Cauayan, Isabela

Not to be confused with Cauayan.

Cauayan
Component city
City of Cauayan
Rizal Street in Cauayan Poblacion
Flag Seal
Etymology: Bamboo
Nicknames:  Mushroom City of the North Ideal City of the North The First Smarter City in the Philippines
Motto:  Oh, Cauayan
Map of Isabela with Cauayan highlighted
Interactive map of Cauayan
Cauayan Location within the Philippines
Coordinates: 16°46′N 121°47′E
Country	Philippines
Region	Cagayan Valley
Province	Isabela
District	6th district
Founded	1740
Cityhood	March 30, 2001
Barangays	65 (see Barangays)
Government
• Type	Sangguniang Panlungsod
• Mayor	Caesar Dy Jr.
• Vice Mayor	Leoncio Dalin Jr.
• Representative	Faustino Dy III
• City Council	Members Cynthia Q. Uy Garry G. Galutera Edgar M. de Luna Edgardo A. Atienza Jr. Telesforo R. Mallillin Reynaldo Q. Uy Paul Vincent R. Mauricio Bagnos R. Maximo Jr. Danilo B. Asirit Rufino C. Arcega
• Electorate	93,785 voters (2025)
Area
• Total	336.40 km2 (129.88 sq mi)
Elevation	65 m (213 ft)
Highest elevation	148 m (486 ft)
Lowest elevation	32 m (105 ft)
Population  (2024 census)
• Total	143,539
• Density	426.69/km2 (1,105.1/sq mi)
• Households	36,399
Economy
• Income class	2nd city income class
• Poverty incidence	11.71 % (2023)
• Revenue	₱ 1,512 million (2024)
• Assets	₱ 3,634 million (2024)
• Expenditure	₱ 1,534 million (2024)
• Liabilities	₱ 2,364 million (2024)
Service provider
• Electricity	Isabela 1 Electric Cooperative (ISELCO 1)
Time zone	UTC+8 (PST)
ZIP code	3305
PSGC	023108000
IDD : area code	+63 (0)78
Native languages	Ilocano Gaddang Tagalog
Website	cityofcauayan.gov.ph

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Cauayan, officially the City of Cauayan (Ibanag: Siyudad nat Cauayan; Gaddang: Siyudad na Cauayan; Ilocano: Siudad ti Cauayan; Filipino: Lungsod ng Cauayan), is a component city in the province of Isabela, Philippines. According to the 2024 census, it has a population of 143,539 people.