It is a 1st class municipality in the province of Pampanga, Philippines.

 According to the latest census, it has a population of 118,312 people in 18,571 households. Mount Arayat is located within this municipality.

 

  First, Arayat was originated from the name of Fernando de Arayat, a Spanish encomiendero whose birthplace in Spain was called "Arayat". Over time, a particular reasercher claims that the natives had transformed the word to "Daya".

 

    Second that the original vernacular name "Dayat" was derived from "dayatan" which literally means dry season rice crop.

 

    Third, that Arayat was formerly known as "Alaya" or "east". Thus, bunduk alaya" or "eastern mountain" referred to Mt. Arayat. Likewise, this same source considers the word "Arayat" to be of Spanish coinage.

 

    Fourth, that a contemporary researcher believes that Mt. Arayat and the biblical Mt. Ararat, where Noah's Ark landed are one of the same thing which the town was named. This does not account for the etymological background of the present name and does not explain why another Mt. Ararat exists in the Middle East. 

 

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Source:

Wikipedia.org