TUCSON, Ariz. (13 News) - New data shows students from high-income zip codes are enrolled in Arizona’s ESA program at a higher rate than students from low-income neighborhoods, according to the Arizona Department of Education’s new numbers on Empowerment Scholarship Account enrollment. According to a recent report, 11.2% of students in high-income zip codes are enrolled in Arizona’s ESA program. That’s in comparison to just 4% of students in low-income zip codes.