The typical number is about 4 for women and about 6 for men. A CDC survey ran from 2015 to 2019. It asked people ages 25 to 49 how many opposite-sex partners they had in their life. The middle answers were 4.3 for women and 6.3 for men who had sex. "Body count" is slang for that number. People reported it themselves. The count covers only opposite-sex partners in one age group.
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What "body count" means in the survey
"Body count" is internet slang for a person's lifetime sex partners. It is fair to ask where your own number sits. The closest federal source is the National Survey of Family Growth, a CDC survey of people ages 15 to 49 in U.S. homes. People typed answers to private questions on a computer, so they did not have to say them aloud.
The published figure counts opposite-sex partners across a person's whole life. For this question, the survey counts someone as sexually experienced if they have had vaginal, oral, or anal sex with an opposite-sex partner. People with no partners are left out of the median, and same-sex partners are left out of the count.
So who got counted? When you see 4.3 or 6.3 here, it means the middle answer among sexually experienced women or men ages 25 to 49, gathered from 2015 to 2019. Adults outside that age range, other kinds of partners, and any single year of age all sit outside the room.
Why a median, and why other numbers online run higher
A median is the middle answer: about half of people reported fewer partners and about half reported more. That makes it a fairer guide to what is typical than a mean, which is the total divided by the number of people.
Partner counts are lopsided. Line everyone up by their answer and the median is the person standing in the middle of the line, while a few people at the far end can drag a mean down the hall with them. The top published group, 15 or more, has no upper limit, which is why an "average" quoted as a mean can sit above the median for the same group.
Many of the figures you will see in search results also come from different kinds of surveys: online polls, company surveys, or rankings stitched together from several sources. Before comparing any of them with the CDC numbers, it's worth asking who was in the room, how old they were, whether the figure is a mean or a median, and what counted as a partner. If the source does not say, treat the number as a rough talking point.
The spread is wide for both men and women
The middle number hides a lot of variety. Among sexually experienced women ages 25 to 49, 17.7% reported one lifetime partner and 12.9% reported 15 or more. Among men the same age, 11.2% reported one partner and 28.3% reported 15 or more, and the table below shows every published group.
Adding neighboring groups gives a few easy reference points. About 47% of women and about a third of men reported 1 to 4 partners, while about 25% of women and about 41% of men reported 10 or more. Those sums are our arithmetic on the published percentages.
A count from the past year measures something different. The same survey found that 2.0% of women and 2.9% of men ages 15 to 49 reported five or more opposite-sex partners in the past 12 months, for 2015 to 2019. A lifetime number is a total that builds over the years, so reading it as a yearly pace would mislead.
Why men and women report different numbers
Men in this survey report more opposite-sex partners than women do. You might expect the two totals to match, since each opposite-sex pairing involves one man and one woman. The survey does not cover that closed loop, though.
The figures cover only people ages 25 to 49 living in US households, and their partners can be younger, older, living elsewhere, or outside the survey for other reasons. People may also count differently, for example in what they include as sex, and anyone with a long history may be estimating rather than counting one by one.
The CDC table reports the gap and does not explain it. We cannot tell you which of these reasons matters most, and we would be careful with anyone who offers one confident reason.
What the data can and cannot say by age
The CDC key statistics publish lifetime partner numbers for one broad group, ages 25 to 49, with no medians for narrower bands such as 25 to 29 or 30 to 34. An older NCHS report did break lifetime partners out by age group, but its data are from 2006 to 2008 and cover ages 15 to 44. We looked for a CDC table that does this for 2015 to 2019 and did not find one.
That matters if your question is about age. A lifetime count can only stay the same or grow as a person gets older, and the 25 to 49 group mixes people at very different points in life. So the 4.3 and 6.3 medians describe that whole crowd and cannot stand in for a 25-year-old or any single age.
The 2022 to 2023 survey files are public, and a researcher could compute by-age numbers from them with the survey weights. We have not done that, so you won't find by-age medians here.
State and country rankings use different measures
You will find rankings of partner numbers by state or by country. The CDC key statistics used here publish no state figures, so they cannot confirm or correct a state ranking.
A fair ranking needs the same question, asked the same way, of comparable people in every place, and many rankings do not show that. If a ranking does not say who was surveyed, how people were recruited, the age range, and whether it reports a mean or a median, its numbers cannot be lined up against the national survey figures here.
Does a partner's number matter?
Whether a partner's number matters is a personal question, and the data cannot answer it for you. Research can show how people tend to react. A 2025 study in Scientific Reports asked 5,331 people in 11 countries to rate hypothetical profiles with 4, 12, or 36 past partners, and willingness to consider a long-term relationship fell as the number rose. The pattern of that history over time also mattered to the people rating.
The same study found that differences between male and female participants were small and inconsistent, so men and women taking part reacted to a higher number in similar ways. The samples were recruited online, through universities, and through recruitment firms, and nobody chose them to represent a country. Rating a fictional profile is also different from choosing a real partner.
Preferences about history sit alongside every other standard people bring to dating. If you want to see how standards differ, read how men's and women's dating standards compare and whether your dating standards are too high.
What this means for your dating pool
The dating pool calculator has no sexual-history filter, and no census table records anyone's lifetime number. The survey figures above describe a crowd, so read them as a picture of that crowd, not a forecast about any one person you might meet.
The things you can measure about your own pool are more concrete: age, height, income, education, marital status, smoking, and where people live. If you want a number that reflects your situation, set those filters in the dating pool calculator and read how the estimate is built before relying on the result.
Lifetime opposite-sex partners, ages 25 to 49, 2015 to 2019
The table may be wider than the screen. Focus it and use the arrow keys to reach every column.
| Lifetime partners | Women | Men |
|---|---|---|
| 1 | 17.7% | 11.2% |
| 2 to 4 | 29.2% | 22.3% |
| 5 to 9 | 28.6% | 25.8% |
| 10 to 14 | 11.6% | 12.5% |
| 15 or more | 12.9% | 28.3% |
| Median (published) | 4.3 | 6.3 |
Who is counted? Women and men ages 25 to 49 in US households who have had vaginal, oral, or anal sex with an opposite-sex partner. People with no partners and same-sex partners are not included.
How to read it: Read each column on its own. The survey publishes no row above 15, so it cannot say how many people reported 20 or 30 partners.
Download the table (CSV) ↓