Is It Illegal to Marry Your Cousin in Mississippi? Here's What the Law Says

Many people are surprised to learn that in some parts of the United States, marrying your cousin is actually allowed. But in other places, it’s considered illegal. If you’re wondering what the law says about cousin marriage in Mississippi, here’s a clear and simple explanation.

What Does the Law Say About Cousin Marriage in Mississippi?

In Mississippi, it is illegal to marry your first cousin. The law clearly bans marriages between close blood relatives, and first cousins fall under that category.

According to Mississippi Code Title 93, marriage between the following relations is not allowed:

Parent and child

Siblings (brother and sister)

Uncle and niece / Aunt and nephew

First cousins

So if you’re first cousins, you legally cannot marry in Mississippi—even if both of you are adults and fully agree to it.

What About Second Cousins or Distant Relatives?

While first cousins can’t marry, second cousins or more distant relatives are allowed to get married in Mississippi. The law focuses mainly on close blood relations to prevent genetic risks in children born from such unions.

So, if you’re not sure how close your relation is, it’s best to check your family tree carefully. If the connection is more distant than first cousins, you’re most likely safe under the law.

Why Is Cousin Marriage Illegal in Some States?

The main reason many states, including Mississippi, ban cousin marriage is due to health concerns. Children born to parents who are closely related by blood may have a higher risk of genetic disorders. That’s why such marriages are restricted in many places.

However, it’s important to know that not all states agree. Some US states allow first cousin marriage without any issue. Others may allow it with conditions—like genetic counselling or age restrictions.

Can You Marry Your Cousin in Another State If You Live in Mississippi?

Yes, you can. If you and your cousin want to get married, you could travel to a state where cousin marriage is legal, get married there, and then return to Mississippi. But here’s the catch: Mississippi may not recognise that marriage under its own laws.

So even if you are legally married in another state, you might not get all the legal rights and benefits of marriage in Mississippi. This includes things like property rights, inheritance, and more.

Are There Any Exceptions to the Rule?

No, Mississippi law is quite strict on this matter. There are no exceptions that allow first cousins to marry, even if they can’t have children or are older. The law applies to all first cousins equally, regardless of the situation.

What Should You Do If You’re in a Relationship With Your Cousin?

If you’re in a relationship with your cousin and are thinking about marriage, here are some steps you can consider:

Talk to a family lawyer in Mississippi who understands the marriage laws well.

Look at laws in other states if you’re considering moving or marrying elsewhere.

Understand the legal and social implications before making any decisions.

While marriage laws can seem confusing, knowing the rules in your state is very important. In Mississippi, first cousin marriage is clearly not allowed. If you’re thinking about such a relationship, it’s better to understand the law fully and explore other legal options before moving ahead.

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