CREATE TABLE table_21381 ("Official Name" TEXT, "Status" TEXT, "Area km 2" TEXT, "Population" FLOAT, "Census Ranking" TEXT)

What is the area of the community with a population of 1209?
SELECT "Area km 2" FROM table_21381 WHERE "Population" = '1209'
SELECT "Area km 2" FROM "table_21381" WHERE "Population" = '1209'