| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Brussels | 2,150,320 | 0.41% |
| Antwerp | 1,068,660 | 0.36% |
| Liege | 690,769 | 0.32% |
| Gent | 480,931 | 0.4% |
| Charleroi | 420,510 | 0.3% |
| Namur | 111,432 | 1% |
| Leuven | 102,275 | 1.01% |
| Mons | 95,887 | 1% |
| Aalst | 87,332 | 1.01% |
| Mechelen | 86,921 | 1.01% |
| La Louviere | 81,138 | 1% |
| Hasselt | 78,714 | 1.01% |
| Sint-Niklaas | 78,531 | 1.01% |
| Kortrijk | 77,109 | 1% |
| Ostend | 71,647 | 1% |
| Tournai | 69,083 | 1% |
| Genk | 66,447 | 1% |
| Seraing | 64,192 | 1% |
| Roeselare | 63,478 | 1.01% |
| Mouscron | 58,767 | 1.01% |
| Verviers | 55,290 | 1% |
| Beveren | 49,047 | 1.01% |
| Beringen | 46,598 | 1.01% |
| Dendermonde | 45,870 | 1% |
| Vilvoorde | 45,495 | 1.01% |
| Turnhout | 45,280 | 1.01% |
| Deinze | 43,580 | 1.01% |
| Dilbeek | 43,423 | 1.01% |
| Heist-op-den-Berg | 42,950 | 1.01% |
| Lokeren | 42,044 | 1.01% |
| Geel | 40,709 | 1.01% |
| Sint-Truiden | 40,672 | 1% |
| Herstal | 40,190 | 1% |
| Halle | 40,182 | 1.01% |
| Braine-l'Alleud | 40,170 | 1% |
| Ninove | 39,251 | 1.01% |
| Maasmechelen | 38,933 | 1.01% |
| Waregem | 38,350 | 1.01% |
| Brasschaat | 38,223 | 1% |
| Grimbergen | 37,972 | 1.01% |
| Mol | 37,022 | 1.01% |
| Lier | 36,646 | 1.01% |
| Evergem | 35,628 | 1.01% |
| Tienen | 35,293 | 1.01% |
| Zaventem | 34,782 | 1.01% |
| Wavre | 34,748 | 1.01% |
| Sint-Pieters-Leeuw | 34,621 | 1.01% |
| Schoten | 34,316 | 1% |
| Lommel | 34,245 | 1% |
| Geraardsbergen | 33,649 | 1% |
| Menen | 33,540 | 1% |
| Asse | 33,505 | 1.01% |
| Binche | 33,448 | 1% |
| Knokke-Heist | 33,089 | 1% |
| Bilzen | 32,477 | 1% |
| Oudenaarde | 31,612 | 1.01% |
| Wevelgem | 31,579 | 1% |
| Courcelles | 31,179 | 1% |
| Tongeren | 31,142 | 1% |
| Waterloo | 30,376 | 1.01% |
| Temse | 30,196 | 1.01% |
| Arlon | 30,081 | 1.01% |
