Roughly a third of Americans who got married within the past decade are married to someone from a different religious background, according to Pew Research Center’s newest analysis of religious intermarriage. That’s a striking jump from older generations of married couples, where interfaith pairings were closer to 1 in 5. Somewhere along the way, marrying inside your faith stopped being the default assumption for a huge share of couples, and marrying outside it stopped being a footnote. The shift didn’t happen because people suddenly care less about religion in a relationship. It happened because the entire religious landscape underneath American marriage has quietly rearranged itself.
The Timeline Tells the Real Story
What makes Pew’s data useful is that it doesn’t just report a single national number, it tracks the trend across when couples actually got married. Marriages that started decades ago look far more religiously matched than marriages that started recently, and the gap between those two groups is wide enough that it reads less like a gradual drift and more like a generational break. Couples married before 1960 were overwhelmingly matched in faith. Couples married in the 2010s and 2020s are not, at nowhere near the same rate. That kind of movement, tracked over a single lifetime, says something about how much less religion functions as a sorting mechanism for who people end up choosing.
The “Nones” Are Doing a Lot of the Work
A big driver behind the numbers is the rise of religiously unaffiliated Americans, often shorthanded as “nones.” When one partner identifies with no religion and the other identifies with any faith tradition, Pew counts that as an interfaith marriage, and that pairing has become far more common as the unaffiliated share of the population has grown. This matters because it reframes what “interfaith” even means in 2026. It’s not primarily Catholics marrying Protestants or Protestants marrying Jewish partners, the classic version of the story from your grandparents’ generation. It’s frequently a religious partner and a partner with no formal religious identity at all, building a household where faith is present for one person and largely absent for the other, and negotiating from there.
Some Faiths Still Hold the Line, Others Don’t
Not every religious group is intermarrying at the same pace, and that unevenness matters more than the topline number. Groups with strong communal identity and clear boundaries around marriage, including Latter-day Saints, Muslims, Hindus, and Jewish Americans, tend to marry within their own faith at meaningfully higher rates than the national average, per Pew’s breakdown by religious tradition. Meanwhile, groups without the same institutional cohesion, or without as much community pressure around endogamy, show much higher rates of marrying out. What that tells you is that “interfaith marriage is rising” isn’t one uniform social trend sweeping across the country evenly. It’s several smaller trends stacked together, some communities changing dramatically and others staying nearly as closed as they were fifty years ago.
Why This Matters Beyond the Statistics
For a long time, interfaith marriage got treated in casual conversation as a minor complication, something to note at Thanksgiving, mention to a wedding planner, or bring up gently with in-laws. The scale in this data suggests it deserves to be treated as something closer to the norm than the exception, particularly for anyone under 40. That has real downstream effects. It changes how couples plan holidays, how they decide what to teach their kids, and how extended families negotiate rituals that used to be assumed rather than discussed. Couples navigating this aren’t unusual anymore, they’re representative of where a large chunk of the married population already sits.
None of this means religion has stopped mattering to relationships. It means the assumption that a shared faith comes first, and a relationship gets built around it, no longer describes how a huge share of American marriages actually start. Faith is increasingly something couples build compatibility around after they’ve already fallen for each other, not a prerequisite that filters who they meet in the first place. That’s a bigger cultural shift than a single statistic can fully capture, but the numbers make it impossible to keep calling it rare.
