Municipality Population Data
Province of Ilocos Sur

Municipality Water District Population 1990 Population 1995 Population 2000 Population 2010 Population 2015 Households 1990 Households 1995 Households 2000 Household Size 2000
Alilem 5,314 5,533 6,353 6,640 6,695 964 1,033 1,168 5.44
Banayoyo 5,864 6,140 6,728 7,694 7,748 1,069 1,179 1,364 4.93
Bantay Metro Vigan 26,024 28,128 30,519 34,323 35,731 4,870 5,497 6,107 5.00
Burgos 9,601 10,101 11,175 11,679 12,224 1,842 2,036 2,174 5.14
Cabugao 27,997 28,567 31,459 35,706 37,501 5,345 5,780 6,268 5.02
Candon City Candon City 43,473 45,128 50,564 57,884 60,623 8,172 9,113 10,257 4.93
Caoayan Metro Vigan 15,637 14,833 17,199 18,551 19,861 3,072 3,048 3,533 4.87
Cervantes Cervantes 12,476 13,777 14,195 16,573 17,211 2,282 2,431 2,673 5.31
Galimuyod Candon City 7,941 8,477 8,879 10,011 10,748 1,465 1,570 1,792 4.95
Gregorio Del Pilar (Concepcion) 3,417 3,940 4,134 4,219 4,875 627 713 811 5.10
Lidlidda 3,515 3,700 4,022 4,398 4,647 674 726 785 5.12
Magsingal Magsingal 22,271 23,565 25,580 28,302 30,792 4,291 4,761 5,311 4.82
Nagbukel 3,806 4,124 4,671 4,938 5,259 740 823 910 5.13
Narvacan Narvacan 35,153 35,489 38,435 42,803 44,006 6,862 7,338 7,803 4.93
Quirino (Angaki) 6,623 7,295 7,130 8,535 8,573 1,251 1,271 1,348 5.29
Salcedo (Baugen) Candon City 9,397 10,116 10,409 10,935 11,288 1,862 2,046 2,111 4.93
San Emilio 5,649 6,173 7,427 7,407 1,043 1,142
San Esteban 6,327 6,508 7,174 8,072 8,349 1,277 1,361 1,482 4.84
San Ildefonso 4,528 5,232 5,584 7,075 7,787 850 993 1,127 4.95
San Juan (Lapog) 20,328 21,222 23,146 25,199 26,411 4,001 4,346 4,866 4.76
San Vicente Metro Vigan 9,989 9,848 10,877 11,720 12,758 1,966 2,112 2,248 4.84
Santa Santa 12,570 12,801 13,918 15,106 15,340 2,431 2,635 2,811 4.95
Santa Catalina Metro Vigan 11,388 11,228 12,537 13,597 13,945 2,093 2,143 2,404 5.22
Santa Maria Sta. Maria 23,821 24,580 26,396 28,597 30,321 4,644 5,007 5,414 4.88
Santiago 14,427 14,843 15,876 17,958 18,759 2,650 2,917 3,233 4.91
Santo Domingo Sto. Domingo 20,720 22,727 24,520 27,596 27,975 3,958 4,398 4,871 5.03
Sigay 1,964 2,235 2,375 2,419 2,737 340 377 408 5.82
Sinait Sinait 21,779 22,608 24,070 25,427 25,640 4,497 4,837 5,131 4.69
Sta Cruz Sta. Cruz 28,764 30,145 34,433 37,911 39,868 5,344 5,946 6,727 5.12
Sta Lucia Sta. Lucia 20,504 20,341 22,363 24,981 25,402 3,751 4,090 4,512 4.96
Sugpon 2,844 3,381 3,513 3,820 4,585 524 609 632 5.56
Suyo 7,950 8,870 9,685 10,622 11,446 1,480 1,643 1,859 5.21
Tagudin Tagudin 29,295 30,697 34,427 38,122 39,277 5,268 5,899 6,603 5.21
Vigan City (Capital) Metro Vigan 38,574 42,067 45,143 49,747 53,879 7,239 8,338 9,193 4.91