Solano, officially the Municipality of Solano, is a 1st class municipality in the province of Nueva Vizcaya, Philippines. According to the 2020 ce…Solano, officially the Municipality of Solano, is a 1st class municipality in the province of Nueva Vizcaya, Philippines. According to the 2020 census, it has a population of 65,287 inhabitants.. According to the BLGF 2021 data, the town of Solano has the highest locally sourced revenue of all the municipalities in Region 2 making it one of the notable economic hubs in Cagayan Valley. This further solidified the status of Solano as the undisputed premier town of Cagayan Valley.