CREATE TABLE table_23822 ("Barangay" TEXT, "District" TEXT, "Population  ( May 1 ,  2000 ) " FLOAT, "Population  ( August 1 ,  2007 ) " FLOAT, "Population  ( May 1 ,  2010 ) " TEXT)

Name the total number of district for population may being 478
SELECT COUNT("District") FROM table_23822 WHERE "Population (May 1, 2010)" = '478'
SELECT COUNT("District") FROM "table_23822" WHERE "Population (May 1, 2010)" = '478'