This study examined the status of school trees in 53 school forests in Gyeongsangnam Province, classified them, and compared and analyzed each classification. We conducted a comprehensive survey of woody plants and collected general information such as school area, green space area, number of students, and symbolic trees and flowers. By school type, middle schools showed higher average green space, average number of trees, average green space area per student, and average number of trees per student than elementary and high schools, except for the average number of species. By location, urban schools had lower values in these indicators than non-urban schools, except for number of species. By establishment type, private schools showed higher values than public schools across all green-related indicators. By appearance, deciduous broad-leaved trees had the highest number of species. Frequently observed species included Juniperus chinensis ‘Kaizuka’, Camellia japonica, Rhododendron indicum, Ginkgo biloba, Lagerstroemia indica, Hibiscus syriacus, and Wisteria floribunda. The average diversity across all 53 schools was 2.33, with high schools, urban schools, and private schools showing higher scores than other types. We expect these results will provide baseline data for school forest planning in Gyeongsangnam Province.