Municipality · Province of Antwerp · Flanders
Kalmthout
About Kalmthout
Kalmthout is a municipality in the province of Antwerp in Flanders, Belgium. On 1 January 2026 it had 19,826 inhabitants on an area of 59.6 km², a population density of 333 inhabitants per km². That is lower than the average of 677 per km² in Antwerp and close to the Belgian average of 387 per km².
By population, Kalmthout ranks 179th of Belgium’s 565 municipalities and 30th of the 67 municipalities in Antwerp. By area it ranks 180th in Belgium.
The official language is Dutch.
Population of Kalmthout since 2016
Between 1 January 2016 and 1 January 2026 the population of Kalmthout grew by 1,490 inhabitants (+8.1%), from 18,336 to 19,826. In the last year it changed by +114.
For population growth since 2016, Kalmthout ranks 103rd of 565. Over the same period the province of Antwerp changed by +7.0% and Belgium by +5.3%.
Neighbouring municipalities
Kalmthout borders 3 municipalities:
Postcodes in Kalmthout
| Postcode | Places |
|---|---|
| 2920 | Kalmthout |
Distances from Kalmthout
| To | km | miles |
|---|---|---|
| Antwerp | 17 | 11 |
| Mechelen | 41 | 26 |
| Brussels | 59 | 37 |
| Leuven | 60 | 37 |
| Ghent | 63 | 39 |
| Hasselt | 81 | 50 |
| Bruges | 89 | 55 |
| Kortrijk | 107 | 67 |
| Namur | 108 | 67 |
| Charleroi | 109 | 68 |
| Ostend | 109 | 68 |
| Mons | 111 | 69 |
| Liège | 116 | 72 |
| Arlon | 213 | 133 |
Straight line between the centres of the municipalities. By road it is usually 20–40% further. Calculate another distance →
Nearby municipalities
More about Kalmthout: Wikipedia.