CREATE TABLE table_13279 ("School" TEXT, "Location" TEXT, "Mascot" TEXT, "IHSAA Class" TEXT, "County" TEXT, "Year Joined" TEXT, "Year Left" TEXT, "Conference Joined" TEXT)

Which county do the Trojans come from?
SELECT "County" FROM table_13279 WHERE "Mascot" = 'trojans'
SELECT "County" FROM "table_13279" WHERE "Mascot" = 'trojans'