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_51 (us_state_district VARCHAR, charter_date VARCHAR)

### Question ###
What state or district has a charter date of april 17, 2011?

### Accurate SQL ###

SELECT us_state_district FROM table_name_51 WHERE charter_date = "april 17, 2011"