On average, U.S. couples have sex about 54 times per year — roughly once a week. That number declines with age and relationship length: couples in their 20s average 80+ times a year; couples in their 60s average 20-30. Frequency matters less than satisfaction. Couples who feel emotionally close and have sex any frequency they both want report similar relationship outcomes regardless of the number.
The Short Answer
The average married U.S. couple has sex 54 times per year — roughly once a week — per the General Social Survey (NORC, 2024). That number has been declining: in 1990 the average was 73 times per year.
But "average" is a poor benchmark for any specific couple. Frequency varies enormously by age, relationship length, life stage, health, and individual desire — and importantly, frequency by itself doesn't predict relationship satisfaction.
How Often by Age
Per Indiana University National Survey of Sexual Health and Behavior 2024, average sexual frequency by age group for partnered U.S. adults:
- 18-29: 78 times per year (~1.5x per week)
- 30-39: 68 times per year (~1.3x per week)
- 40-49: 56 times per year (~once a week)
- 50-59: 42 times per year (~once every 9 days)
- 60-69: 32 times per year (~once every 11 days)
- 70+: 18 times per year (~once every 3 weeks)
The decline is gradual through age 50, then accelerates. For couples 70+, frequency varies enormously — 40% of couples 70+ are still sexually active (AARP 2024).
How Often by Relationship Length
The "honeymoon period" effect is real and measurable. Per AARP and NSSHB combined data:
- Year 1: Average 112 times (more than twice a week)
- Years 2-5: 78 times
- Years 5-10: 60 times
- Years 10-20: 48 times
- Years 20+: 38 times
The largest single drop happens in years 1-5, primarily as the novelty of new sexual chemistry settles. After year 5, frequency stabilizes for most couples.
Married vs Cohabiting vs Dating
Counter to popular belief, married couples report similar sexual frequency to cohabiting couples and only slightly less than dating couples (controlled for age and relationship length).
- Dating but not living together: ~62 times per year
- Cohabiting unmarried: ~58 times per year
- Married: ~54 times per year
The gap is much smaller than the cultural narrative suggests. Where married couples report less is in the perceived "passion" and novelty — not in the raw frequency.
Why Frequency Declines Over Time
Several factors compound:
- Hormonal: Testosterone declines roughly 1% per year after age 30 in men. Estrogen drops sharply at perimenopause (typically mid-40s). Both reduce baseline desire.
- Medical: Sleep apnea, diabetes, hypertension medications, SSRIs all dampen libido. Most accumulate with age.
- Bandwidth: Career stress, parenting young children, caring for aging parents, financial strain — all narrow the cognitive space available for desire.
- Relationship factors: Unresolved conflict, contempt, and emotional distance reduce desire — especially for partners with responsive desire patterns.
- Habit: Patterns of avoidance and "we never have sex anymore" become self-reinforcing.
What Frequency Actually Predicts
Here's the surprising finding from 2015 University of Toronto research (Muise et al., replicated 2023): relationship satisfaction increases with sexual frequency up to about once per week — and then plateaus. Couples having sex twice a week report no higher relationship satisfaction than couples having sex weekly.
This means the goal isn't maximizing frequency. The goal is reaching whatever level both partners genuinely want. A couple having sex twice a month who both feel satisfied has a healthier sexual relationship than a couple having sex weekly with one partner feeling pressured.
How Often Should Couples Have Sex?
There's no medical or therapeutic prescription for frequency. The questions that matter:
- Is the frequency working for both of us?
- If not, can we talk about it without one of us feeling rejected or pressured?
- Are we both actively engaged, or has it become routine?
- Has there been a sustained drop (6+ months) without an obvious cause?
If you're below the average and content, that's fine. If you're above the average and one partner feels coerced, that's a problem. Frequency is a downstream measurement, not the metric.
When Low Frequency Becomes a Concern
The 10-or-fewer-times-per-year threshold is where research starts calling a marriage "sexless." But the more useful warning signs:
- Frequency has dropped substantially and stayed there for 6+ months.
- One partner regularly feels rejected or unwanted.
- Initiating feels too risky for the lower-desire partner.
- Resentment is growing on either side.
- Affection in general is also declining.
For more on what to do, see our guides on sexless marriage and dead bedroom fixes.
Frequently Asked Questions
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What is the average number of times a couple has sex per week?
On average, U.S. couples have sex about once a week (54 times per year), per the General Social Survey 2024. Frequency varies by age — couples in their 20s average closer to twice a week; couples in their 60s closer to once every two weeks.
Is once a month a sexless marriage?
Technically no — once-monthly is above the clinical "sexless" threshold (10 times per year). But the more important question is whether both partners are satisfied with that frequency. A couple having sex once a month who both feel content has a healthier sexual relationship than a couple having weekly sex with one feeling pressured.
How often do married couples have sex compared to dating couples?
Surprisingly close. Married couples average ~54 times per year; cohabiting couples ~58; dating couples ~62 (controlled for age). The gap is much smaller than cultural narratives suggest. Married couples often report lower perceived "passion" but similar raw frequency.
Does sex frequency decline with age?
Yes, gradually. Couples in their 20s average about 78 times per year, dropping to ~32 times per year for couples in their 60s. The decline accelerates after age 50, primarily due to hormonal changes (testosterone, perimenopause) and accumulating medical factors.
Is more sex better for relationships?
Up to a point. Research from the University of Toronto (Muise et al.) shows relationship satisfaction increases with sexual frequency up to about once a week — and then plateaus. Couples having sex twice a week report no higher satisfaction than couples having sex weekly. Quality matters more than frequency.
What is the 1% rule for sex in marriage?
The "1% rule" is a folk concept (not from formal research) suggesting couples should aim for sex at least 1% of the time — about 4 days a month, or roughly weekly. It's a useful rough heuristic but not a clinical standard. The actual right frequency is whatever both partners genuinely want.
Related Reading
- Sexless Marriage Guide
- Mismatched Libidos
- Intimacy in Relationships Statistics
- Sexless Marriage Statistics
Last updated: April 27, 2026. This article is reviewed by Kayla Crane, LMFT. The information above is for educational purposes and not a substitute for medical advice or licensed therapy.