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_17416221_1 ( area__km_2__ INTEGER, largest_city VARCHAR )

### Question ###
what is minimum area where the largest city is bloemfontein?

### Accurate SQL ###

SELECT MIN(area__km_2__) FROM table_17416221_1 WHERE largest_city = "Bloemfontein"