Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_84 (area_km_2 INTEGER, population VARCHAR, official_name VARCHAR)
### Question:
What is the highest area for locations named Centreville having populations over 532?
### Answer:
SELECT MAX(area_km_2) FROM table_name_84 WHERE population > 532 AND official_name = "centreville"