Is cheating common in America?

Is Cheating Common in America?

Infidelity has long been a topic of curiosity and concern in American relationships, and research suggests it’s more common than many might assume. According to the Janus Report on Sexual Behavior in America, one-third of married men and nearly a quarter of married women have admitted to having an extramarital affair at some point. While that report is older, more recent data from the University of Chicago's General Social Survey (GSS)—often cited by The New York Times as the most reliable source on the subject—paints a somewhat fluctuating but still significant picture of cheating in modern relationships.

The GSS, which has tracked social behaviors for decades, shows that around 15% to 20% of married individuals report having had sex with someone other than their spouse during their marriage. These numbers vary slightly depending on age, education, and generation, but the pattern remains consistent: infidelity touches a notable portion of relationships across the country.

It's also important to recognize that "cheating" doesn’t always mean physical affairs. Emotional infidelity—forming deep, intimate connections outside the relationship—has become more common in the digital age, with social media and dating apps blurring lines.

Still, most Americans continue to value fidelity. Surveys consistently show that the majority disapprove of cheating, viewing it as a serious breach of trust. Yet, despite cultural disapproval, the reality is that a significant minority of people do cross that line. Whether due to personal dissatisfaction, opportunity, or other complex emotional factors, infidelity remains a complicated and enduring part of the American relationship landscape.

While not the norm, cheating is far from rare—and understanding why it happens may be more important than passing judgment.