How Often Do Married Couples Have Sex? Statistics and What's Normal

By the Love Language Lab editorial team · Updated September 26, 2026

If you've ever wondered how often do married couples have sex, and whether your relationship is "normal," you're far from alone. The honest answer is that the average is less interesting than it sounds. Here's what the most-cited research actually says.

How Often Do Married Couples Have Sex by Age?

An analysis of the U.S. General Social Survey by psychologist Jean Twenge and colleagues, covering more than 26,000 adults, found a clear age pattern in how often the average couple has sex:

Source: Twenge, Sherman & Wells (2017), Archives of Sexual Behavior, as reported by San Diego State University. Figures are for all adults, not only married couples. "Roughly" column is our conversion.

The same study found that frequency peaks around age 25 and then declines by about 3.2% each year. That decline is gradual and normal; it isn't a sign that something is wrong with your relationship.

Are Couples Having Less Sex Than Before?

Yes, on average. In the same analysis, Americans had sex about nine fewer times per year in 2010–2014 than in the late 1990s. The drop was larger for people who were married or living together: 16 fewer times per year in 2010–2014 compared with 2000–2004. Researchers pointed to possible reasons such as busier lives, more screen-based entertainment and lower overall happiness, but the data can't prove the cause.

Is Once a Week the Sweet Spot?

A widely cited 2016 study by Amy Muise, Ulrich Schimmack and Emily Impett looked at more than 30,000 people across three studies. People in relationships who had sex more often reported greater well-being, but only up to about once a week. Beyond that, the link with happiness leveled off.

That doesn't mean you should aim for exactly once a week. The researchers' point was the opposite: couples who feel pressure to keep up with some ideal number can relax. Connection and mutual satisfaction matter more than a count.

What Affects How Often Couples Have Sex?

• Age and health. Hormones, energy, medications and chronic conditions all play a role.
• Relationship length. Frequency often dips after the early "honeymoon" phase; that's typical.
• Kids. Young children bring exhaustion and little privacy. Twenge's study found the decline was especially large among people with school-age children.
• Stress and work. Long hours and money worries crowd out desire.
• Mental health. Depression, anxiety and some antidepressants can lower libido.
• Relationship satisfaction. Resentment, unresolved conflict and feeling unappreciated rarely make anyone feel close. Learning how your partner feels loved can help outside the bedroom too.

What Is a Sexless Marriage?

There's no official definition. Some researchers and therapists use "sexless" for couples who have sex fewer than about ten times a year or not at all in the past year. Plenty of couples in that range are content, for example because of health reasons or shared low desire. It becomes a problem when one partner is unhappy about it, which is sometimes called a dead bedroom.

When Should You Worry?

Frequency on its own isn't a problem. It's worth paying attention if:

• One of you is consistently unhappy with how often you have sex
• There's been a sudden change you can't explain
• Sex has become a source of pressure, guilt or conflict
• Pain, erectile problems or loss of desire are involved (see a doctor; these are often treatable)

A doctor can rule out medical causes, and a certified sex therapist or couples therapist can help partners with mismatched desire find a middle ground.

Keep Reading

• GuideDead BedroomWhy desire fades and what helps.
• QuizLove Language TestHow do you and your partner feel loved?
• Game21 Questions for CouplesQuestions to reconnect.