The average age for a first marriage is getting older and older...

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Like many young adults today, the Beckers waited to marry until they felt the time was right. Others are also holding off while maintaining a single-but-together status that can last years. That may be one reason the age at first marriage has been climbing steadily for all racial, ethnic and socioeconomic groups. The median age is now the oldest since the U.S. Census started keeping track in the 1890s: almost 26 for women and almost 28 for men.

 

And as young people wait longer to marry, there is growing debate over whether waiting is a good idea, and if so, how long is best. Those who advocate marriage in the early to mid-20s say that's the age when the pool of possible mates is larger, it's when couples can "grow up" together and it's prime for childbearing. But others favor the late 20s or early 30s, saying maturity makes for happier unions and greater economic security — both of which make divorce less likely.

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http://www.usatoday.com/news/health/2008-11-09-delayed-marriage_N.htm?se=yahoorefer