CREATE TABLE table_76571 ("Official Name" TEXT, "Status" TEXT, "Area km 2" FLOAT, "Population" FLOAT, "Census Ranking" TEXT)

When the status is rural community what's the lowest area in kilometers squared?
SELECT MIN("Area km 2") FROM table_76571 WHERE "Status" = 'rural community'
SELECT MIN("Area km 2") FROM "table_76571" WHERE "Status" = 'rural community'