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_1686313_1 (pop_density__per_km²_ VARCHAR, barangay VARCHAR)
### Question:
Name the population density when barangay is tiptip
### Answer:
SELECT pop_density__per_km²_ FROM table_1686313_1 WHERE barangay = "Tiptip"