | Appointment ended | Democratic |
| | Gladys Pyle (1890–1989) | South Dakota | November 9, 1938 | January 3, 1939 | 55 (55 days) | Special election | Retired | Republican |
| | Vera C. Bushfield (1889–1976) | South Dakota | October 6, 1948 | December 26, 1948 | 81 (81 days) | Appointment by George Mickelson | Appointment ended | Republican |
| | Margaret Chase Smith (1897–1995) | Maine | January 3, 1949 | January 3, 1973 | 8,766 (24 years, 0 days) | Election | Lost reelection | Republican |
| | Eva Bowring (1892–1985) | Nebraska | April 16, 1954 | November 7, 1954 | 205 (205 days) | Appointment by Robert B. Crosby | Appointment ended | Republican |
| | Hazel Abel (1888–1966) | Nebraska | November 8, 1954 | December 31, 1954 | 53 (53 days) | Special election | Retired and resigned early | Republican |
| | Maurine Neuberger (1907–2000) | Oregon | November 9, 1960 | January 3, 1967 | 2,246 (6 years, 55 days) | Special election | Retired | Democratic |
| | Elaine Edwards (1929–2018) | Louisiana | August 1, 1972 | November 13, 1972 | 104 (104 days) | Appointment by Edwin Edwards | Appointment ended | Democratic |
| | Muriel Humphrey (1912–1998) | Minnesota | January 25, 1978 | November 7, 1978 | 286 (286 days) | Appointment by Rudy Perpich | Appointment ended | Democratic |
| | Maryon Allen (1925–2018) | Alabama | June 8, 1978 | November 7, 1978 | 152 (152 days) | Appointment by George Wallace | Lost nomination to finish term | Democratic |
| | Nancy Kassebaum (born 1932) | Kansas | December 23, 1978 | January 3, 1997 | 6,586 (18 years, 11 days) | Election | Retired | Republican |
| | Paula Hawkins (1927–2009) | Florida | January 1, 1981 | January 3, 1987 | 2,193 (6 years, 2 days) | Election | Lost reelection | Republican |
| | Barbara Mikulski (born 1936) | Maryland | January 3, 1987 | January 3, 2017 | 10,959 (30 years, 0 days) | Election | Retired | Democratic |
| | Jocelyn Burdick (1922–2019) | North Dakota | September 12, 1992 | December 14, 1992 | 93 (93 days) | Appointment by George Sinner | Appointment ended | Democratic–NPL |
| | Dianne Feinstein (1933–2023) | California | November 4, 1992 | September 29, 2023 | 11,286 (30 years, 329 days) | Special election | Died in office | Democratic |
| | Barbara Boxer (born 1940) | California | January 3, 1993 | January 3, 2017 | 8,767 (24 years, 0 days) | Election | Retired | Democratic |
| | Carol Moseley-Braun (born 1947) | Illinois | January 3, 1993 | January 3, 1999 | 2,191 (6 years, 0 days) | Election | Lost reelection | Democratic |
| | Patty Murray (born 1950) | Washington | January 3, 1993 | present | 11,762 (32 years, 74 days) | Election | Incumbent | Democratic |
| | Kay Hutchison (born 1943) | Texas | June 14, 1993 | January 3, 2013 | 7,143 (19 years, 203 days) | Special election | Retired | Republican |
| | Olympia Snowe (born 1947) | Maine | January 3, 1995 | January 3, 2013 | 6,576 (18 years, 0 days) | Election | Retired | Republican |
| | Sheila Frahm (born 1945) | Kansas | June 11, 1996 | November 6, 1996 | 148 (148 days) | Appointment by Bill Graves | Lost nomination to finish term | Republican |
| | Susan Collins (born 1952) | Maine | January 3, 1997 | present | 10,301 (28 years, 74 days) | Election | Incumbent | Republican |
| | Mary Landrieu (born 1955) | Louisiana | January 3, 1997 | January 3, 2015 | 6,575 (18 years, 0 days) | Election | Lost reelection | Democratic |
| | Blanche Lincoln (born 1960) | Arkansas | January 3, 1999 | January 3, 2011 | 4,383 (12 years, 0 days) | Election | Lost reelection | Democratic |
| | Maria Cantwell (born 1958) | Washington | January 3, 2001 | present | 8,840 (24 years, 74 days) | Election | Incumbent | Democratic |
| | Jean Carnahan (1933-2024) | Missouri | January 3, 2001 | November 23, 2002 | 689 (1 year, 324 days) | Appointment by Roger B. Wilson | Lost election to finish term | Democratic |
| | Hillary Clinton (born 1947) | New York | January 3, 2001 | January 21, 2009 | 2,940 (8 years, 18 days) | Election | Resigned to become United States Secretary of State | Democratic |
| | Debbie Stabenow (born 1950) | Michigan | January 3, 2001 | January 3, 2025 | 8,766 (24 years, 0 days) | Election | Retired | Democratic |
| | Lisa Murkowski (born 1957) | Alaska | December 20, 2002 | present | 8,124 (22 years, 88 days) | Appointment by Frank Murkowski | Incumbent | Republican |
| | Elizabeth Dole (born 1936) | North Carolina | January 3, 2003 | January 3, 2009 | 2,192 (6 years, 0 days) | Election | Lost reelection | Republican |
| | Amy Klobuchar (born 1960) | Minnesota | January 3, 2007 | present | 6,649 (18 years, 74 days) | Election | Incumbent | Democratic |
| | Claire McCaskill (born 1953) | Missouri | January 3, 2007 | January 3, 2019 | 4,383 (12 years, 0 days) | Election | Lost reelection | Democratic |
| | Jeanne Shaheen (born 1947) | New Hampshire | January 3, 2009 | present | 5,918 (16 years, 74 days) | Election | Incumbent | Democratic |
| | Kay Hagan (1953–2019) | North Carolina | January 3, 2009 | January 3, 2015 | 2,191 (6 years, 0 days) | Election | Lost reelection | Democratic |
| | Kirsten Gillibrand (born 1966) | New York | January 26, 2009 | present | 5,895 (16 years, 51 days) | Appointment by David Paterson | Incumbent | Democratic |
| | Kelly Ayotte (born 1968) | New Hampshire | January 3, 2011 | January 3, 2017 | 2,192 (6 years, 0 days) | Election | Lost reelection | Republican |
| | Tammy Baldwin (born 1962) | Wisconsin | January 3, 2013 | present | 4,457 (12 years, 74 days) | Election | Incumbent | Democratic |
| | Deb Fischer (born 1951) | Nebraska | January 3, 2013 | present | 4,457 (12 years, 74 days) | Election | Incumbent | Republican |
| | Heidi Heitkamp (born 1955) | North Dakota | January 3, 2013 | January 3, 2019 | 2,191 (6 years, 0 days) | Election | Lost reelection | Democratic–NPL |
| | Mazie Hirono (born 1947) | Hawaii | January 3, 2013 | present | 4,457 (12 years, 74 days) | Election | Incumbent | Democratic |
| | Elizabeth Warren (born 1949) | Massachusetts | January 3, 2013 | present | 4,457 (12 years, 74 days) | Election | Incumbent | Democratic |
| | Joni Ernst (born 1970) | Iowa | January 3, 2015 | present | 3,727 (10 years, 74 days) | Election | Incumbent | Republican |
| | Shelley Moore Capito (born 1953) | West Virginia | January 3, 2015 | present | 3,727 (10 years, 74 days) | Election | Incumbent | Republican |
| | Catherine Cortez Masto (born 1964) | Nevada | January 3, 2017 | present | 2,996 (8 years, 74 days) | Election | Incumbent | Democratic |
| | Tammy Duckworth (born 1968) | Illinois | January 3, 2017 | present | 2,996 (8 years, 74 days) | Election | Incumbent | Democratic |
| | Kamala Harris (born 1964) | California | January 3, 2017 | January 18, 2021 | 1,476 (4 years, 15 days) | Election | Resigned to become Vice President of the United States | Democratic |
| | Maggie Hassan (born 1958) | New Hampshire | January 3, 2017 | present | 2,996 (8 years, 74 days) | Election | Incumbent | Democratic |
| | Tina Smith (born 1958) | Minnesota | January 3, 2018 | present | 2,631 (7 years, 74 days) | Appointment by Mark Dayton | Incumbent | Democratic |
| | Cindy Hyde-Smith (born 1959) | Mississippi | April 2, 2018 | present | 2,542 (6 years, 350 days) | Appointment by Phil Bryant | Incumbent | Republican |
| | Marsha Blackburn (born 1952) | Tennessee | January 3, 2019 | present | 2,266 (6 years, 74 days) | Election | Incumbent | Republican |
| | Kyrsten Sinema (born 1976) | Arizona | January 3, 2019 | January 3, 2025 | 2,192 (6 years, 0 days) | Election | Retired | Democratic (2019–2022) |
| | Kyrsten Sinema (born 1976) | Arizona | January 3, 2019 | January 3, 2025 | 2,192 (6 years, 0 days) | Election | Retired | Independent (2022–2025) |
| | Martha McSally (born 1966) | Arizona | January 3, 2019 | December 2, 2020 | 699 (1 year, 334 days) | Appointment by Doug Ducey | Lost election to finish term | Republican |
| | Jacky Rosen (born 1957) | Nevada | January 3, 2019 | present | 2,266 (6 years, 74 days) | Election | Incumbent | Democratic |
| | Kelly Loeffler (born 1970) | Georgia | January 6, 2020 | January 20, 2021 | 380 (1 year, 14 days) | Appointment by Brian Kemp | Lost election to finish term | Republican |
| | Cynthia Lummis (born 1954) | Wyoming | January 3, 2021 | present | 1,535 (4 years, 74 days) | Election | Incumbent | Republican |
| | Katie Britt (born 1982) | Alabama | January 3, 2023 | present | 805 (2 years, 74 days) | Election | Incumbent | Republican |
| | Laphonza Butler (born 1979) | California | October 1, 2023 | December 8, 2024 | 434 (1 year, 68 days) | Appointment by Gavin Newsom | Appointment ended | Democratic |
| | Angela Alsobrooks (born 1971) | Maryland | January 3, 2025 | present | 74 (74 days) | Election | Incumbent | Democratic |
| | Lisa Blunt Rochester (born 1962) | Delaware | January 3, 2025 | present | 74 (74 days) | Election | Incumbent | Democratic |
| | Elissa Slotkin (born 1976) | Michigan | January 3, 2025 | present | 74 (74 days) | Election | Incumbent | Democratic |
| | Ashley Moody (born 1975) | Florida | January 21, 2025 | present | 56 (56 days) | Appointment by Ron DeSantis | Incumbent | Republican |

## Currently serving female U.S. senators

There are 26 women currently serving in the United States Senate. This is the highest number of women to have served concurrently in U.S. Senate history. Sixteen are Democrats and ten are Republicans.
The record was first achieved in January 2020 when Kelly Loeffler was appointed to the Senate from Georgia, increasing the number of women in the Senate from 25 to 26. The number fell back to 25 on December 2 of the same year when Martha McSally's appointment ended after she lost an election to finish John McCain's unexpired term. The record of 26 was reached again on January 3, 2021, when Cynthia Lummis, the first female senator from Wyoming, began her term. The record was sustained for only 15 days, as the number of concurrently serving women dropped again to 25 when Kamala Harris resigned her Senate seat on January 18 in anticipation of the scheduled commencement of her term as vice president (and thus president of the Senate) on January 20.
The record of 26 concurrently serving women was reached a third time on January 21, 2025 when Ashley Moody was appointed to the Senate from Florida (see the histograph of the number of female Senators).
As of January 2025, four states: (Minnesota, Nevada, New Hampshire, and Washington) are represented by two female U.S. senators (see appropriate section).
11 of the women currently serving in the Senate have previously served in the U.S. House of Representatives: Senators Cantwell, Gillibrand, Baldwin, Hirono, Moore Capito, Duckworth, Rosen, Blackburn, Lummis, Blunt Rochester, and Slotkin.
| Class | State | Name | Party | Prior experience | First took office | Born |
| 3 | Alabama | Katie Britt | Republican | CEO of the Business Council of Alabama, chief of staff to predecessor Richard Shelby | 2023 (age 40) | 1982 |
| 3 | Alaska | Lisa Murkowski | Republican | Alaska House of Representatives | 2002 (age 45) | 1957 |
| 1 | Delaware | Lisa Blunt Rochester | Democratic | Delaware Secretary of Labor, U.S. House of Representatives | 2025 (age 62) | 1962 |
| 3 | Florida | Ashley Moody | Republican | Florida Attorney General | 2025 (age 49) | 1975 |
| 1 | Hawaii | Mazie Hirono | Democratic | Hawaii House of Representatives, Lieutenant Governor of Hawaii, gubernatorial nominee, U.S. House of Representatives | 2013 (age 65) | 1947 |
| 3 | Illinois | Tammy Duckworth | Democratic | U.S. House of Representatives | 2017 (age 48) | 1968 |
| 2 | Iowa | Joni Ernst | Republican | Montgomery County Auditor, Iowa Senate | 2015 (age 44) | 1970 |
| 2 | Maine | Susan Collins | Republican | Massachusetts Deputy Treasurer, gubernatorial nominee | 1997 (age 44) | 1952 |
| 1 | Maryland | Angela Alsobrooks | Democratic | Prince George's County State Attorney, Prince George's County Executive | 2025 (age 53) | 1971 |
| 1 | Massachusetts | Elizabeth Warren | Democratic | Special advisor to the president for the Consumer Financial Protection Bureau | 2013 (age 63) | 1949 |
| 1 | Michigan | Elissa Slotkin | Democratic | Central Intelligence Agency, Assistant Secretary of Defense (ISA), U.S. House of Representatives | 2025 (age 48) | 1976 |
| 1 | Minnesota | Amy Klobuchar | Democratic-Farmer-Labor | Hennepin County Attorney | 2007 (age 46) | 1960 |
| 2 | Minnesota | Tina Smith | Democratic-Farmer-Labor | Lieutenant Governor of Minnesota | 2018 (age 60) | 1958 |
| 2 | Mississippi | Cindy Hyde-Smith | Republican | Mississippi Senate, Mississippi Commissioner of Agriculture and Commerce | 2018 (age 58) | 1959 |
| 1 | Nebraska | Deb Fischer | Republican | Nebraska Legislature | 2013 (age 61) | 1951 |
| 3 | Nevada | Catherine Cortez Masto | Democratic | Nevada Attorney General | 2017 (age 52) | 1964 |
| 1 | Nevada | Jacky Rosen | Democratic | U.S. House of Representatives | 2019 (age 61) | 1957 |
| 2 | New Hampshire | Jeanne Shaheen | Democratic | New Hampshire Senate, Governor of New Hampshire | 2009 (age 61) | 1947 |
| 3 | New Hampshire | Maggie Hassan | Democratic | New Hampshire Senate, Governor of New Hampshire | 2017 (age 58) | 1958 |
| 1 | New York | Kirsten Gillibrand | Democratic | U.S. House of Representatives | 2009 (age 42) | 1966 |
| 1 | Tennessee | Marsha Blackburn | Republican | Tennessee Senate, U.S. House of Representatives | 2019 (age 66) | 1952 |
| 3 | Washington | Patty Murray | Democratic | Washington Senate | 1993 (age 42) | 1950 |
| 1 | Washington | Maria Cantwell | Democratic | Washington House of Representatives, U.S. House of Representatives | 2001 (age 42) | 1958 |
| 2 | West Virginia | Shelley Moore Capito | Republican | West Virginia House of Delegates, U.S. House of Representatives | 2015 (age 62) | 1953 |
| 1 | Wisconsin | Tammy Baldwin | Democratic | Wisconsin State Assembly, U.S. House of Representatives | 2013 (age 50) | 1962 |
| 2 | Wyoming | Cynthia Lummis | Republican | Wyoming House of Representatives, Wyoming Senate, Wyoming Treasurer, U.S. House of Representatives | 2021 (age 66) | 1954 |

## List of states represented by women

34 states have been represented by female senators. As of January 3, 2025, 21 states are represented by female senators.
| State | Current | Previous | Total | First woman senator | Years represented by female senators | Year first elected a female senator |
| Alabama | 1 | 2 | 3 | Dixie Graves | 1937–1938, 1978, 2023–present | 2022 |
| Alaska | 1 | 0 | 1 | Lisa Murkowski | 2002–present | 2004 |
| Arizona | 0 | 2 | 2 | Kyrsten Sinema & Martha McSally | 2019–2025 | 2018 |
| Arkansas | 0 | 2 | 2 | Hattie Caraway | 1931–1945, 1999–2011 | 1932 |
| California | 0 | 4 | 4 | Dianne Feinstein | 1992–2023, 2023–2024 | 1992 (special) |
| Colorado | 0 | 0 | 0 | | | |
| Connecticut | 0 | 0 | 0 | | | |
| Delaware | 1 | 0 | 1 | Lisa Blunt Rochester | 2025–present | 2024 |
| Florida | 1 | 1 | 2 | Paula Hawkins | 1981–1987, 2025–present | 1980 |
| Georgia | 0 | 2 | 2 | Rebecca Felton | 1922, 2020–2021 | N/A; both female senators were appointed |
| Hawaii | 1 | 0 | 1 | Mazie Hirono | 2013–present | 2012 |
| Idaho | 0 | 0 | 0 | | | |
| Illinois | 1 | 1 | 2 | Carol Moseley-Braun | 1993–1999, 2017–present | 1992 |
| Indiana | 0 | 0 | 0 | | | |
| Iowa | 1 | 0 | 1 | Joni Ernst | 2015–present | 2014 |
| Kansas | 0 | 2 | 2 | Nancy Kassebaum | 1978–1997 | 1978 |
| Kentucky | 0 | 0 | 0 | | | |
| Louisiana | 0 | 3 | 3 | Rose Long | 1936–1937, 1972, 1997–2015 | 1936 (special) |
| Maine | 1 | 2 | 3 | Margaret Chase Smith | 1949–1973, 1995–present | 1948 |
| Maryland | 1 | 1 | 2 | Barbara Mikulski | 1987–2017, 2025–present | 1986 |
| Massachusetts | 1 | 0 | 1 | Elizabeth Warren | 2013–present | 2012 |
| Michigan | 1 | 1 | 2 | Debbie Stabenow | 2001–present | 2000 |
| Minnesota | 2 | 1 | 3 | Muriel Humphrey | 1978, 2007–present | 2006 |
| Mississippi | 1 | 0 | 1 | Cindy Hyde-Smith | 2018–present | 2018 (special) |
| Missouri | 0 | 2 | 2 | Jean Carnahan | 2001–2002, 2007–2019 | 2006 |
| Montana | 0 | 0 | 0 | | | |
| Nebraska | 1 | 2 | 3 | Eva Bowring | 1954, 2013–present | 1954 (special) |
| Nevada | 2 | 0 | 2 | Catherine Cortez Masto | 2017–present | 2016 |
| New Hampshire | 2 | 1 | 3 | Jeanne Shaheen | 2009–present | 2008 |
| New Jersey | 0 | 0 | 0 | | | |
| New Mexico | 0 | 0 | 0 | | | |
| New York | 1 | 1 | 2 | Hillary Clinton | 2001–2009, 2009–present | 2000 |
| North Carolina | 0 | 2 | 2 | Elizabeth Dole | 2003–2015 | 2002 |
| North Dakota | 0 | 2 | 2 | Jocelyn Burdick | 1992, 2013–2019 | 2012 |
| Ohio | 0 | 0 | 0 | | | |
| Oklahoma | 0 | 0 | 0 | | | |
| Oregon | 0 | 1 | 1 | Maurine Neuberger | 1960–1967 | 1960 (special) |
| Pennsylvania | 0 | 0 | 0 | | | |
| Rhode Island | 0 | 0 | 0 | | | |
| South Carolina | 0 | 0 | 0 | | | |
| South Dakota | 0 | 2 | 2 | Gladys Pyle | 1938–1939, 1948 | 1938 (special) |
| Tennessee | 1 | 0 | 1 | Marsha Blackburn | 2019–present | 2018 |
| Texas | 0 | 1 | 1 | Kay Hutchison | 1993–2013 | 1993 (special) |
| Utah | 0 | 0 | 0 | | | |
| Vermont | 0 | 0 | 0 | | | |
| Virginia | 0 | 0 | 0 | | | |
| Washington | 2 | 0 | 2 | Patty Murray | 1993–present | 1992 |
| West Virginia | 1 | 0 | 1 | Shelley Moore Capito | 2015–present | 2014 |
| Wisconsin | 1 | 0 | 1 | Tammy Baldwin | 2013–present | 2012 |
| Wyoming | 1 | 0 | 1 | Cynthia Lummis | 2021–present | 2020 |
| Total | 26 | 38 | 64 | Rebecca Felton | 1922, 1931–1945, 1948–1973, 1978–present | 1932 |

## Graphs
### Histograph

Note: In the graph below, entry dates refer to the date the senator was sworn in, not the date of the appointment, or election.
| Starting | Total | Event |
| March 4, 1789 | 0 | |
| November 21, 1922 | 1 | Rebecca Felton appointed |
| November 22, 1922 | 0 | End of Rebecca Felton's appointment |
| December 9, 1931 | 1 | Hattie Caraway appointed |
| January 31, 1936 | 2 | Rose Long appointed |
| January 3, 1937 | 1 | Rose Long retires |
| August 20, 1937 | 2 | Dixie Graves appointed |
| January 10, 1938 | 1 | End of Dixie Graves's appointment |
| November 9, 1938 | 2 | Gladys Pyle begins service |
| January 3, 1939 | 1 | Gladys Pyle retires |
| January 3, 1945 | 0 | Hattie Caraway ends service |
| October 6, 1948 | 1 | Vera C. Bushfield appointed |
| December 27, 1948 | 0 | End of Vera C. Bushfield's appointment |
| January 3, 1949 | 1 | Margaret Chase Smith begins service |
| April 16, 1954 | 2 | Eva Bowring appointed |
| November 7, 1954 | 1 | End of Eva Bowring's appointment |
| November 8, 1954 | 2 | Hazel Abel begins service |
| December 31, 1954 | 1 | Hazel Abel retires |
| November 9, 1960 | 2 | Maurine Neuberger begins service |
| January 3, 1967 | 1 | Maurine Neuberger retires |
| August 1, 1972 | 2 | Elaine Edwards appointed |
| November 13, 1972 | 1 | End of Elaine Edwards's appointment |
| January 3, 1973 | 0 | Margaret Chase Smith ends service |
| January 25, 1978 | 1 | Muriel Humphrey appointed |
| June 8, 1978 | 2 | Maryon Allen appointed |
| November 7, 1978 | 0 | End of Muriel Humphrey's and Maryon Allen's appointments |
| December 23, 1978 | 1 | Nancy Kassebaum begins service |
| January 1, 1981 | 2 | Paula Hawkins begins service |
| September 16, 1992 | 3 | Jocelyn Burdick appointed |
| November 4, 1992 | 4 | Dianne Feinstein begins service |
| December 14, 1992 | 3 | End of Jocelyn Burdick's appointment |
| January 3, 1993 | 6 | Barbara Boxer, Carol Moseley Braun, and Patty Murray begin service |
| June 14, 1993 | 7 | Kay Hutchison begins service |
| January 3, 1995 | 8 | Olympia Snowe begins service |
| June 11, 1996 | 9 | Sheila Frahm appointed |
| November 6, 1996 | 8 | End of Sheila Frahm's appointment |
| January 3, 1997 | 9 | Susan Collins and Mary Landrieu begin service; Nancy Kassebaum retires |
| January 3, 2001 | 13 | Maria Cantwell, Hillary Clinton, and Debbie Stabenow begin service; Jean Carnahan appointed |
| November 23, 2002 | 12 | End of Jean Carnahan's appointment |
| December 20, 2002 | 13 | Lisa Murkowski appointed |
| January 3, 2003 | 14 | Elizabeth Dole begins service |
| January 3, 2007 | 16 | Amy Klobuchar and Claire McCaskill begin service |
| January 3, 2009 | 17 | Jeanne Shaheen and Kay Hagan begin service; Elizabeth Dole ends service |
| January 21, 2009 | 16 | Hillary Clinton resigns |
| January 26, 2009 | 17 | Kirsten Gillibrand appointed |
| January 3, 2013 | 20 | Tammy Baldwin, Deb Fischer, Heidi Heitkamp, Mazie Hirono, and Elizabeth Warren begin service; Kay Hutchison and Olympia Snowe retire |
| January 3, 2017 | 21 | Catherine Cortez Masto, Tammy Duckworth, Kamala Harris, and Maggie Hassan begin service; Barbara Boxer and Barbara Mikulski retire; Kelly Ayotte ends service |
| January 3, 2018 | 22 | Tina Smith appointed |
| April 9, 2018 | 23 | Cindy Hyde Smith appointed |
| January 3, 2019 | 25 | Marsha Blackburn, Kyrsten Sinema, and Jacky Rosen begin service; Martha McSally appointed; Heidi Heitkamp and Claire McCaskill end service |
| January 6, 2020 | 26 | Kelly Loeffler appointed |
| December 2, 2020 | 25 | End of Martha McSally's appointment |
| January 3, 2021 | 26 | Cynthia Lummis begins service |
| January 18, 2021 | 25 | Kamala Harris resigns |
| January 20, 2021 | 24 | End of Kelly Loeffler's appointment |
| December 9, 2022 | 24 | Kyrsten Sinema party change |
| January 3, 2023 | 25 | Katie Britt begins service |
| September 29, 2023 | 24 | Death of Dianne Feinstein |
| October 3, 2023 | 25 | Laphonza Butler appointed |
| December 8, 2024 | 24 | End of Laphonza Butler's appointment |
| January 3, 2025 | 25 | Angela Alsobrooks, Lisa Blunt Rochester, and Elissa Slotkin begin service; Debbie Stabenow and Kyrsten Sinema end service |
| January 21, 2025 | 26 | Ashley Moody appointed |

### Timeline
## Concurrently serving women from the same state

On January 3, 2019, Arizona's Kyrsten Sinema and Martha McSally became the first women from the same state to start serving in the Senate on the same date.
| State | Start date | End date | Duration | Senior senator | Junior senator |
| California | January 3, 1993 | January 18, 2021 | 10,242 days (28 years, 15 days) | Dianne Feinstein (D) | Barbara Boxer (D) (January 3, 1993 – January 3, 2017), 8,766 days (24 years, 0 days) |
| California | January 3, 1993 | January 18, 2021 | 10,242 days (28 years, 15 days) | Dianne Feinstein (D) | Kamala Harris (D) (January 3, 2017 – January 18, 2021), 1,476 days (4 years, 15 days) |
| Kansas | June 11, 1996 | November 6, 1996 | 148 days | Nancy Kassebaum (R) | Sheila Frahm (R) |
| Maine | January 3, 1997 | January 3, 2013 | 5,844 days (16 years, 0 days) | Olympia Snowe (R) | Susan Collins (R) |
| Washington | January 3, 2001 | Present | 8,840 days (24 years, 74 days) | Patty Murray (D) | Maria Cantwell (D) |
| New Hampshire | January 3, 2011 | Present | 5,188 days (14 years, 74 days) | Jeanne Shaheen (D) | Kelly Ayotte (R) (January 3, 2011 – January 3, 2017), 2,192 days (6 years, 0 days) |
| New Hampshire | January 3, 2011 | Present | 5,188 days (14 years, 74 days) | Jeanne Shaheen (D) | Maggie Hassan (D) (January 3, 2017–present), 2,996 days (8 years, 74 days) |
| Minnesota | January 3, 2018 | Present | 2,631 days (7 years, 74 days) | Amy Klobuchar (DFL) | Tina Smith (DFL) |
| Nevada | January 3, 2019 | Present | 2,266 days (6 years, 74 days) | Catherine Cortez Masto (D) | Jacky Rosen (D) |
| Arizona | January 3, 2019 | December 2, 2020 | 699 days (1 year, 334 days) | Kyrsten Sinema (D) | Martha McSally (R) |

## Elections with two female major-party nominees

Incumbent senators (at the time of the election in question) are in bold.
Elections with two female major-party nominees :
| Election year | State | Winner | Second-place finisher | Other major female candidates |
| 1960 | Maine | Margaret Chase Smith | Lucia Cormier | |
| 1986 | Maryland | Barbara Mikulski | Linda Chavez | |
| 1998 | Washington | Patty Murray | Linda Smith | |
| 2002 | Louisiana | Mary Landrieu | Suzanne Haik Terrell | |
| 2002 | Maine (2) | Susan Collins | Chellie Pingree | |
| 2006 | Maine (3) | Olympia Snowe | Jean Hay Bright | |
| 2006 | Texas | Kay Bailey Hutchison | Barbara Ann Radnofsky | |
| 2008 | North Carolina | Kay Hagan | Elizabeth Dole | |
| 2010 | California | Barbara Boxer | Carly Fiorina | |
| 2012 | California (2) | Dianne Feinstein | Elizabeth Emken | |
| 2012 | Hawaii | Mazie Hirono | Linda Lingle | |
| 2012 | New York | Kirsten Gillibrand | Wendy Long | |
| 2014 | Maine (4) | Susan Collins | Shenna Bellows | |
| 2014 | West Virginia | Shelley Moore Capito | Natalie Tennant | |
| 2016 | California (3) | Kamala Harris | Loretta Sanchez | |
| 2016 | New Hampshire | Maggie Hassan | Kelly Ayotte | |
| 2018 | Arizona | Kyrsten Sinema | Martha McSally | |
| 2018 | Minnesota | Tina Smith | Karin Housley | |
| 2018 | Nebraska | Deb Fischer | Jane Raybould | |
| 2018 | New York (2) | Kirsten Gillibrand | Chele Farley | |
| 2018 | Washington (2) | Maria Cantwell | Susan Hutchison | |
| 2018 | Wisconsin | Tammy Baldwin | Leah Vukmir | |
| 2020 | Iowa | Joni Ernst | Theresa Greenfield | |
| 2020 | Maine (5) | Susan Collins | Sara Gideon | |
| 2020 | West Virginia (2) | Shelley Moore Capito | Paula Jean Swearengin | |
| 2020 | Wyoming | Cynthia Lummis | Merav Ben-David | |
| 2022 | Alaska | Lisa Murkowski | Kelly Tshibaka | Pat Chesbro |
| 2022 | Illinois | Tammy Duckworth | Kathy Salvi | |
| 2022 | Washington (3) | Patty Murray | Tiffany Smiley | |
| 2024 | Tennessee | Marsha Blackburn | Gloria Johnson | |

## Pregnancies

On April 9, 2018, Tammy Duckworth, at age 50, gave birth to her daughter Maile Pearl, becoming the first sitting senator to give birth. Shortly thereafter, the Senate's rules were changed to allow senators to bring with them to the Senate floor children under one year of age during votes, as well as explicitly allow breastfeeding. The day after those rules were changed, Maile became the first baby on the Senate floor when Duckworth brought her.