The name of the barangay came from a folklore of which a little girl whose name is "Lingap" living in a barrio. Later on, Spaniards arrived to conquer the barrio and people started to left. When Lingap's family is trying to leave, they forgot the pillow with jewelries inside of it. They were spotted by Spaniards. Lingap's dad shouted, "Lingap, ang unan!" The Spaniards misheard it as "lingunan" and ask them in Spanish, but they didn't understand the Spaniards and are afraid of them so they left. The conquered barrio is now named by Spaniards as "Lingunan".[4]
The Köppen-Geiger climate classification of Lingunan is Tropical Monsoon (Am) which has less pronounce dry seasons or extraordinary rainy wet seasons and pronounce dry seasons.[citation needed]
^PIO, Administrator, Team. "Punong Barangay Directory". City Government of Valenzuela. Retrieved 2024-03-10.{{cite web}}: CS1 maint: multiple names: authors list (link)
^ abPIO, Administrator, Team. "Lingunan". City Government of Valenzuela. Retrieved 2024-03-28.{{cite web}}: CS1 maint: multiple names: authors list (link)
^PIO, Administrator, Team. "Valenzuela City". City Government of Valenzuela. Retrieved 2024-04-23.{{cite web}}: CS1 maint: multiple names: authors list (link)