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_189598_7 ( population__2011_ INTEGER, land_area__km²_ VARCHAR )

### Question ###
When 6.00 is the land area in kilometers squared what is the highest population of 2011?

### Accurate SQL ###

SELECT MAX(population__2011_) FROM table_189598_7 WHERE land_area__km²_ = "6.00"