Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
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?
### Answer:
SELECT us_state_district FROM table_name_51 WHERE charter_date = "april 17, 2011"