Civil union, anti-marriage constitutional amendment; two judges - one in state court, one in federal court - have ruled that the amendment is unconstitutional. The state court ruling is stayed pending appeal to the Colorado Supreme Court. The federal court ruling is stayed until August 25, in which time CO can seek further action from the 10th Circuit Court of Appeals. 


On July 9, District Court Judge C. Scott Crabtree struck down Colorado’s ban on marriage for same-sex couples in these two consolidated state court cases seeking the freedom to marry and respect for marriages legally performed in other states. The ruling has been stayed pending an appeal. The Colorado Supreme Court will likely consider the case sometime this year.

On July 23, in a separate case in federal court, U.S. District Court Judge Raymond P. Moore struck down Colorado’s ban on marriage for same-sex couples in Burns v. Hickenlooper, staying the ruling until August 25, during which time the state of Colorado can seek further action from the U.S. Court of Appeals for the 10th Circuit. Follow the Marriage Litigation in Colorado.

As these cases makes their way up through the courts, Coloradans across the state will continue to do the work of having conversations about why marriage matters and creating a climate for victory.

Marriage supporters from across the state have joined together to form Why Marriage Matters Colorado, a public education campaign designed to begin the conversation about the freedom to marry for all loving, committed couples in the state. Take the pledge with Why Marriage Matters Colorado HERE.

Since May 2013, same-sex couples in Colorado have been able to join together in civil union.


In 2006, anti-gay forces in Colorado pushed through an anti-marriage constitutional amendment that excluded same-sex couples from marriage. 

In 2009, Colorado approved the Designated Beneficiary Agreements Act of 2009, allowing same-sex couples to access some of the benefits that marriage affords.

In February 2011, the Colorado legislature considered the Colorado Civil Union Act of 2011, which passed out of the state Senate but failed in the House. In May 2012, the Colorado legislature was set to discuss the Colorado Civil Union Act of 2012, which would have granted same-sex couples some of the benefits of marriage. However, due to legislative inaction and a refusal to discuss the bill, the legislation failed. 

On March 21, 2013, Gov. John Hickenlooper signed a bill into law to allow same-sex couples to join together in civil union. The law takes effect on May 1. 


Colorado: Support for the freedom to marry has reached a record high in Colorado, with 56% in support and only 36% who are opposed. Voters under 45 favor marriage for same-sex couples by a 71/21 margin. (Public Policy Polling, March 2014)


  • Why Marriage Matters Colorado is the grassroots public education campaign to build support for the freedom to marry in Colorado.
  • One Colorado is a statewide advocacy organization dedicated to securing and protecting equality and opportunity for lesbian, gay, bisexual, and transgender (LGBT) Coloradans and their families.
  • The ACLU of Colorado is the state affiliate of the American Civil Liberties Union, committed to standing up for equality for all Coloradans.
  • Freedom to Marry is the campaign to win marriage for same-sex couples nationwide.


According to The Williams Institute's analysis of the 2010 U.S. Census, 12,424 same-sex couples are living in Colorado, representing 6.3 same-sex couples per 1,000 households.

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Federal judge in Colorado strikes down marriage ban in 27th pro-marriage ruling

Today, July 23, U.S. District Court Judge Raymond P. Moore struck down Colorado’s ban on marriage for same-sex couples, following a month-long flurry of activity on marriage in the Centennial State.

Colorado judge strikes down state’s marriage ban; 24th consecutive win in 1 year

Today, July 9, a state judge struck down Colorado’s ban on marriage for same-sex couples, marking the 24th consecutive ruling in favor of the freedom to marry (with no rulings against) since June 2013.

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