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_2252745_1 (pop__km² VARCHAR, administrative_centre VARCHAR)
### Question:
when administrative centre is egilsstaðir, what is the pop./ km²?
### Answer:
SELECT COUNT(pop__km²) FROM table_2252745_1 WHERE administrative_centre = "Egilsstaðir"