CREATE TABLE table_25789 ("City / Municipality" TEXT, "No. of Barangays" FLOAT, "Area  ( km\\u00b2 ) " TEXT, "Population  ( 2010 Census ) " FLOAT, "Pop. density  ( per km\\u00b2 ) " TEXT)

What is the name of the city/municipality if the population is 1,388.88?
SELECT "City / Municipality" FROM table_25789 WHERE "Pop. density (per km\u00b2)" = '1,388.88'
SELECT "City / Municipality" FROM "table_25789" WHERE "Pop. density (per km\u00b2)" = '1,388.88'