The vast majority of sexual perpetrators are male. According to multiple sources:

• Nearly 99% of perpetrators of rape and sexual assault are male in the U.S.

• The U.S. Sentencing Commission reported that 93.6% to 92.1% of sexual abuse offenders were men in recent years

• The Australian Bureau of Statistics found that 97% of sexual assault offenders were male over a decade-long period

• Studies on child sexual abuse estimate that 75% to 90% of perpetrators are male or male adolescents

In summary, the percentage of sexual perpetrators who are male generally ranges from about 90% to nearly 99% depending on the specific type of sexual violence and jurisdiction, with most estimates clustering around 90-97%.