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_216776_2 (municipal_mayor VARCHAR, area__km²_ VARCHAR)
### Question:
How many different municipal mayors were there in the municipality with an area of 42.66 km2?
### Answer:
SELECT COUNT(municipal_mayor) FROM table_216776_2 WHERE area__km²_ = "42.66"