Ilaya is one of the interior barangays in the Dapitan City, in the province of Zamboanga del Norte. It is located 15.8 km south from Dapitan City proper along Dapitan river. It has a land area of 1,839.75 hectares and a population of 2,873 people as of 2020. The vicinity of Ilaya is situated at 8.54° North latitude, 123.43° East longitude and 20 meters elevation above the sea level. It shares a common border with other barangays of Dapitan namely, Hilltop (north), Barcelona (south), Ba-ao (east) and Burgos (northwest). It also shares border with the municipality of Polanco in the west.