The median for married couples is about three times per month, though there’s a wide range of normal. Roughly half of married couples have sex weekly or more, while nearly half report less than once a week. Where you fall on that spectrum depends heavily on age, how long you’ve been together, and the everyday demands of your life.
What the Numbers Actually Look Like
The General Social Survey, one of the longest-running studies of American behavior, breaks down sexual frequency among adults like this: 25% have sex about once a week, 19% two to three times a month, 17% once a month, and 16% two to three times a week. At the extremes, 5% report four or more times per week, while 10% had no sex at all in the past year. A separate dataset from 2016 to 2018 found that about 58% of married men and 61% of married women reported having sex weekly or more, with roughly a third landing in the one-to-three-times-a-month range.
These numbers also appear to be declining. In 1990, 55% of U.S. adults aged 18 to 64 reported weekly sex. By 2024, that figure had dropped to 37%. The reasons behind this shift are still debated, but the trend is consistent across multiple surveys.
How Frequency Changes With Age
Sex tends to be most frequent in your late 20s through early 40s, then gradually tapers. A 2020 survey found that about 50% of men and 53 to 54% of women aged 25 to 44 have sex at least once a week. Among younger adults (18 to 24), the numbers are actually lower, with 37% of men and 52% of women hitting that weekly mark.
The steepest drop-off happens in your 50s. That said, the majority of people in their 50s and early 60s remain sexually active. An Irish study found 75% of people aged 50 to 64 were still having sex, compared to 23% of those 75 and older. The decline is driven largely by health changes, lower energy, reduced sex drive, and medications that affect arousal or desire.
Once a Week Seems to Be the Sweet Spot
If you’re wondering what frequency is “enough,” research from the Society for Personality and Social Psychology offers a surprisingly clear answer. Couples who have sex about once a week report the highest levels of relationship satisfaction. More frequent sex was associated with slightly more happiness, but the benefits plateaued at once a week. Having sex three or four times a week didn’t make couples measurably happier than once a week did.
This doesn’t mean once a week is a magic number for every couple. It’s a statistical average, and individual needs vary enormously. The real takeaway is that chasing a higher number for its own sake probably won’t improve your relationship. Quality and connection matter more than frequency.
What Counts as a Sexless Marriage
Researchers generally define a sexless marriage as having sex fewer than 10 times per year. By that standard, about 20% of American marriages qualify. That’s a significant number, and it doesn’t necessarily signal a failing relationship. Some couples are perfectly content with little or no sex, particularly later in life or when both partners have low desire.
Where it becomes a problem is when there’s a mismatch: one partner wants more while the other doesn’t. That gap in desire, not the raw number, is what tends to create friction and dissatisfaction.
Why Frequency Drops Over Time
The single biggest factor in declining sexual frequency is aging, followed by relationship unhappiness. But plenty of other forces chip away at a couple’s sex life well before those become relevant.
- Young children. The physical toll of childbirth, sleep deprivation, and the constant demands of child-rearing leave many parents too exhausted. This is one of the most common periods for a sharp, temporary decline.
- Work and scheduling. Mismatched schedules, long hours, and the mental drain of demanding jobs reduce both opportunity and energy.
- Sexual routine. Having sex with the same person in the same way over years can lead to habituation. Novelty fades, and sex can start to feel like just another item on the to-do list.
- Stress and mental health. Depression, anxiety, and chronic stress directly suppress desire in both men and women.
- Relationship conflict. Unresolved resentment, poor communication, or infidelity can make physical intimacy feel unappealing or even aversive.
Many of these factors are temporary or manageable, which is why frequency often rebounds after a difficult stretch. Couples who went through a dry spell during early parenthood, for instance, commonly see their sex life recover as children get older and sleep returns to normal.
The Health Benefits of Regular Sex
Beyond relationship satisfaction, regular sexual activity with a partner offers measurable physical benefits. These include lower blood pressure, better immune function, improved heart health, reduced pain, and better sleep. Sex triggers a cascade of feel-good brain chemicals, including oxytocin, which strengthens emotional bonding and lowers stress hormones.
Interestingly, sex within a loving relationship produces a stronger hormonal response than solo sexual activity. The emotional closeness, skin-to-skin contact, kissing, and mutual satisfaction all contribute to the release of bonding hormones that you don’t get as much of on your own. That said, the physical benefits like pain relief and better sleep still apply regardless of whether you have a partner.
What “Normal” Really Means
The most honest answer to “how often should we be having sex?” is: as often as both of you feel satisfied with. Averages are useful for context, not as benchmarks to measure yourself against. A couple having sex twice a month and feeling genuinely happy with that frequency is in better shape than a couple having sex three times a week while one partner feels pressured.
If you’re noticing a gap between what you want and what’s happening, the frequency itself isn’t the problem to solve. The conversation about desire, connection, and what’s getting in the way is where most couples find their footing again.