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_12 ( per_capita_income VARCHAR, county VARCHAR )

### Question ###
What is the per capital income for Washington county?

### Accurate SQL ###

SELECT per_capita_income FROM table_name_12 WHERE county = "washington"