human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Official Name, Status, Area km 2, Population, Census Ranking
###Question: What is the Area of the Saint-Isidore Parish with a Population smaller than 4,268?
gpt
SELECT SUM Area km 2 FROM table WHERE Population < 4,268 AND Official Name = saint-isidore