[4] It previously included the municipalities of Bautista, Alcala, Santo Tomas, Rosales, Paniqui, Gerona and Camiling.

[8] Benaldo Gutierrez and Honorato Carungay claim Bayambang was founded in the early 16th century by an Aeta named Agalet.

In November 1899 Emilio Aguinaldo designated Bayambang as the Pangasinan capital during the Japanese Regime and the seat of the short-lived Philippine Republic.

Dr. Diaz became Governor under the Japanese Imperial Government and held Office in Bayambang at the Eulogio Dauz residence (junction of Quezon Blvd.

He was succeeded by Alvino Garcia, Mateo Mananzan, Gavino de Guzman, Marciano Fajardo, Agustin Carungay, Emeterio Camacho and Enrique M. Roldan.

The Mayors were Gerundio Umengan, Leopoldo Aquino Sr., Ambrosio Gloria (appointed by the PCAU of the Army), Bernardo Lagoy, Leopoldo Aquino Sr. (reelected), Eligio C. Sagun (1952–1955), Don Numeriano Castro (appointed), Salvador F. Quinto (1956–1959), Miguel C. Matabang (1960–1963), Jaime P. Junio (1964–1986), Feliciano Casingal Jr. (OIC), Don Daniel Bato (OIC), Domingo Tagulao, Calixto B. Camacho, Leocadio C. De Vera Jr and Engr.

[9] The Cojuangco's Central Azucarera de Tarlac Realty Corporation (CAT) claims ownership of 386.8-hectare estate in 12 barangays in Bayambang, including the site of the 289-hectare (710-acre) Camp Gregg Military Reservation (declared on October 13, 1903, by the US colonial government, turned over to the Philippines on March 27, 1949, and particularly to the Bureau of Lands on September 29, 1949).

The Alyansa ng mga Magbubukid sa Gitnang Luson (AMGL, Peasant Alliance in Central Luzon) opposed the Cojuancos.

Members of the Municipal Council (2022–2025): Binasuan is a colorful and lively dance from Bayambang which illustrates the balancing skills of the dancers.

On November 27, 2012, a half-million people witnessed the malangsi-fish festival including the "kalutan ed dalan" street grilling party.

It features eye care, women's healthcare, mental wellness with CT scan, 3D ultrasound, magnetic resonance imaging and cone beam computed tomography.