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_name_91 ( area__km_2__ INTEGER, code VARCHAR, region VARCHAR )

### Question ###
What is the average area larger than Code 19025 but a smaller region than 12?

### Accurate SQL ###

SELECT AVG(area__km_2__) FROM table_name_91 WHERE code > 19025 AND region < 12