Margaret DeLaRosa
Margaret DeLaRosa (Democratic Party) is a member of the Illinois House of Representatives, representing District 42. She assumed office on October 12, 2025. Her current term ends on January 13, 2027.
DeLaRosa is also an at-large member of the Glenbard Township High School District 87 school board in Illinois. Her term ended in 2025.
DeLaRosa (Democratic Party) is running for re-election to the Illinois House of Representatives to represent District 42. She declared candidacy for the Democratic primary scheduled on March 17, 2026.[source]
The Illinois House Democrats appointed DeLaRosa to the Illinois House of Representatives District 42 on October 12, 2025, to replace Terra Costa Howard (D).
Biography
Margaret DeLaRosa earned a bachelor's degree in accounting from DePaul University. DeLaRosa's career experience includes working as a business analyst for a global consulting firm and serving as a school board member. DeLaRosa has served in the League of Women Voters.[1]
Elections
2026
See also: Illinois House of Representatives elections, 2026
General election
The primary will occur on March 17, 2026. The general election will occur on November 3, 2026. General election candidates will be added here following the primary.
Democratic primary
Democratic primary for Illinois House of Representatives District 42
Incumbent Margaret DeLaRosa (D) and Lynn LaPlante (D) are running in the Democratic primary for Illinois House of Representatives District 42 on March 17, 2026.
Candidate | ||
 | Margaret DeLaRosa | |
| Lynn LaPlante | ||
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Republican primary
Republican primary for Illinois House of Representatives District 42
Stephanie Trussell (R) is running in the Republican primary for Illinois House of Representatives District 42 on March 17, 2026.
Candidate | ||
 | Stephanie Trussell | |
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Endorsements
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Campaign themes
2026
Ballotpedia survey responses
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Campaign finance summary
Campaign finance information for this candidate is not yet available from OpenSecrets. That information will be published here once it is available.
See also
2026 Elections
External links
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Candidate Illinois House of Representatives District 42 |
Officeholder Illinois House of Representatives District 42 |
Footnotes
| Political offices | ||
|---|---|---|
| Preceded by Terra Costa Howard (D) |
Illinois House of Representatives District 42 2025-Present |
Succeeded by - |
| Preceded by - |
Glenbard Township High School District 87, At-large 2015 |
Succeeded by - |
| Preceded by - |
Glenbard Township High School District 87, At-large -Present |
Succeeded by - |
