Young women are moving away from exclusive heterosexuality faster than young men.

In a recent poll, Gallup found that LGBTQ identification has more than doubled since 2012, with especially high rates among Gen Z women, or those born between 1997 and 2012. In 2023, 28.5% of Gen Z women identified as LGBTQ , compared with 10.6% of Gen Z men.

As researchers who study sexuality, gender and young adulthood, we, along with our former colleague Sarah R. Young, have tracked these patterns in our Human Sexualities Research Lab since 2011. The national trend matches what our interdisciplinary team – spanning psychology, social work and gender studies – has documented over a decade.

Our most recent study asked whether young women and men are changing in similar ways across three measures of sexual orientation: sexual attraction, or who someone sees as a sexual partner; sexual behavior, or who their sexual contacts or partners actually are; and self-identification, or how they label their sexuality. Our findings suggest they are not. In our analysis, this gender gap is not only about who claims an LGBTQ identity; it is also about how the boundaries of heterosexuality are changing.

Women are drifting from exclusive heterosexuality

Identity is only one part of sexual orientation. People also differ in who they are attracted to and who they have sex with.

In a study now under review, our team examined 15 years of responses from more than 10,000 public university undergraduates in New York state between 2011 and 2026. We also analyzed more than 700 open-ended responses from 2024 and 2025 in which the same student population explained why they chose their particular sexual identities.

Our research found that, across 15 years, young women have steadily become less likely to report being exclusively attracted to the other sex. In 2011, about 22% of female students reported attraction that was not exclusively to men; by 2026, that had increased to close to 50%. Similar movement appeared across sexual behavior and identity: The share of women who reported not having exclusively male sexual partners increased from 8% to 35%, while the share identifying as something........

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