Krzysztof Grzywna
Krzysztof Grzywna voted up Rooster Cogburn's answer

    Twenty-five states prohibit marriages between first cousins. Six states allow first cousin marriage under certain circumstances, and North Carolina allows first cousin marriage but prohibits double-cousin marriage. States generally recognize marriages of first cousins married in a state where such marriages are legal.

    State Laws Regarding Marriages Between First Cousins