The National Conference of State Legislatures estimates that only 5% of state legislators are under the age of 30.[1]
| Name | State | Political Party | Date of Birth | Age Upon Taking Office | Tenure | Notes | | Avery|Bourne}} | Illinois | Republican | 1992|Nov|30}} | 1992|11|30|2015|2|15}} | 2015|Feb|15}} - Present | Originally appointed to Illinois House of Representatives; elected 2016 |
| Will|Haskell}} | Connecticut | Democratic | 1996|Jun|28}} | 22 years, 190 days | 2019|Jan}} - Present | Defeated incumbent Republican who had served since before he was born |
| Emily|Cain}} | Maine | Democratic | 1980|Mar|29}} | 1980|03|29|2005|1|1}} | 2005|Jan|1}} - December 5, 2012 | Maine House of Representatives Minority Leader 2008-2010; in 2012 elected to State Senate, served until 2014; currently the executive director of EMILY's List |
| Tricia|Cotham}} | North Carolina | Democratic | 1978|Nov|26}} | 1978|11|26|2007|3|22}} | 2007|Mar|22}} - January 11, 2017 | Originally appointed to North Carolina House of Representatives; elected 2008, 2010, 2012 and 2014; her mother Pat Cotham serves on the Mecklenburg County Board of Commissioners. |
| John|King|John McCandish King}} | Illinois | Republican | 1927|Feb|15}}[1] | 1927|2|15|1951|1|15}}[2] | 1951|Jan|15}} - Jan 15, 1957 | Youngest person elected to Illinois House of Representatives in its history at the time of his election. |
| Aaron|Schock}} | Illinois | Republican | 1981|5|28}} | 1981|5|28|2005|1|12}} | 2005|Jan|12}} - Jan 3, 2009 | Later Baby of the House during the 111th Congress and 112th Congress |
| Claire|McCaskill}} | Missouri | Democratic | 1953|Jul|24}} | 1953|07|24|1983|1|5}} | 1983|Jan|5}} - February 2, 1988 | Later elected Missouri State Auditor in 1998 and 2002; ran unsuccessfully for Governor of Missouri in 2004; elected Senator from Missouri in 2006 and 2012. |
| Josh|Svaty|Joshua Svaty}} | Kansas | Democratic | 1979|Nov|7}} | 1979|11|7|2003|1|8}} | 2003|Jan|8}} - July 14, 2009 | Kansas House of Representatives |
| Romaine|Quinn}} | Wisconsin | Republican | 1990|July|30}} | 1990|7|30|2015|1|3}} | 2015|Jan|3}} - Present | Elected Mayor of Rice Lake, Wisconsin at 19. |
| Greta|Neubauer}} | Wisconsin | Democratic | 1991}} | 26 | 2018|Jan|27}} - Present | Daughter of former State Representative Jeffrey A. Neubauer |
| Kaniela|Ing}} | Hawaii | Democratic | 1988|Dec|24}} | 1988|12|24|2012|11|7}} | 2012|Nov|7}} - Present | |
| Saira|Blair}} | West Virginia | Republican | 1996|July|11}} | 1996|7|11|2015|1|3}} | 2015|Jan|3}} - December 1, 2018 | Her father, Craig Blair, is a member of the West Virginia Senate. He previously represented the same House of Delegates district in which his daughter was elected. |
| Amber|Mariano|Amber Mariano (Florida politician)}} | Florida | Republican | 1995|Nov|1}} | 1995|11|1|2016|12|3}}[3] | 2016|Dec|3}} - Present | Her father is a county commissioner in Pasco County, Florida. |
| Kyrsten|Sinema}} | Arizona | Democratic | 1976|Jul|12}} | 1976|07|12|2005|1|10}} | 2005|Jan|10}} - January 3, 2012 | Elected to Arizona State House in 2004, in 2010 elected to Arizona State Senate. In 2012, 2014 and 2016 elected to House of Representatives in Arizona 9th District. Elected Senator from Arizona in 2018. |
| Moira|Walsh}} | Rhode Island | Democratic | 1990|Aug|23}} | 1990|8|23|2017|1|3}} | 2017|Jan|3}} - Present | |
| Jewell|Jones}} | Michigan | Democratic | 1995}} | 21[4] | 2017|Jan|1}} - Present | Youngest legislator in Michigan history |
| Lauren|Plawecki}} | Michigan | Democratic | 1994}} | 1994|1|29|2016|11|29}} | 2016|Nov|29}} - Jan 1, 2017 | Elected in special election to succeed her mother Julie in the Michigan House of Representatives. She was succeeded by the winner of the general election Jewell Jones. |
| Jacob|Bachmeier}} | Montana | Democratic | 1998|Jan|29}} | 1998|1|29|2017|1|2}}[5] | 2017|Jan|2}} - Present | Upon being sworn into the Montana House of Representatives, he became youngest state legislator in the United States at the time. |
| Jeramey|Anderson}} | Mississippi | Democratic | 1991|Dec|6}} | 1991|12|6|2013|11|26}} | 2013|Nov|26}} - Present | Upon being sworn into the Mississippi House of Representatives, he became youngest African-American state legislator in the United States at the time. |
| Sarah|Laszloffy}} | Montana | Republican | 1991|12|6}-> | [5] 1991|12|6|2013|11|26}-> | 2013|Nov|26}} - Jan 29, 2017 | She served as Majority Whip in the Montana House of Representatives from 2015-2017 |
| Mike|Cooney}} | Montana | Democratic | 1954|Sept|3}} | 1954|Sept|3|1977|1|3}}[5] | 1977|Jan|3}} - Jan 3, 1981 | Later Secretary of State (1989-2001) and Lieutenant Governor (2016-present) |
| Bob|Brown|Bob Brown (Montana politician)}} | Montana | Republican | 1947|Sept|11}} | 1947|9|11|1970|1|3}}[5] | 1970|Jan|3}} - Jan 3, 1974 | Later Secretary of State (2001-2005) |
| Jesse|Laslovich}} | Montana | Democratic | 1947|9|11}-> | [5] 1947|9|11|1970|1|3}-> | 2001|Jan|3}} - Feb 10, 2010 | |
| Jack|Uhde}} | Montana | Democratic | 1954|9|3}-> | 18[5] | 1977-1-3}} - ?? | Youngest member in history of the Montana House of Representatives |
| Greg|Jergeson}} | Montana | Democratic | 1950|Dec|29}} | 1950|12|29|1975|1|3}}[5] | 1975|Jan|3}} - Jan 3, 1980 | Later served two additional tenures in the Montana Senate; 1987–2003 and 2013-2015 |
| Caleb|Dyer|Caleb Q. Dyer}} | New Hampshire | Libertarian | 1996|05|05}} | 1996|05|05|2016|12|7}} | 2016|Dec|7}} - Present | The only Libertarian floor leader in the United States. Elected as a Republican. |
| Joseph|Stallcop}} | New Hampshire | Libertarian | 1996|05|07}} | 1996|05|07|2016|12|7}} | 2016|Dec|7}} - Present | Elected as a Democrat. |
| Brandon|Phinney}} | New Hampshire | Libertarian | 1988|04|27}} | 1988|04|27|2016|12|7}} | 2016|Dec|7}} - Present | Elected as a Republican. |
| Ryan|Fecteau}} | Maine | Democratic | 1992|Sept|18}} | 1992|09|18|2014|12|3}} | 2014|Dec|3}} - Present | Fecteau is the youngest openly gay state representative in the United States. |
| Drew|Christensen}} | Minnesota | Republican | 1993|5|21}} | 1993|5|21|2015|1|6}} | 2015|Jan|6}} - Present | |
| Jennifer|Sullivan|Jennifer Sullivan (politician)}} | Florida | Republican | 1991|Aug|1}} | 1991|8|01|2014|11|6}} | 2014|Nov|6}} - Present | |
| Tom|Demmer}} | Illinois | Republican | 1986}} | 1986|1|1|2013|1|6}} | 2013|Jan|6}} - Present | Deputy Republican Leader (2018-present) |
| Joe|Sweeney|Joseph Sweeney (American politician)}} | New Hampshire}} | Republican | 1993|Nov|8}} | 1993|11|8|2012|12|5}} | 2012|Dec|5}} - Present | |
| Kevin|Furey}} | Montana | Democratic | 1983|Jan|24}} | 1983|1|24|2005|1|5}} | 2005|Jan|5}} - May 9, 2007[6] | |
| Kylie|Oversen}} | North Dakota | Democratic | 1989|Feb|3}} | 1989|2|3|2013|1|8}} | 2013|Jan|8}} - Dec 5, 2016 | Elected Chair of the North Dakota Democratic-NPL at 26, making her the youngest U.S. state party chair at the time.[7] |
| {{sortname|Aundre|Bumgardner}}}} | Connecticut | Republican | 1989|Feb|3}-> | [8] 1989|2|3|2013|1|8}-> | 2015|Jan|8}} - Jan 5, 2017 | |
| John|Rowland|John G. Rowland}} | Connecticut | Republican | 1957|5|24}} | 1957|5|24|1981|1|8}} | 1981|Jan|8}} - Jan 3, 1985 | Later Governor of Connecticut |
| Adam|Putnam}} | Florida | Republican | 1974|7|31}} | 1974|7|31|1996|11|5}} | 1996|Nov|5}} - Nov 7, 2000 | Later Baby of the House during the 107th Congress and 108th Congress. |
| Patrick J.|Kennedy}} | Rhode Island | Democratic | 1967|7|14}} | 1967|07|14|1989|1|1}} | 1988|Jan|1}} - Jan 3, 1993 | Later Baby of the House during the 104th Congress. |
| Cleo|Fields}} | Louisiana | Democratic | 1962|Nov|22}} | 1962|11|22|1988|1|1}} | 1988|Jan|1}} - Jan 1, 1993 | Later Baby of the House during the 103rd Congress |
| Marilinda|Garcia}} | New Hampshire | Republican | 1983}} | 1983|1|1|2006|12|6}} | 2006|Dec|6}} - Dec 3, 2008 | Later served in the New Hampshire House of Representatives from April 29, 2009 to December 2, 2014. |
| Christina|Hagan}} | Ohio | Republican | 1988|Dec|11}} | 1988|12|11|2011|3|2}} | 2011|Mar|2}} - Present | Her father, John Hagan, previously represented the district[9] |
| Caleb|Hanna}} | West Virginia | Republican | 1999}} | 19 years | 2018|Dec|1}} - Present | The youngest African-American in America to be elected to a state legislature[10] |
| Sherrod|Brown}} | Ohio | Democratic | 1952|Nov|9}} | 1952|11|9|1975|1|3}} | 1975|Jan|3}} - Dec 31, 1982 | Later Ohio Secretary of State (1983-1991) and United States Senator from Ohio (2007-present) |
| Bianca|Garcia}} | New Hampshire | Republican | 1986|6|1}} | 1986|6|1|2012|12|5}} | {{dts|2012|Dec|5}} - Dec 3, 2014}} | Sister of Marilinda Garcia |
| Jay|Jones|Jay Jones (politician)}} | Virginia | Democratic | 1986|6|1}} | 1989|03|14|2018|1|10}} | 2018|Jan|10}} - Present | |
| Cedric|Richmond}} | Louisiana | Democratic | 1973|Sept|13}} | 1973|9|13|2000|1|10}} | 2000|Jan|10}} - Jan 3, 2011 | Later Congressman from Louisiana's 2nd district (2011-present) |
| Abby|Finkenauer}} | Iowa | Democratic | 1988|Dec|27}} | 1988|12|27|2015|1|12}} | 2015|Jan|12}} - Jan 3, 2019 | Elected Congresswoman from Iowa's 1st district in 2018. |
| Bakari|Sellers}} | South Carolina | Democratic | 1984|Sept|18}} | 1984|9|18|2007|1|9}} | 2007|Jan|9}} - Jan 6, 2015 | |
| Brian|Schatz}} | Hawaii | Democratic | 1972|Oct|20}} | 1972|10|20|1998|11|3}} | 1998|Nov|3}} - Nov 7, 2006 | United States Senator from Hawaii (2012-present) |
| Chris|Murphy}} | Hawaii | Democratic | 1973|8|3}} | 1973|8|3|1999|1|3}} | 1999|Jan|3}} - Jan 3, 2007 | United States Senator from Connecticut (2013-present) |
| Ian|Conyers}} | Michigan | Democratic | 1988|Oct|28}} | 1988|10|28|2016|11|23}} | 2016|Nov|23}} - Present | Grandnephew of former Congressman John Conyers |
| Calvin|Say}} | Hawaii | Democratic | 1952|Feb|01}} | 1952|02|01|1977|1|3}} | 1977|Jan|3}} - Present | Later Speaker of the Hawaii House of Representatives |
| Lauren|Matsumoto}} | Hawaii | Republican | 1987|Aug|16}} | 1987|8|16|2013|1|16}} | 2013|Jan|16}} - Present | |
| Chris|Lee|Chris Lee (Hawaii politician)}} | Hawaii | Democratic | 1981|Jan|28}} | 1981|01|28|2009|1|10}} | 2009|Jan|10}} - Present | |
| Jessica|Haak}} | North Dakota | Democratic | 26|2012|12|26|noage=1}}[11] | 26 | 2013|Jan|3}} - Jan 3, 2017 | |
| Corey|Mock}} | North Dakota | Democratic | 1985|Feb|17}} | 1985|2|17|2008|12|1}} | 2008|Dec|1}} - Present | Minority Leader of the North Dakota House of Representatives since 2014. |
1. ^{{cite news|first1=John M.|last1=King IV|first2=Carylyn K.|last2=Dooley|first3=Mark M.|last3=King|first4=Sally K.|last4=Rogers|title=John King 1927-2016|date=January 20, 2016|newspaper=Denver Post|location=Denver Colorado|publisher=Legacy.com|accessdate=August 24, 2017|url=http://www.legacy.com/obituaries/denverpost/obituary.aspx?pid=177361349}}
2. ^{{cite news|last=Howard|first=Robert|title=Mrs. O'Neill Favored for State Senate: Fights Hard to Take Barr's Seat|date=October 15, 1950|newspaper=Chicago Tribune|location=Chicago, Illinois|via=ProQuest|subscription=yes}}
3. ^https://www.cosmopolitan.com/politics/a12252792/amber-mariano-florida-state-representative/
4. ^https://www.nbcnews.com/news/nbcblk/jewell-jones-youngest-black-state-lawmaker-america-n741101
5. ^1 2 3 4 5 6 {{cite web|url=http://billingsgazette.com/news/government-and-politics/new-montana-lawmaker-will-be-the-youngest-serving-state-legislator/article_7e451582-1b84-538d-bcb1-4f44819bae9b.html|title=New Montana lawmaker will be the youngest serving state legislator in America|author=Fraser, Jayme|newspaper=Billings Gazette|date=December 5, 2016|accessdate=August 10, 2017}}
6. ^https://missoulian.com/news/local/democrats-give-elder-furey-nod/article_71860c06-d594-5e00-ade9-b99b6df77ad6.html
7. ^{{cite web|url=http://www.refinery29.com/2015/03/84348/kylie-oversen-north-dakota-youngest-democratic-party-chair|author=Reininga, Ben|title=She Runs The Democratic Party In A Super-Red State (& She's 26)|publisher=Refinery29|date=2015-03-24|accessdate=2015-10-23}}
8. ^1 http://www.courant.com/politics/hc-aundre-bumgardner-young-lawmaker-20141117-story.html
9. ^{{cite web|url=http://www.cantonrep.com/news/x2022438058/Christina-Hagan-says-shell-replace-Snitchler-in-50th|title=Christina Hagan to replace Snitchler in 50th|author=Robert Wang|date=March 1, 2011|accessdate=11 October 2011|archiveurl=https://web.archive.org/web/20110305000030/http://www.cantonrep.com/news/x2022438058/Christina-Hagan-says-shell-replace-Snitchler-in-50th|archivedate=March 5, 2011|dead-url=yes}}
10. ^{{cite web |last1=Matthis Johnson |first1=Susan |title=Youngest black legislator in America ready to get to work for WV |url=https://www.wvgazettemail.com/life/youngest-black-legislator-in-america-ready-to-get-to-work/article_9f22e066-ab68-5f18-90be-a79fe0868dfc.html |website=Charleston Gazette-Mail |language=en |date=January 6, 2019}}
11. ^https://archive.is/20131222040544/https://www.ndfu.org/story/212/haak-elected-to-house