List of most populous municipalities in Belgium
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This is a list of most populous municipalities in Belgium. Out of the 565 Belgian municipalities (as of 1 January 2025) the list contains all those with a population over 30,000.

Belgium is divided into municipalities, however a municipality may or may not have an additional royally-decreed city status. For example, Brussels is a federal region of 19 municipalities, the City of Brussels being only one of them.
List
Municipalities marked with * or ** have recently (* in 2019 and ** in 2025) been the subject of a merger of two or three former municipalities, population figures for years prior to these mergers take into account the population of all the municipalities involved.
| # | Municipality | Population | Province | Region | ||||
|---|---|---|---|---|---|---|---|---|
| 1990 | 2000 | 2010 | 2020 | 2026 | ||||
| 1. | 479,974 | 456,898 | 493,630 | 540,196 | 565,615 | |||
| 2. | 230,543 | 224,180 | 243,366 | 263,927 | 274,042 | |||
| 3. | 206,779 | 200,827 | 202,598 | 202,746 | 206,900 | |||
| 4. | 136,706 | 133,859 | 157,673 | 185,103 | 198,674 | — | ||
| 5. | 196,825 | 185,639 | 192,504 | 197,217 | 198,102 | |||
| 6. | 89,231 | 87,812 | 104,647 | 120,887 | 129,600 | — | ||
| 7. | 104,768 | 105,692 | 121,232 | 132,799 | 129,278 | — | ||
| 8. | 117,460 | 116,246 | 116,741 | 118,656 | 120,458 | |||
| 9. | 103,466 | 105,419 | 108,950 | 111,432 | 115,457 | |||
| 10. | 85,193 | 88,014 | 95,463 | 102,275 | 105,357 | |||
| 11. | 68,904 | 71,219 | 88,181 | 97,979 | 98,411 | — | ||
| 12. | 91,867 | 90,935 | 91,759 | 95,887 | 97,745 | |||
| 13. | 76,245 | 76,313 | 80,043 | 87,332 | 93,094 | |||
| 14. | 73,828 | 76,068 | 81,385 | 87,151 | 90,914 | |||
| 15. | 75,622 | 75,438 | 80,940 | 86,921 | 90,355 | |||
| 16. | 73,128 | 73,174 | 80,183 | 87,632 | 89,162 | — | ||
| 17. | - | 77,334 | 80,692 | 85,047 | 88,344 | |||
| 18. | 75,402 | 74,221 | 77,589 | 83,980 | 87,548 | — | ||
| 19. | 67,979 | 68,290 | 71,806 | 78,531 | 83,400 | |||
| 20. | 76,138 | 76,568 | 78,071 | 81,138 | 81,751 | |||
| 21. | 76,081 | 74,790 | 74,911 | 77,109 | 81,523 | |||
| 22. | 68,527 | 67,279 | 69,064 | 71,647 | 73,000 | |||
| 23. | 67,767 | 67,379 | 69,043 | 69,083 | 69,066 | |||
| 24. | 61,343 | 62,842 | 64,757 | 66,447 | 68,101 | |||
| 25. | 52,512 | 54,199 | 57,432 | 63,478 | 67,697 | |||
| 26. | 60,952 | 60,557 | 62,698 | 64,192 | 64,764 | |||
| 27. | 48,141 | 46,528 | 50,749 | 57,712 | 60,979 | — | ||
| 28. | 53,545 | 52,492 | 54,651 | 58,767 | 60,410 | |||
| 29. | 47,178 | 45,555 | 50,258 | 56,581 | 58,904 | — | ||
| 30. | 53,657 | 53,148 | 55,253 | 55,290 | 56,182 | |||
| 31. | 38,769 | 39,749 | 46,818 | 52,728 | 54,330 | — | ||
| 32. | 40,424 | 42,211 | 45,186 | 48,614 | 50,897 | |||
| 33. | 39,641 | 39,404 | 44,352 | 48,473 | 49,638 | — | ||
| 34. | 36,289 | 39,261 | 42,758 | 46,598 | 49,034 | |||
| 35. | 43,579 | 42,458 | 46,981 | 49,678 | 48,967 | — | ||
| 36. | 37,669 | 38,596 | 40,763 | 45,280 | 48,490 | |||
| 37. | 32,942 | 34,982 | 39,628 | 45,495 | 48,413 | |||
| 38. | 42,470 | 43,137 | 44,095 | 45,870 | 47,828 | |||
| 39. | 36,242 | 38,552 | 41,083 | 43,580 | 46,380 | |||
| 40. | 29,685 | 31,348 | 35,803 | 42,656 | 45,984 | — | ||
| 41. | 36,647 | 37,722 | 39,998 | 43,423 | 45,111 | |||
| 42. | 35,238 | 37,233 | 39,866 | 42,950 | 44,991 | |||
| 43. | 39,539 | 39,839 | 40,372 | 42,152 | 44,239 | |||
| 44. | 35,652 | 38,468 | 40,398 | 42,207 | 43,228 | |||
| 45. | 32,574 | 33,655 | 36,000 | 40,182 | 43,131 | |||
| 46. | 32,367 | 33,677 | 36,990 | 40,709 | 42,650 | |||
| 47. | 38,396 | 37,922 | 39,077 | 42,119 | 42,566 | — | ||
| 48. | 37,027 | 37,147 | 39,309 | 40,672 | 41,987 | |||
| 49. | 36,356 | 36,292 | 38,219 | 40,190 | 40,909 | |||
| 50. | 33,318 | 34,559 | 36,675 | 39,251 | 40,879 | |||
| 51. | 31,989 | 35,259 | 38,303 | 40,170 | 40,815 | |||
| 53. | 34,555 | 35,839 | 36,306 | 38,350 | 40,737 | |||
| 52. | 33,833 | 35,430 | 36,937 | 38,933 | 40,653 | |||
| 54. | 31,944 | 32,930 | 35,169 | 37,972 | 40,491 | |||
| 55. | 30,270 | 31,683 | 34,114 | 37,022 | 38,793 | |||
| 56. | 30,918 | 32,191 | 33,930 | 36,646 | 38,747 | |||
| 57. | 34,540 | 37,138 | 36,949 | 38,223 | 38,529 | |||
| 58. | Merelbeke-Melle** | 30,088 | 32,135 | 33,891 | 36,567 | 37,675 | ||
| 59. | 25,856 | 26,901 | 30,446 | 34,782 | 37,518 | |||
| 60. | 29,407 | 31,155 | 33,112 | 35,628 | 37,371 | |||
| 61. | 28,697 | 30,013 | 31,572 | 34,621 | 37,055 | |||
| 62. | 31,669 | 31,479 | 32,552 | 35,293 | 36,962 | |||
| 63. | 27,047 | 27,931 | 30,228 | 33,505 | 36,018 | |||
| 64. | 36,656 | 35,452 | 36,050 | 35,668 | 35,975 | |||
| 65. | 28,126 | 31,033 | 32,910 | 34,748 | 35,735 | |||
| 66. | 29,143 | 28,804 | 30,811 | 34,404 | 35,659 | — | ||
| 67. | 35,231 | 35,071 | 34,962 | 34,995 | 35,629 | |||
| 69. | 27,427 | 30,433 | 32,917 | 34,245 | 35,451 | |||
| 68. | 30,219 | 30,945 | 32,033 | 33,649 | 35,338 | |||
| 70. | 28,589 | 30,105 | 31,526 | 33,892 | 35,032 | |||
| 71. | 31,037 | 32,733 | 33,342 | 34,316 | 34,849 | |||
| 72. | 25,439 | 27,911 | 30,502 | 33,076 | 34,698 | |||
| 73. | 32,726 | 32,028 | 32,530 | 33,540 | 34,640 | |||
| 74. | 32,828 | 32,190 | 32,749 | 33,448 | 33,841 | |||
| 75. | 27,055 | 27,788 | 29,702 | 31,612 | 33,105 | |||
| 76. | 31,541 | 33,148 | 33,825 | 33,089 | 32,163 | |||
| 77. | 30,462 | 31,374 | 30,975 | 31,579 | 32,089 | |||
| 78. | Tielt** | 30,051 | 30,263 | 30,706 | 31,436 | 31,973 | ||
| 79. | 26,179 | 27,495 | 28,405 | 30,183 | 31,948 | |||
| 80. | 22,194 | 27,380 | 30,721 | 31,316 | 31,823 | |||
| 81. | 23,844 | 25,533 | 28,147 | 30,196 | 31,814 | |||
| 82. | 29,336 | 29,706 | 30,218 | 31,179 | 31,673 | |||
| 83. | 23,325 | 24,791 | 27,763 | 30,081 | 31,440 | |||
| 84. | Lochristi** | 24,107 | 25,716 | 28,454 | 30,419 | 30,982 | ||
| 85. | 27,062 | 29,215 | 30,126 | 30,550 | 30,879 | |||
| 86. | Tessenderlo-Ham** | 22,992 | 25,145 | 27,920 | 29,704 | 30,827 | ||
| 87. | 20,172 | 25,091 | 27,597 | 29,454 | 30,755 | |||
| 88. | 25,733 | 26,320 | 26,577 | 29,502 | 30,605 | |||
| 89. | 27,424 | 28,986 | 29,598 | 30,376 | 30,386 | |||
| 90. | 23,849 | 25,430 | 28,026 | 29,494 | 30,235 | |||