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_name_28 (population INTEGER, municipality VARCHAR)
### Question:
What is the highest population within the municipality of Porsgrunn?
### Answer:
SELECT MAX(population) FROM table_name_28 WHERE municipality = "porsgrunn"