Same-sex marriage has been legally recognized in Iowa since a decision of the Iowa Supreme Court on April 3, 2009. Marriage licenses became available to same-sex couples on April 27.
In 2005, six same-sex couples who were denied marriage licenses in Iowa filed a lawsuit in Polk County. In 2007, the Polk County District Court ruled in favor of the couples in Varnum v. Brien. On April 3, 2009, a unanimous Iowa Supreme Court upheld the lower court's ruling, making Iowa the fourth U.S. state to legalize same-sex marriage, after Massachusetts, California, and Connecticut.
In 1998, following court decisions on same-sex unions in other states that suggested that denying the right to marry to same-sex couples was incompatible with the equal protection clause of a state constitution like Iowa's, Iowa legislators who hoped to avoid a similar court challenge tried without success to pass a statute to prohibit marriage on the part of gay and lesbian couples.
Six same-sex couples represented by Lambda Legal sought the right to marry their same-sex partners in Iowa. They brought suit in 2005 arguing that denying them marriage licenses violated the liberty and equal protection clauses in the state constitution. Judge Robert Hanson of Polk County District Court ruled in favor of the plaintiffs on August 30, 2007. The next morning, Hanson stayed his decision pending an appeal to the Iowa Supreme Court.
Within two hours after the District Court published its ruling, two men from Des Moines submitted an application for marriage to the county recorder and their application was accepted. The next morning, several other couples applied for marriage licenses before Hanson issued his stay. Iowa marriage law requires a three-day waiting period between the initial application for a marriage license and the time the marriage becomes official, unless this waiting period is waived by a judge. Sean Fritz and Tim McQuillan, residents of Ames and students at Iowa State University, were the only couple to receive such a waiver before Hanson issued his stay. After receiving the waiver and applying for a marriage license on the morning of August 31, the couple was married in a short ceremony that morning by a Unitarian Universalist minister on the minister's front lawn in Des Moines.