Sex Ed

How Americans’ Views on Sexual Morality are Changing

July 1, 2019 by Justin Lehmiller

According to the results of Gallup’s 2019 Moral Issues Survey, Americans’ views on sexual morality continue to become more liberal overall. In fact, for many of the issues Americans were surveyed about, Gallup recorded the most liberal views on record.

Among the more notable changes are that Americans are increasingly comfortable with same-sex behavior, sex between unmarried adults, divorce, and having children outside of marriage. However, while major shifts have occurred in those attitudes in recent years, Americans’ attitudes toward other sex-related issues—especially things like abortion and infidelity—haven’t really changed much.

Check out the table below for a closer look at the numbers and how they have changed over the last two decades. Note that Gallup started asking about most of these topics in 2001-2003; however, they added more issues to the list around 2013 (including pornography, birth control, and sex between teenagers), which is why I put that year in the table as a reference point.

Percentage of Americans Who Think Each Behavior Is Morally Acceptable (Gallup, 2019)


As this table reveals, perhaps the most dramatic change to occur is that a large majority of Americans now believe that gay and lesbian sexual relations are morally acceptable. Public opinion on this issue has shifted in a major way since 2001. Back then, most Americans believed that same-sex behavior was immoral; however, that has changed alongside the important social and political gains made by the LGBT+ community in the last few years, including the fact that same-sex marriage is now legal throughout the nation.

Sex between unmarried men and women and divorce were rated as the most morally acceptable behaviors in 2001, and they continue to lead today. By contrast, both consensual non-monogamy (specifically, polygamy) and non-consensual non-monogamy (cheating) continue to be the least accepted.

That said, it is interesting to point out that the number of Americans who think polygamy is morally acceptable has more than doubled over the last 18 years. It would be interesting to know whether moral acceptance of other forms of consensual non-monogamy—by which I mean polyamory, open relationships, and swinging—has changed over this same time period. Unfortunately, Gallup has not regularly inquired about the acceptability of these other relationship configurations, which means we can’t really say what, if any, changes have occurred. I would hypothesize that their perceived acceptability has increased as well, but we need more data to know for sure.

It’s also worth noting that while attitudes toward abortion have remained remarkably stable since 2001, attitudes toward stem-cell research have become quite a bit more favorable during that same time period.

As for the new issues asked about in 2013, we can see that there have been some slight shifts in the moral acceptability of porn use and sex between teenagers; however, most Americans appear to find these issues morally unacceptable (which is interesting considering how common these behaviors are—most people have sex as teenagers and most people use porn at some point). By contrast, use of birth control is almost universally perceived as morally acceptable, with more than 9 in 10 Americans saying so.

With all of that said, it’s important to highlight that while Americans’ sexual attitudes overall are increasingly liberal, the numbers in the table above reveal that many Americans continue to hold traditional and conservative sexual values. This cultural divide is, of course, also regional, with attitudes being more liberal in the northeast and west, and more conservative in the south—and that helps to explain why sexual morality issues are so much more controversial in some states than others.

Table depicting changes in Americans’ attitudes toward sexual morality since 2001. Gallup data.

Want to learn more about Sex and Psychology? Click here for more from the blog or here to listen to the podcast. Follow Sex and Psychology on Facebook, Twitter (@JustinLehmiller), or Reddit to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.

Image Credit: 123RF

You Might Also Like:

Post Featured Image
Written by
Dr. Justin Lehmiller
Founder & Owner of Sex and Psychology

Dr. Justin Lehmiller is a social psychologist and Research Fellow at The Kinsey Institute. He runs the Sex and Psychology blog and podcast and is author of the popular book Tell Me What You Want. Dr. Lehmiller is an award-winning educator, and a prolific researcher who has published more than 50 academic works.

Read full bio >