In the United States

State and local governments in the United States using IRV

  • Arkansas (adopted by the legislature 2005 and expanded by legislature in 2007; first used in 2006; only for overseas voters in runoffs)
  • Basalt, Colorado (adopted as charter amendment by voters in 2002, to be used in next mayoral election with more than two candidates)
  • Berkeley, California (adopted as charter amendment by voters in 2004; first used in 2010; for mayor, city council and other city offices)
  • Hendersonville, North Carolina (used in 2007 2009  and 2011 after council adopted statute to participate in pilot; for mayor and multi-seat variation for city council)
  • Louisiana (adopted by legislature and first used 1990s; only for overseas and military voters in federal and state runoffs)
  • Minneapolis, Minnesota (adopted as charter amendment by voters in  2006; first used in 2009 for mayor and city council)
  • North Carolina (for judicial vacancy elections only; adopted by legislature 2006; first used in 2010 for statewide election and three county-level elections)
  • Oakland, California (adopted as charter amendment by voters in 2006 ballot measure, first used in 2010; for mayor, city council and other city offices)
  • Portland, Maine (adopted as charter amendment by voters in 2010; first used in 2011 for electing mayor)
  • San Francisco, California (adopted as charter amendment by voters in 2002, first used in 2004; for mayor, Board of Supervisors and other city offices)
  • San Leandro, California (adopted as charter amendment as option by voters in 2000; first used in 2010; for mayor and city council)
  • South Carolina (adopted by legislature and first used in 2006; only for overseas voters in federal and state runoffs)
  • Springfield, Illinois (adopted by voters in 2007; first used in 2011 for overseas voters)
  • St. Paul, Minnesota (adopted as charter amendment by voters in 2009, first used in November 2011; for mayor  and city council)
  • Takoma Park, Maryland (adopted as charter amendment by city council in 2006 after voters approved 2005 advisory referendum, first used in 2007; for mayor and city council)
  • Telluride, Colorado (adopted as statute by voters in 2008; first used for mayoral elections in 2011 

Expected implementations (as of May 2012) 

  • Memphis, Tennessee (adopted 2008; scheduled for 2013 for electing city council and other offices)

Optional or Contingent Adoptions in the United States

  • Ferndale, Michigan (adopted for mayor and city council with contingencies, 2004)
  • Santa Clara County, California (adopted by voters as option in charter in 1998)
  • Santa Fe, New Mexico (adopted for mayor and city council with contingencies, 2008)
  • Sarasota, Florida (adopted for mayor and city council with contingencies, 2007)
  • Vancouver, Washington (adopted for city elections with contingencies, 1999)

*Ann Arbor (MI), Aspen (CO), Burlington (VT), Cary (NC), New York (NY), Pierce County (WA) and Yonkers (NY) have used IRV in the past elections in the United States

**Cambridge (MA) uses a ranked choice voting system for its city council elections, but not IRV. It is the choice voting method of proportional voting where each of the nine winners needs a little more than 10% of the vote. Davis (CA) passed an advisory measure in 2006 in favor of this system.