Choropleth map showing the U.S. student to school counselor ratio in K-12 public education during the 2022-2023 school year. The state with the highest rate was Arizona, with 667 students for one counselor. Vermont had the least, with 177 students per one counselor. The U.S. average was 385. The suggested ratio, according to the American School Counselor Association, is 250 students per one counselor.