Roughly 1 in 4 sexual assaults are reported to police, though estimates vary by survey year and population. Among college students, only about 20% report to law enforcement. In workplaces, the gap is even wider: an estimated 90% of people who experience harassment never file any formal complaint. By almost every measure, sexual assault remains one of the most underreported violent crimes in the United States.
What National Data Shows
The most widely cited figures come from the National Crime Victimization Survey (NCVS), which the Bureau of Justice Statistics conducts annually by interviewing tens of thousands of U.S. households. Because it asks people directly about their experiences rather than relying on police records, the NCVS captures crimes that were never reported to authorities. Its 2024 data shows that across all violent crimes, roughly half of victimizations were reported to police (11.2 per 1,000 people reported to police out of 23.3 per 1,000 total). Sexual assault consistently falls well below that average, with reporting rates historically hovering between 20% and 35% depending on the year.
RAINN, the nation’s largest anti-sexual-violence organization, uses NCVS data and Department of Justice figures to build a picture of what happens across 1,000 sexual assaults. Of those 1,000 incidents, only about 310 are reported to police. That means close to 7 out of every 10 go unreported entirely.
Reporting Rates on College Campuses
College-age women face higher rates of sexual violence than almost any other demographic group, yet they report at lower rates. Only about 20% of students who experience sexual violence report it to law enforcement. That means 4 out of 5 campus incidents never reach police. Students may report to a campus Title IX office instead, but those reports don’t enter the criminal justice system and don’t appear in crime statistics.
Reporting in the Workplace
Workplace sexual harassment and assault are even less likely to result in a formal report. A 2016 EEOC study found that 90% of people who experienced workplace harassment never took formal action, whether that meant filing a complaint with HR, contacting the EEOC, or going to police. Fear of professional retaliation, concern about being labeled a troublemaker, and power imbalances between employees and supervisors all contribute to that gap.
Why Most Victims Don’t Report
The reasons are layered, and most victims cite more than one. Research compiled by the Office of Justice Programs identifies several recurring barriers:
- Fear of not being believed. Many victims worry that without physical evidence or witnesses, their account will be dismissed.
- Fear of retaliation. This can mean physical harm from the perpetrator, social consequences within a friend group or workplace, or online harassment.
- Self-blame. Victims frequently question whether their own behavior, such as drinking or choosing to be alone with someone, contributed to the assault.
- Fear of police and court procedures. The prospect of repeated questioning, a defense attorney cross-examination, and having to recount details publicly deters many people from entering the legal system.
- Fear of being blamed. This overlaps with self-blame but involves anticipating judgment from others, including family, friends, or law enforcement.
- Shock and denial. Trauma responses can delay a victim’s ability to process what happened, sometimes for weeks or months, by which point they may feel it’s “too late” to report.
- Being under the influence of alcohol. Victims who were drinking at the time often fear their credibility will be questioned or that they’ll face scrutiny for their intoxication rather than sympathy for the assault.
These barriers don’t operate in isolation. A college student assaulted by a classmate at a party, for example, may simultaneously fear social retaliation, blame herself for drinking, doubt she’ll be believed without physical evidence, and dread the idea of a campus investigation. Each additional barrier makes reporting less likely.
What Happens After a Report Is Filed
Even when a sexual assault is reported, the path to accountability is steep. For every 1,000 sexual assaults, about 310 are reported to police. Of those, roughly 50 lead to an arrest. Only about 28 result in a felony conviction, and just 25 perpetrators are ultimately sentenced to incarceration. That means approximately 2.5% of all sexual assaults end with the perpetrator serving time. Nearly 98% of perpetrators are never held fully accountable through the criminal justice system.
This steep drop-off happens at every stage. Cases can stall because of insufficient evidence, because prosecutors decline to file charges, because victims withdraw their participation in the process, or because plea deals reduce charges to lesser offenses. The result is a system where the likelihood of consequences for the perpetrator is extremely low, which in turn reinforces the perception among victims that reporting won’t lead anywhere meaningful.
How Reporting Rates Differ by Relationship
The relationship between victim and perpetrator heavily influences whether a report is made. Assaults by strangers are more likely to be reported than those committed by someone the victim knows. Yet the vast majority of sexual assaults are committed by acquaintances, partners, or family members. When the perpetrator is a current or former intimate partner, victims face additional barriers: financial dependence, shared custody of children, ongoing proximity, and the complicated emotions that come with being harmed by someone they trusted. When the perpetrator is a family member, pressure from relatives to stay silent can be intense, particularly when the victim is a child or adolescent.
This dynamic helps explain the overall reporting gap. The crimes most likely to go unreported are the ones that happen most often.