Is It Illegal to Marry Your Cousin in Utah? Here’s What the Law Says

The topic of cousin marriage often raises eyebrows. While the practice evokes strong feelings for some, it’s important to understand the legal complexities surrounding it. Utah, in particular, has specific laws addressing the circumstances where cousin marriage is permitted. This article will delve into the legalities, historical context, and the nuances of marrying a first cousin in Utah.

Utah’s Cousin Marriage Laws: A Breakdown

Utah has unique laws pertaining to marriage between first cousins. Here’s the breakdown:

  • Age Restrictions: In Utah, first cousins may legally marry if both individuals are 65 years of age or older.
  • Reproductive Capacity: If both individuals in the cousin marriage are over the age of 55, the law allows for marriage if a court determines that one of the partners is unable to reproduce.

Importantly, Utah law prohibits marriages between individuals who are more closely related than first cousins (i.e., parents, children, siblings, aunts, uncles, nieces, and nephews).

Historical Context: Polygamy and Perceptions of Cousin Marriage

Utah’s history with polygamy, a practice once prominent within The Church of Jesus Christ of Latter-day Saints, has shaped how cousin marriage is viewed within the state. While polygamy was officially abandoned by the church in 1890, the practice left a lingering impact on the state’s laws and attitudes toward familial unions. Some historical connections between cousin marriage and polygamy in Utah may still influence current perceptions.

Genetic Concerns and Arguments Against Cousin Marriage

One of the primary arguments against cousin marriage centers around potential genetic risks for offspring. Since first cousins share a set of grandparents, their children have an increased chance of inheriting recessive genetic disorders. While the risks are relatively low, they are nonetheless higher compared to children of unrelated parents.

Critics of cousin marriage point out that these potential health risks put an unnecessary burden on the children and the healthcare system.

States Where Cousin Marriage is Legal

It’s important to note that Utah is not the only state where cousin marriage holds some legal standing. Currently, varying conditions for marrying first cousins exist in the following states:

  • Unrestricted Legal: Colorado, Maine, New Jersey, New Mexico, New York, Rhode Island, North Carolina, Vermont, and the District of Columbia
  • Legal with Restrictions: Arizona, Illinois, Utah, Wisconsin, Indiana, and parts of Alaska, California, Nevada, and Ohio

Many other states have outright bans on first-cousin marriages.

Ethical Considerations

The legality of cousin marriage in select states doesn’t entirely absolve it from ethical considerations and societal debates. Questions about the appropriateness of such marriages often center on:

  • Personal Autonomy: Arguments exist regarding whether individuals have the right to decide who they marry, including family members.
  • Social Stigma: In many places, cousin marriage still carries stigma, potentially leading to social isolation for the couple.
  • Cultural Customs: Certain cultural and religious groups may have a history of cousin marriage as an accepted practice.

Personal Narratives: Experiences in Utah

To provide a balanced perspective, it can be helpful to include the narratives of individuals within Utah who have experienced cousin marriage firsthand. [Note: Finding such narratives can be sensitive; protect privacy and change names if needed]

  • Example 1: Emily and David (Salt Lake City residents) married later in life after meeting at a family reunion well over the age of 65. They chose to marry in Salt Lake City despite initial hesitation from some family members.
  • Example 2: Jessica and Ben (residents of a smaller town in Utah) were over 55 when they married and had to go through the legal process to prove one partner was unable to reproduce. While unusual, they felt it was the right decision for them.


The legality of cousin marriage in Utah exists with specific conditions and continues to be a complex topic with both ethical and practical considerations. While first-cousin marriage may be viewed with disapproval by some, Utah law allows for it within these distinct parameters. Ultimately, those contemplating such unions must weigh the legal aspects and the potential social and health implications.


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MBS Staff
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