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_60727 ( "County" text, "Per capita income" text, "Median household income" text, "Median family income" text, "Population" real, "Number of households" real )

### Question ###
What is the highest Number of Households, when Per Capita Income is '$25,557', and when Population is less than '22,330'?

### Accurate SQL ###

SELECT MAX("Number of households") FROM table_60727 WHERE "Per capita income" = '$25,557' AND "Population" < '22,330'