CREATE TABLE table_50651 ("Official Name" TEXT, "Status" TEXT, "Area km 2" FLOAT, "Population" FLOAT, "Census Ranking" TEXT)

What is the highest area for locations named Centreville having populations over 532?
SELECT MAX("Area km 2") FROM table_50651 WHERE "Population" > '532' AND "Official Name" = 'centreville'
SELECT MAX("Area km 2") FROM "table_50651" WHERE "Official Name" = 'centreville' AND "Population" > '532'