• As of 01 May 2020, the population of La Union was recorded at 822,352 persons based on the 2020 Census of Population and Housing (CPH).

• The population of La Union accounted to 15.51 percent of Ilocos Region’s total population in 2020.

• The 2020 population of the province was higher by 35.70 thousand compared with the population of 786.65 thousand in 2015; by 80.44 thousand compared with the population of 741.91 thousand in 2010; and by 164.41 thousand compared with the population of 657.95 thousand in 2000. (Table 1)

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• The total population of La Union increased by 0.94 percent annually, on the average, during the period of 2015 to 2020.   This means that, on the average, there were about 9 persons added per year for every 1,000 persons in the province’s population during the period 2015 to 2020.  By comparison, the rate at which the province’s population grew during the period of 2010 to 2015 was higher at 1.12 percent. (Table 2)

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• More than half (54.21%) of the province’s population was contributed by District 2 in 2020 with 445,823 persons.  This was higher by 69,294 persons compared with the total population of District 1 at 376,529 persons (45.79 percent of the province’s total population).   In 2015, the total population of District 1 and District 2 were recorded at 359,719 persons (45.73 percent share) and 426,934 persons (54.27 percent share), respectively. (Figure 1)

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• Among the 19 municipalities and the lone city of the province of La Union, the City of San Fernando was the most populous with a total population of 125,640 persons contributing to 15.28 percent of the total provincial population.  The municipality of Bauang, Agoo, Rosario, and Naguilian followed with 78,449 persons; 66,028 persons; 60,278 persons; and 52,189 persons, respectively. (Figure 2)

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• On the other end, the least populous municipality was Burgos with a total population of 9,006 persons or 1.10 percent of the province’s total population.  It was followed by Santol (14,166 persons), Bagulin (14,428 persons), Sudipen (17,187 persons) , and San Gabriel (18,943 persons). (Figure 3)

• Santol was the fastest growing municipality in the province with an annual population growth rate of 2.71 percent during the period of 2015 to 2020. It was followed by Burgos (2.34%), Tubao (2.13%), San Juan (1.81%), and Rosario (1.77%). (Figure 4)

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• With a total land area of approximately 1,499.28 square kilometers, the population density of La Union in 2020 was posted at 548 persons per square kilometer.  This represents an increase of 23 persons per square kilometer or 4.38 percent increase from the population density of 525 persons per square kilometer in 2015.  In 2010, there were 495 persons residing in every square kilometer of land in the province.
  (Table 3)

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• Agoo was the most densely populated municipality with 1,250 persons per square kilometer. It was followed by the City of San Fernando (1,223 persons per square kilometer), Bauang (1,072 persons per square kilometer), Bangar (1,018 persons per square kilometer), and Luna (870 persons per square kilometer). (Figure 5)

• On the other hand, the most sparsely populated municipality was Burgos with 127 persons per square kilometer.  It was followed by Bagulin (134 persons per square kilometer), San Gabriel (146 persons per square kilometer), Santol (151 persons per square kilometer), and Sudipen (176 persons per square kilometer). 

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SGD. DANITES E. TEÑIDO, Ph.D.
Chief Statistical Specialist