If you are a resident of New Jersey, 16 years of age or older, and not currently enrolled in any high school, then the Palmyra Adult High School offers the exciting opportunity to earn a high school diploma. Successful completion of our adult high school leads to an actual Palmyra High School diploma. You can receive credit for previous schooling, military training, work experience, on-the-job training, apprentice programs, occupational license, and community volunteer service