CREATE TABLE table_1618 ("Official Name" TEXT, "Status" TEXT, "Area km 2" TEXT, "Population" FLOAT, "Census Ranking" TEXT)

What is the Area KM 2 of the place that has a Census ranking of 1,608 of 5,008?
SELECT "Area km 2" FROM table_1618 WHERE "Census Ranking" = '1,608 of 5,008'
SELECT "Area km 2" FROM "table_1618" WHERE "Census Ranking" = '1,608 of 5,008'