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_261222_1 (city___municipality VARCHAR, area__km_2__ VARCHAR)
### Question:
How many city/municipalties have an area (km2) of 506.64?
### Answer:
SELECT COUNT(city___municipality) FROM table_261222_1 WHERE area__km_2__ = "506.64"