Across the board, the nation has seen a decline in marriage rates. Stacker used marriage statistics from the CDC/National Center for Health Statistics to determine how marriage rates in every state have changed since 1990.
Data from the Centers for Disease Control and Prevention (CDC) show the national average marriage rate is down from 9.8 marriages per 1,000 people in 1990 to 6.5 per 1,000 in 2018. Over the course of the 20th century, the shifting patterns of marriage behavior in the United States are more stark: Between 1960 and 2010, the percentage of adults who were married went from 72% to 51%. The dramatic shift has created lasting changes in American society and the country's economy.