As of 2015, someone doesn't need a high school diploma to get into many community colleges and private colleges in the United States, according to Synonym. However, a high school diploma, GED or something equivalent is often required to get a college degree.
Getting into college is normally more dependent on success on a college placement test, according to Synonym. Testing demonstrates college readiness and aids the school in correctly placing the student in courses. An additional problem with going to college and not having a diploma or is that the student must normally pay for his education because federal financial aid requires a diploma or equivalent, reports Synonym.