GOTV Intel

Illinois House District 42

State House District 42

Covers part of DuPage County.

Who Holds This Seat

Margaret DeLaRosa

Democrat · State Representative

Holds This SeatOn the 2026 ballot

Running in 2026

IncumbentNov 3 General
Margaret DeLaRosa

Democrat · State Representative

Ballot
On the 2026 ballot
Last Change
Profile updated · Oct 4
Raised
Not on file
Cash on Hand
Not on file

No finance filing on record.

ChallengerNov 3 General
Stephanie W. Trussell

Republican

Ballot
On the 2026 ballot
Last Change
Profile updated · Oct 4
Raised
Not on file
Cash on Hand
Not on file

No finance filing on record.

The District

Includes Lombard (part), Glen Ellyn (part), Lisle (part), Downers Grove (part) and Wheaton (part).

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74 precincts · District lines: State house lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: Chicago Board of Election Commissioners, Boundaries - Ward Precincts (2023-2024) (data.cityofchicago.org 6piy-vbxa) for the City of Chicago; Cook County Clerk, Suburban Cook Election Precincts - Current (datacatalog.cookcountyil.gov k7sw-w3b8); DuPage County, Election_Precincts layer (gis.dupageco.org, current, retrieved 2026-09-24); U.S. Census Bureau 2020 VTDs elsewhere in Illinois; U.S. Census Bureau 2020 TIGER/Line VTDs where no official layer

Results in This District

ContestFirstSecondMarginVotes
2024 President95 precinctsIllinois State Board of ElectionsOfficial voteKamala D. Harris (D)33,777 · 57.6%Donald J. Trump (R)21,968 · 37.4%D+20.158,677
2022 U.S. Senate138 precinctsIllinois State Board of ElectionsOfficial voteTammy Duckworth (D)27,814 · 60.2%Kathy Salvi (R)17,592 · 38.0%D+22.146,236
2022 Governor138 precinctsIllinois State Board of ElectionsOfficial voteJb Pritzker (D)27,322 · 59.3%Darren Bailey (R)17,156 · 37.3%D+22.146,037
2020 President118 precinctsIllinois State Board of ElectionsOfficial voteJoseph R. Biden (D)38,014 · 60.5%Donald J. Trump (R)22,833 · 36.4%D+24.262,792
2020 U.S. Senate118 precinctsIllinois State Board of ElectionsOfficial voteRichard J. Durbin (D)35,679 · 57.2%Mark C. Curran Jr. (R)23,777 · 38.1%D+19.162,345

Totals add up the certified precinct results for the precincts inside today's district lines. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.

Past Results

State Representative, District 42

2024 General Election · Nov 5, 2024
CandidateVotesShare
Terra Costa HowardDemocrat40,91687.7%
Write-in5,53411.9%
Amar Patel1980.4%

Official vote — Illinois State Board of Elections (certified canvass, precinct vote totals by election authority) · Illinois State Board of Elections — Election Vote Totals by Precinct

State Representative, District 42

2022 General Election · Nov 8, 2022
CandidateVotesShare
Terra Costa Howard25,82258.3%
Stefanie Hood18,49441.7%

Official vote — Illinois State Board of Elections (certified canvass, precinct vote totals by election authority) · Illinois State Board of Elections — Election Vote Totals by Precinct

State Representative, District 42

2020 General Election · Nov 3, 2020
CandidateVotesShare
Amy L. GrantRepublican32,34951.9%
Ken Mejia-BealDemocrat30,00548.1%

Official vote — Illinois State Board of Elections (certified canvass, precinct vote totals by election authority) · Illinois State Board of Elections — Election Vote Totals by Precinct

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