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Instant-Runoff Voting election system -- use and history of IRV

  • Tom Monto
  • 6 days ago
  • 1 min read


Here is table rescued from Wikipedia cutting-room floor (deleted as of June 4, 2025):




National level elections

Country

Body or office

Type of body or office

Total seats

Notes

Australia

Lower chamber of legislature

Instant-runoff voting

150


Ireland

Head of State

Instant-runoff voting



Lower chamber of legislature

Single transferable vote (STV), by-elections using Instant-runoff voting

174[64]


Papua New Guinea

Unicameral legislature

Instant-runoff voting

109


United States

Head of State and Government

Alaska and Maine use IRV to select the state's electoral college seat winner or winners. In Maine, 2 electors are allocated to the winner of the state vote plurality and the others (currently 2) are allocated by plurality in each congressional district. In Alaska, the winner receives all Electoral College electors of the state (as Alaska has only one at-large district, the effect is the same).

7 EVs[65] (out of 538)


Lower chamber of legislature

IRV in Maine

In Alaska -- Nonpartisan primary system with IRV in the second round (to choose from top four candidates)

3 (out of 435)


Upper chamber of legislature

4 (out of 100)


R

 
 
 

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History | Tom Monto Montopedia is a blog about the history, present, and future of Edmonton, Alberta. Run by Tom Monto, Edmonton historian. Fruits of my research, not complete enough to be included in a book, and other works.

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