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

The question of whether marrying one’s cousin is legal or not is a complex one, with answers varying depending on location and cultural context. In the United States, the legality of cousin marriage falls under the jurisdiction of individual states. This article will examine the specific laws regarding cousin marriage in the state of Connecticut.

Throughout history, cousin marriage has been a common practice across many cultures worldwide. While some societies have embraced and continue to practice cousin marriage, others have developed taboos or even laws against it. Historically, cousin marriage was often favored for reasons like consolidating family wealth, strengthening alliances, and preserving cultural traditions.

In the United States, the laws governing cousin marriage are determined at the state level. This results in significant variation, with some states completely banning first-cousin unions and others placing few or no restrictions.

Connecticut’s Laws on Cousin Marriage

Connecticut is one of the states that permits marriage between first cousins. There are no explicit laws within the state prohibiting such unions. However, it’s important to consult with legal counsel to ensure awareness of any other legal considerations that may apply to certain individuals.

Scientific and Genetic Considerations

One of the major concerns surrounding the practice of cousin marriage is the potential for an increased risk of genetic disorders in offspring. This is because close relatives are more likely to share recessive genes that can lead to birth defects or genetic diseases.

Studies suggest that the risk of birth defects in children born to first cousins is slightly higher than in children of unrelated parents. The risk increases from roughly 3% in the general population to approximately 5-6% for children of first cousins. It’s important to note that this level of risk remains relatively low.

Some studies contest the perception of significantly elevated risk in cousin marriages. Researchers emphasize that the majority of children born to first cousins are healthy.

Social and Cultural Perspectives

Attitudes towards cousin marriage in the United States are diverse and influenced by various factors. While some individuals may find the concept unusual or taboo, cousin marriage carries historical and cultural significance in certain communities.

In some cultures, cousin marriage might be seen as a way to maintain family ties and traditions. Additionally, certain religions may explicitly permit or even encourage cousin marriage.

Legal Arguments For and Against Cousin Marriage

Arguments in Favor:

  • Personal Liberty: Proponents argue that the government should not infringe upon an individual’s right to choose whom they marry.
  • Cultural Tradition: Supporters emphasize the importance of respecting cultural and religious practices that may include cousin marriage.
  • Minimal Risk: Some argue that the genetic risks associated with cousin marriage are overstated and should not be a basis for prohibiting such unions.

Arguments Against:

  • Potential Genetic Risks: Opponents express concern about the increased potential for birth defects and genetic diseases in the offspring of cousin marriages.
  • Social Concerns: Some argue that cousin marriage may perpetuate closed or insular social structures.
  • Protection of Children: There’s concern that power imbalances within family relationships could increase the risk of coercion or exploitation within cousin marriages.


Currently, Connecticut legally permits marriage between first cousins. While the practice evokes diverse opinions, it’s essential to approach the topic with a nuanced understanding that includes scientific, cultural, and legal considerations.

The future of cousin marriage laws in Connecticut is uncertain. As societal attitudes and scientific knowledge continue to evolve, it’s possible that the state’s stance on cousin marriage may shift. It will be interesting to see if increased awareness of potential genetic risks or changing social norms lead to a re-evaluation of the current laws.

Important Considerations

  • Genetic Counseling: If you are considering marrying your first cousin, it’s strongly recommended to seek genetic counseling. A qualified professional can assess your specific family history and provide information about the potential risks involved. This counseling can empower couples to make informed decisions about family planning.
  • Respectful Dialogue: Regardless of your personal stance on cousin marriage, it’s crucial to approach the subject with respect and sensitivity. Acknowledge the diverse perspectives that exist and engage in open and constructive dialogue with those who may hold different viewpoints.


  • Connecticut General Statutes: The official legal code of laws of Connecticut can be found online. Consult it for the precise legal language on marriage regulations in the state. (
  • National Society of Genetic Counselors: The NSGC website provides information on genetic counseling and helps locate qualified professionals. (
  • Studies on Genetic Risks of Cousin Marriage: Search reputable medical journals and research databases for relevant studies. Examples include PubMed and the Journal of Genetic Counseling (,
  • Organizations Exploring Cultural Aspects of Cousin Marriage: Universities or research institutes focusing on family anthropology, sociology, or cultural studies may provide valuable insights and resources.

Disclaimer: This article is intended for informational purposes only and should not be interpreted as legal or medical advice. Please consult qualified professionals in the legal and healthcare fields for personalized guidance relevant to your specific circumstances.

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MBS Staff
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