The United States Naval Academy is mixed-sex.
Mixed-sex education , also known as mixed-gender education , co-education or coeducation ( abbreviated to co-ed or coed ) , is a system of education where males and females are educated together . The United States Naval Academy ( also known as USNA , Annapolis , or simply Navy ) is a four-year coeducational federal service academy in Annapolis , Maryland , United States .