English: Welcome Arch of a) Pangasinan Province, b) Umingan, Pangasinan[1] Website (a first-class municipality in the province of Pangasinan[2], Philippines. According to the 2010 census, it has a population of 67,534 people. Land Area: 258.43 km² [3] Coordinates: 15°53'31"N 120°49'7"E ZIP Code: 2443) - Umingan bridge lookin' east towards Caraballo mountain range [4] Alo-o Bridge Km 176 + 705, Barangay Alo-o & Barangay San Roque, Lupao, Nueva Ecija [5] - 3rd Pangasinan District Highway Boundary Km 176 + 705 + 815. - Umingan. Umingan is located at the foot of the Caraballo Mountains[6] is a mountain range in the central part of Luzon, Philippines. It is located between Cordillera Central [7] and Sierra Madre mountain [8] ranges, at 16.1855556°N 121.1441667°E Coordinates: 16.1855556°N 121.1441667°E. This Caraballo Mountains are the location of the headwaters of the Cagayan River.[9] 16° 7' 13.32" N 120° 55' 42.87" E.