This ranking scheme illustrates the manner in which the barriers against desegregation fell: Of less importance was the segregation in basic public facilities, which was abolished with the Civil Rights Act of 1964.
The most tenacious form of legal segregation, the banning of interracial marriage, was not fully lifted until the last anti-miscegenation laws were struck down in 1967 by the Supreme Court ruling in the landmark Loving v. Social enterprise research conducted on behalf of the Columbia Business School (2005–2007) showed that regional differences within the United States in how interracial relationships are perceived have persisted: Daters of both sexes from south of the Mason–Dixon line were found to have much stronger same-race preferences than northern daters did.
Using the 2002 National Survey of Family Growth (Cycle VI), the likelihood of divorce for interracial couples to that of same-race couples was compared.
Virginia that deemed "anti-miscegenation" laws unconstitutional. The proportion of interracial marriages as a proportion of all marriages has been increasing since, such that 15.1% of all new marriages in the United States were interracial marriages by 2010 compared to a low single-digit percentage in the mid 20th century.
Virginia, but also continues to represent an absolute minority among the total number of wed couples.
According to the United States Census Bureau, the number of interracially married couples has increased from 310,000 in 1970 to 651,000 in 1980, to 964,000 in 1990, to 1,464,000 in 2000 and to 2,340,000 in 2008; accounting for 0.7%, 1.3%, 1.8%, 2.6% and 3.9% of the total number of married couples in those years, respectively.
The authors found that gender plays a significant role in interracial divorce dynamics: According to the adjusted models predicting divorce as of the 10th year of marriage, interracial marriages that are the most vulnerable involve White females and non-White males relative to White/White couples.
White wife/Black husband marriages are twice as likely to divorce by the 10th year of marriage compared to White/White couples, while White wife/Asian husband marriages are 59% more likely to end in divorce compared to White/White unions.