CREATE TABLE table_26252 ("Year" TEXT, "District-wide" FLOAT, "High schools" FLOAT, "Middle schools" FLOAT, "Elementary schools" FLOAT, "Other programs & adjustments" FLOAT)

Name the most high schools for 31851
SELECT MAX("High schools") FROM table_26252 WHERE "District-wide" = '31851'
SELECT MAX("High schools") FROM "table_26252" WHERE "District-wide" = '31851'