Roughly one in three ever-married American adults has gone through a divorce, and among people ages 55 to 64 that figure climbs to about 43%, according to U.S. Census Bureau data released in 2021. Buried inside those numbers is a pattern that’s held up across decades of research: second marriages are more likely to end in divorce than first ones. The popular explanation is that people rush into a second marriage, still raw from the first, and choose badly under pressure. The research doesn’t back that up. What it points to instead is what happens after the wedding, not before it.
The gap is real, but it’s not what people assume
Sociologist Lowell Hargens, using four decades of data from the National Longitudinal Survey of Youth tracking women born between 1957 and 1964, confirmed in a 2019 study published in Demographic Research that second marriages are indeed more likely than first marriages to end in divorce, at every point along the marriage timeline he measured. He also found something that gets lost in most conversations about the topic: the gap between first- and second-marriage divorce rates has been narrowing over time, meaning it’s smaller today than it was for earlier generations. Second marriages are still riskier. They’re not the near-guaranteed failure that the widely repeated, and largely untraceable, claim of a 60% second-marriage divorce rate would suggest.
It’s not who you married. It’s who else moved in.
If rushing into remarriage isn’t the driver, what is? Developmental psychologist E. Mavis Hetherington’s landmark longitudinal research, laid out in her book For Better or For Worse: Divorce Reconsidered and summarized by family researchers who’ve built on her findings, found that couples in stepfamilies experience roughly three times the stress of couples in first marriages during their first few years together. That’s not a metaphor about adjusting to a new spouse. Hetherington’s research specifically isolated stepfamily structure — a household where at least one partner is raising children from a previous relationship — as the mechanism, and it found that stepcouples raising children had a divorce rate roughly 50% higher than remarried couples without children in the house.
That distinction matters enormously, because it means “the second marriage divorce rate” isn’t really one number. A childless second marriage carries meaningfully less risk than a second marriage that immediately becomes a blended household, with two adults trying to build a partnership while also negotiating discipline, loyalty, finances, and grief with children who didn’t choose any of it. A new spouse stepping into a parenting role gets none of the years biological parents had to build trust and authority with a child. They’re expected to co-parent from day one, inside a household still adjusting to loss or separation, and that compressed timeline is where the real strain lives.
Why the timeline gets missed
Part of why this distinction rarely makes it into everyday conversation is that the popular divorce statistics people repeat don’t separate the two situations at all. The oft-cited figure that “60% of second marriages end in divorce” has no traceable source in Census data, and researchers who’ve gone looking for its origin have never been able to pin it down. What the real research shows is more specific and, honestly, more useful: risk isn’t evenly distributed across every second marriage. It concentrates hardest in the first several years of a remarriage that also involves stepchildren, which is exactly the period when a new couple has the least practice navigating conflict as a unit and the most external pressure bearing down on them at once.
What actually predicts whether it lasts
None of this means blended families are doomed. Most stepfamily relationships don’t end in divorce, and Hetherington’s own research emphasizes that couples who build in time, keep expectations realistic, and don’t force instant “family” bonds fare considerably better than those who don’t. Family researchers who’ve expanded on her work also point to a related survey finding: couples entering a stepfamily who openly anticipate the difficulty ahead of time — expecting friction over discipline, loyalty, or a child’s grief — tend to weather it better than couples who assume love for a new partner will simply carry over into an easy relationship with that partner’s kids. Anticipating the hard part turns out to be protective in itself. But the popular narrative about second marriages has still been pointed at the wrong moment. The danger isn’t the decision to remarry, made too fast or for the wrong reasons. It’s the years immediately afterward, when a new couple is also quietly building a new family structure around children who are adjusting to loss on a completely different timeline than the adults are adjusting to love.
Second marriages don’t fail because people didn’t learn their lesson the first time. They fail, more often, because nobody warned them that falling in love again and building a stepfamily are two separate projects, running on two separate clocks — and that the second one is usually the harder of the two.
