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_170961_2 (census_ranking VARCHAR, population VARCHAR)

### Question ###
when the population was 1599, what was the census ranking?

### Accurate SQL ###

SELECT census_ranking FROM table_170961_2 WHERE population = 1599