Before revision: As of April 2016 , cohabitation of unmarried couples remains illegal in three states (Mississippi , Michigan, and North Carolina), while as of 2020 fornication remains illegal in two states ( Idaho and Mississippi).
After revision: As of December 2023 , cohabitation of unmarried couples remains illegal in two states (Mississippi , Michigan, and North Carolina), while as of 2023 fornication remains illegal in two states ( Georgia and Mississippi).