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Maine › Maine State Senate · November 3, 2026 · Updated Oct 16, 2026

Maine State Senate District 21

Shanna Cox has no major-party opponent.

Shanna Cox has no major-party opponent.

The candidates

The district

Lean D+10: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+6.0D+3.8 vs. nation2020 presidentD+14.6D+10.0 vs. nation2024 presidentD+8.4D+9.9 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
38,324
People per km²
416
Adults with a B.A.+
23%
White, no degree
67%of adults
  • White 77%
  • Hispanic 3%
  • Black 14%
  • Asian 2%
  • Other / multiracial 4%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024

12,473 votes · Uncontested by the other party
✓ Margaret R Rotundo (D)100.0%

2024 President Vote in this district

16,221 two-party votes · D+8.4 · D+9.9 vs. the nation
✓ Kamala Harris (D)54.2%
Donald Trump (R)45.8%

2022

13,196 votes · D+17.0
✓ Margaret R Rotundo (D)58.5%
Ricky R Lachapelle (R)41.5%

2020 Earlier district lines

17,053 votes · D+19.3
✓ Nathan L Libby (D)59.6%
Timothy Joseph Gallant (R)40.4%

2020 President Vote in this district

16,969 two-party votes · D+14.6 · D+10.0 vs. the nation
✓ Joe Biden (D)57.3%
Donald Trump (R)42.7%

2016 President Vote in this district

15,643 two-party votes · D+6.0 · D+3.8 vs. the nation
✓ Hillary Clinton (D)53.0%
Donald Trump (R)47.0%

Also on the ballot in Maine

  • RCV ME Ranked-choice voting: if nobody wins a majority of first choices, last-place candidates are eliminated and their votes move to the next choice.

Neighboring districts