The city superintendent of schools shall direct the taking of the quadrennial census provided for in this title. He shall cause the census to be retaken in whole or in part when directed to do so by the State Superintendent of Education. The city superintendent of schools shall require the enumerators to make their report to him not later than August 5, following the date of taking the census; and, on or before August 15 following, the city superintendent of schools shall make his report of such census to the county superintendent of education. Where the census of a city is retaken in whole or in part by direction of the State Superintendent of Education, the enumerators shall make their report to the city superintendent of schools within such time as directed by the State Superintendent of Education, and the city superintendent of schools shall make a report to the county superintendent of education within 24 hours from the time of the report to him by the enumerators. He shall retain a duplicate of the same for the files in his own office.