Piddig, officially the Municipality of Piddig (Ilocano: Ili ti Piddig; Filipino: Bayan ng Piddig) is a municipality in the province of Ilocos Norte, Philippines. According to the 2020 census, it has a population of 22,475 people.

The town is known for its role in the Basi Revolt, led by Pedro Mateo, a native of Piddig. Today, Piddig is known for its basi and for their sariwagwag, a dish made out of gabi leaves with fresh shrimps that are freshly gathered from their rich river. The municipio (town hall) is located on top of a hill offering panoramic views of fields and mountains.

Piddig is the birthplace of Teófilo Yldefonso, a Filipino swimmer who is the first Filipino and Southeast Asian to win an Olympic medal, and the first Filipino to win multiple medals.

Piddig's terrain is hilly with rice plains interspersed in between. It sits at a higher elevation than most of the towns in Ilocos Norte. It is a great place for a day hike, if one does not mind traversing through rivers, forests, and fields.

Piddig is 18 kilometres (11 mi) from Laoag and 505 kilometres (314 mi) from Manila.

Piddig is politically subdivided into 23 barangays.  Each barangay consists of puroks and some have sitios.

Population census of Piddig

Year Pop. ±% p.a. 1903 9,172 —     1918 11,301 +1.40% 1939 10,511 −0.34% 1948 10,496 −0.02% 1960 11,614 +0.85% 1970 13,065 +1.18% 1975 13,933 +1.30% 1980 14,774 +1.18%	Year Pop. ±% p.a. 1990 17,078 +1.46% 1995 17,797 +0.78% 2000 19,059 +1.48% 2007 20,034 +0.69% 2010 20,606 +1.03% 2015 21,497 +0.81% 2020 22,475 +0.88%
Source: Philippine Statistics Authority

In the 2020 census, the population of Piddig was 22,475 people, with a density of 100 inhabitants per square kilometre or 260 inhabitants per square mile.

Poverty incidence of Piddig

5 10 15 20 25 30 2006 20.60 2009 16.29 2012 13.56 2015 11.37 2018 5.59 2021 7.75 Source: Philippine Statistics Authority

Piddig, belonging to the first congressional district of the province of Ilocos Norte, is governed by a mayor designated as its local chief executive and by a municipal council as its legislative body in accordance with the Local Government Code. The mayor, vice mayor, and the councilors are elected directly by the people through an election which is being held every three years.

Members of the Municipal Council
(2019–2022)

Position	Name
Congressman	Sandro Marcos
Mayor	Georgina Salazar Guillen
Vice-Mayor	Edwin E. Salazar
Councilors	Zaida Hershey S. Mandac
	Dexter M. Yapo
	Wilbor A. Bringas
	Lendell Benedict M. Chua
	Nenita T. Alejandro
	Marianito P. Foronda
	Rey M. Nicolas
	Romulo E. Hilario

Cultural Property wmph identifier	Site name	Description	Province	City or municipality	Address	Coordinates	Image
	Don Claro Caluya Monument		Ilocos Norte	Piddig	Estella Street	18°09′58″N 120°42′56″E / 18.166165°N 120.715461°E / 18.166165; 120.715461 (Don Claro Caluya Monument)
	Rizal Monument		Ilocos Norte	Piddig	Piddig Municipal Grounds, Estella Street	18°09′59″N 120°42′54″E / 18.166350°N 120.714976°E / 18.166350; 120.714976 (Rizal Monument)
	Raquiza House		Ilocos Norte	Piddig	Barangay Cabaroan	18°10′01″N 120°42′55″E / 18.166878°N 120.715381°E / 18.166878; 120.715381 (Raquiza House)	Upload Photo
	Teodoro Pacairo House		Ilocos Norte	Piddig	#004 Barangay Cabaroan	18°10′00″N 120°42′56″E / 18.166677°N 120.715575°E / 18.166677; 120.715575 (Teodoro Pacairo House)	Upload Photo
	Santa Ana Church		Ilocos Norte	Piddig	Poblacion	18°09′58″N 120°43′00″E / 18.166240°N 120.716648°E / 18.166240; 120.716648 (Santa Ana Church)
	Bell tower of Santa Ana Church		Ilocos Norte	Piddig	Poblacion	18°09′58″N 120°42′59″E / 18.166144°N 120.716395°E / 18.166144; 120.716395 (Bell tower of Santa Ana Church)
	Saint Anne Academy		Ilocos Norte	Piddig	Poblacion	18°09′57″N 120°43′01″E / 18.165898°N 120.716915°E / 18.165898; 120.716915 (Saint Anne Academy)
	Basi Revolt Monument		Ilocos Norte	Piddig	Poblacion	18°09′50″N 120°42′52″E / 18.163759°N 120.714569°E / 18.163759; 120.714569 (Basi Revolt Monument)

Almost each barrio or barangay in Piddig has its own elementary school. The town's poblacion Anao, historically had two, Piddig Central (North) and South Piddig Central elementary schools. Both schools are situated next to each other north of town. The schools' rivalry is legendary. In the late 1980s the schools merged as one, Piddig Central.

Another one is Ab-abut Elementary School whichs original name is Ab-abut-Sucsuquen Elementary School which was later changed because it would be too long for the gate they will be installing.

There are three high schools in Piddig: Piddig National High School, Roosevelt High School, and St. Anne Academy (Catholic). However, many students attend high schools in nearby Laoag City.

• Piddig Unofficial Homepage
• Philippine Standard Geographic Code
• Philippine Census Information
• Local Governance Performance Management System Archived May 2, 2012, at the Wayback Machine