The average American couple has sex about once a week, though nearly half of married couples fall below that mark. A 2019 study found that 47% of married couples have sex less than once a week, and General Social Survey data shows that 25% of adults have sex weekly while another 16% report two to three times per week.
What the Numbers Actually Look Like
Sexual frequency among American adults spans a wide range. General Social Survey data breaks it down like this: 5% of adults have sex four or more times a week, 16% have sex two to three times a week, 25% have sex about once a week, 17% about once a month, and 19% two to three times a month. On the other end, 10% reported no sex at all in the past year, and 7% had sex only once or twice over that period.
That “once a week” average gets thrown around a lot, but it masks enormous variation. A couple having sex three times a month and a couple having sex twice a week are both well within normal range. There is no single number that defines a healthy sex life.
How Frequency Changes With Age
Sexual frequency holds surprisingly steady through the 20s, 30s, and early 40s. A 2020 survey found that about 50% of men and 53-54% of women ages 25 to 44 have sex at least once per week. The numbers for 18-to-24-year-olds are actually lower: 37% of men and 52% of women in that age group reported weekly sex, likely reflecting the fact that younger adults are less likely to have a steady partner.
The sharpest drop happens in the 50s. Survey data collected between 1989 and 2014 identified that decade as the point where frequency declines most noticeably. Still, sex doesn’t disappear with age. A study from Ireland found that 75% of people ages 50 to 64 remained sexually active, though that figure dropped to 23% for those 75 and older.
Americans Are Having Less Sex Than Before
There’s a broader trend worth knowing about. In 1990, 55% of U.S. adults ages 18 to 64 reported having sex weekly. By 2010, that dropped below 50%. By 2024, only 37% of respondents reported weekly sexual activity. Researchers have called this pattern “the great sex recession,” and it cuts across age groups, though younger adults have seen some of the steepest declines.
The reasons are debated but likely include longer working hours, increased screen time, rising rates of living alone, and shifting social dynamics around dating and relationships. The decline isn’t unique to any one demographic.
The Once-a-Week Happiness Threshold
If you’re wondering whether more sex means a happier relationship, the research points to a clear ceiling. A study published in Social Psychological and Personality Science tracked more than 2,400 married couples over 14 years and found that relationship satisfaction increased as sexual frequency went up, but only to a point. Once couples reached about once a week, the happiness benefits plateaued. Having sex more often than that didn’t make couples measurably happier.
This doesn’t mean once a week is the “right” amount. It means that couples who feel pressure to hit some higher number aren’t likely to gain much from it. Quality and connection matter more than frequency past that threshold.
When Partners Want Different Amounts
Mismatched desire is one of the most common sexual complaints in long-term relationships, and the data confirms it’s widespread. In a study of married couples, only 37% of husbands reported that their desired frequency matched their actual frequency. Wives showed more alignment, with 52% reporting a match between what they wanted and what was happening. Among couples with a gap, 48% of husbands wanted more sex than their wives, while only 18% of wives wanted more than their husbands.
These gaps are normal and don’t necessarily signal a problem. They become an issue when the difference goes unaddressed and one or both partners feel rejected or pressured. The size of the gap matters less than how the couple communicates about it.
What Counts as a “Sexless” Relationship
Therapists and researchers commonly define a sexless marriage as one where the couple has sex fewer than 10 times a year. By that measure, about 20% of American marriages qualify. That label can sound alarming, but it doesn’t automatically indicate unhappiness. Some couples have low sexual frequency by mutual preference and report high relationship satisfaction. The term is most useful when one or both partners are distressed by the lack of intimacy, not as a diagnosis in itself.
How the U.S. Compares Globally
Americans report some of the lowest rates of weekly sex among surveyed countries. A large global survey by Durex found that only 53% of Americans reported having sex weekly, tying with Nigeria at the bottom of the list among 26 countries. Greece topped the rankings at 87%, followed by Brazil at 82% and Russia at 80%. Japan came in last at 34%.
Cultural factors, work-life balance, and social norms around sexuality all play a role in these differences. Countries in Southern Europe and South America consistently report higher frequencies, while East Asian countries and English-speaking nations tend to cluster lower. The global average across all 26 countries was 67% reporting weekly sex.