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_1425958_1 (density__pop_km²_ VARCHAR)

### Question ###
How many locations had a density (pop/km²) of 91.8 in the 2011 census?

### Accurate SQL ###

SELECT COUNT(2011 AS _census) FROM table_1425958_1 WHERE density__pop_km²_ = "91.8"