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_189598_7 (population_density__per_km²_ VARCHAR, name VARCHAR)
### Question:
When buffalo narrows is the name how many measurements of population density per kilometer squared are there?
### Answer:
SELECT COUNT(population_density__per_km²_) FROM table_189598_7 WHERE name = "Buffalo Narrows"