CREATE TABLE table_203_413 (id DECIMAL, "rank" TEXT, "city" TEXT, "population" DECIMAL, "area\ ( km2 ) " DECIMAL, "density\ ( inhabitants/km2 ) " DECIMAL, "altitude\ ( mslm ) " DECIMAL)

which communes have a population above 30,000 ?
SELECT "city" FROM table_203_413 WHERE "population" > 30000
SELECT "city" FROM "table_203_413" WHERE "population" > 30000