Eubanks was born in Starkville, Mississippi. He lived in Mississippi until his family moved to Oregon when he was two years old. Eubanks was primarily interested in baseball while growing up. He gained attention for his skills on the pitching mound and did not start playing basketball seriously until he was 14. Eubanks attended Reynolds High School in Troutdale, Oregon. In his senior year, he posted per-game averages of 16.7 points, 8.9 rebounds and 3.2 blocks. Learn more about Eubanks by following him on Twitter (@DrewEubanks12) and Instagram (@drewdatower).