Municipality · Province of Flemish Brabant · Flanders
Tienen
French Tirlemont
About Tienen
Tienen is a municipality in the province of Flemish Brabant in Flanders, Belgium. On 1 January 2026 it had 36,962 inhabitants on an area of 72.9 km², a population density of 507 inhabitants per km². That is close to the average of 571 per km² in Flemish Brabant and higher than the Belgian average of 387 per km².
By population, Tienen ranks 62nd of Belgium’s 565 municipalities and 8th of the 63 municipalities in Flemish Brabant. By area it ranks 141st in Belgium.
The official language is Dutch.
Population of Tienen since 2016
Between 1 January 2016 and 1 January 2026 the population of Tienen grew by 2,777 inhabitants (+8.1%), from 34,185 to 36,962. In the last year it changed by +72.
For population growth since 2016, Tienen ranks 105th of 565. Over the same period the province of Flemish Brabant changed by +7.9% and Belgium by +5.3%.
Neighbouring municipalities
Tienen borders 8 municipalities:
Postcodes in Tienen
| Postcode | Places |
|---|---|
| 3300 | Tienen, Bost, Goetsenhoven, Hakendover, Kumtich, Oorbeek, Oplinter, Sint-Margriete-Houtem, Vissenaken |
Distances from Tienen
| To | km | miles |
|---|---|---|
| Leuven | 18 | 11 |
| Hasselt | 30 | 18 |
| Namur | 39 | 24 |
| Brussels | 40 | 25 |
| Mechelen | 42 | 26 |
| Liège | 50 | 31 |
| Charleroi | 56 | 35 |
| Antwerp | 64 | 40 |
| Mons | 79 | 49 |
| Ghent | 90 | 56 |
| Kortrijk | 118 | 73 |
| Bruges | 130 | 81 |
| Arlon | 140 | 87 |
| Ostend | 148 | 92 |
Straight line between the centres of the municipalities. By road it is usually 20–40% further. Calculate another distance →
Nearby municipalities
More about Tienen: Wikipedia.