How many places have an area of 409.41 (km2)?
CREATE TABLE "bukidnon" (
  "city_municipality" text,
  "date_of_creation" text,
  "area_km_2" text,
  "population_2010" real,
  "income_classification_dof" text
);
SELECT COUNT("population_2010") FROM "bukidnon" WHERE "area_km_2"='409.41';