| 1924 (took office Jan 1925) | Mildred Barber, Hellen M. Brooks, Helen F. Thompson | First women elected to the Assembly | Elected in 1924, served in the 57th Legislature. Members were titled “assemblymen” until 1969. |
| 1957 | Dena Smith | First woman to serve as State Treasurer | Appointed after her husband’s death. Elected in 1960, becoming the first woman elected to a statewide constitutional office. |
| 1973 | Virginia Hart | First woman appointed to a Governor’s Cabinet Post | Appointed as Secretary of the Department of Regulations and Licensing. |
| 1973 | Barbara Thompson | First woman elected as State Superintendent of Education | |
| 1974 (took office Jan 1975) | Kathryn Morrison | First woman elected to the State Senate | Elected from the 17th Senate District, nearly 50 years after the first women entered the Assembly. |
| 1976 | Shirley Abrahamson | First woman to serve as Supreme Court Justice | Appointed to the Wisconsin Supreme Court by Gov. Patrick Lucey; elected in 1979. |
| 1976 (took office Jan 1977) | Marcia P. Coggs | First African-American woman in the Legislature (Assembly) | Elected from Milwaukee; served until 1993. |
| 1979 | Vel Phillips | First woman elected Secretary of State and first African-American woman in the nation elected to a statewide office | Earlier: first woman and first African-American on Milwaukee’s Common Council (1956) and first Black woman judge in Wisconsin (1971). |
1985
| Susan Engeleiter | First woman Senate Minority Leader | Marked the first time a woman led a party caucus in the Senate. |
1987
| Betty Jo Nelsen | First woman Assembly Minority Leader | First woman to lead a party caucus in the Assembly. |
1991
| Barbara Notestein | First woman Assistant Majority Leader in the Assembly | Served as Assistant Majority Leader during the 90th and 91st Legislatures (1991–94). |
| 1992 (took office Jan 1993) | Tammy Baldwin | First openly lesbian woman elected to the State Assembly | Elected from the 78th District; among the first openly LGBT state legislators in the U.S. |
1996
| Shirley Abrahamson | First woman to serve as Chief Justice of the Supreme Court | After two decades on the Court, became Chief Justice by seniority (then the selection method). |
| 2001 | Margaret Farrow | First woman to serve as Lieutenant Governor | |
| 2002 | Barbara Lawton | First woman elected as Lieutenant Governor | |
| 2002 | Peg Lautenschlager | First woman elected as Attorney General | |
2003
| Mary Panzer | First woman Senate Majority Leader | After serving as Minority Leader, became Majority Leader in the 2003 session. |
| 2010 (took office Jan 2011) | JoCasta Zamarripa | First Latina woman elected to the Legislature (Assembly) | Elected from Milwaukee. |
2014
| Pat Strachota | First woman Assembly Majority Leader | |
| 2015 | Mary Lazich | First woman Senate President (presiding officer of a chamber) | First woman to preside over either chamber of the Wisconsin Legislature. |
| 2020 (took office Jan 2021) | Francesca Hong | First Asian American (and first Asian-American woman) in the Legislature (Assembly) | Elected from Madison’s 76th District; widely noted as Wisconsin’s first Asian American state legislator. |