The camp receives OMH local assistance funding through the County Department of Mental Health. The campers, all of whom live in Cattaraugus County, range in age from eight through early adolescence. About half the children are from the city of Olean, with the rest coming from small towns or farms. The camp runs three nine-day sessions, accommodating a total of 120 children. If more funding were available, the MHA would like to institute more sessions so that they could focus on different age groups at different sessions.
Many campers return season after season.
Occasionally a child who has attended the camp has later returned as a counselor. Some of the children have parents who attended as campers. While New York State requires a ratio of one staff member for eight campers, Camp New Horizons has one staff member for every four campers. The staff come from diverse backgrounds. Many have education degrees, others are psychology students and social workers.