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_16048129_5 (number_of_families INTEGER, average_family_size VARCHAR)

### Question ###
What is the most number of families in regions where average family size is 2.7?

### Accurate SQL ###

SELECT MAX(number_of_families) FROM table_16048129_5 WHERE average_family_size = "2.7"