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_18483171_1 (founded VARCHAR, location VARCHAR)
### Question:
List the total number of institutions founded in Rock Island, Illinois.
### Answer:
SELECT COUNT(founded) FROM table_18483171_1 WHERE location = "Rock Island, Illinois"