Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_21282 ( "Official Name" text, "Status" text, "Area km 2" text, "Population" real, "Census Ranking" text )

### Question ###
What is the official name of the land with an area of 276.84 km2?

### Accurate SQL ###

SELECT "Official Name" FROM table_21282 WHERE "Area km 2" = '276.84'