Municipality · Province of Luxembourg · Wallonia

Arlon

Dutch Aarlen

AubangeRouvroyMessancyMussonSaint-LégerVirtonMeix-devant-VirtonÉtalleMartelangeAttertLégliseHabayArlonChinyTintignyNeufchâteauHabayMessancyÉtalleAttertSaint-LégerArlon
Arlon (highlighted) and its 5 neighbouring municipalities. Click any area to open it.

About Arlon

Arlon is a municipality in the province of Luxembourg in Wallonia, Belgium. On 1 January 2026 it had 31,440 inhabitants on an area of 118.9 km², a population density of 264 inhabitants per km². That is higher than the average of 66 per km² in Luxembourg and lower than the Belgian average of 387 per km².

By population, Arlon ranks 83rd of Belgium’s 565 municipalities and 1st of the 43 municipalities in Luxembourg. By area it ranks 46th in Belgium. Arlon is the capital of Luxembourg.

The official language is French.

Population of Arlon since 2016

1 January 2016: 29,274201629,2741 January 2017: 29,58520171 January 2018: 29,73320181 January 2019: 29,85820191 January 2020: 30,08120201 January 2021: 30,39320211 January 2022: 30,81820221 January 2023: 31,22220231 January 2024: 31,31020241 January 2025: 31,49220251 January 2026: 31,440202631,440
Population on 1 January, 2016–2026. The bars start above zero to make the change visible. Source: Statbel.

Between 1 January 2016 and 1 January 2026 the population of Arlon grew by 2,166 inhabitants (+7.4%), from 29,274 to 31,440. In the last year it changed by −52. The highest figure in this period was in 2025.

For population growth since 2016, Arlon ranks 138th of 565. Over the same period the province of Luxembourg changed by +5.7% and Belgium by +5.3%.

Neighbouring municipalities

Arlon borders 5 municipalities:

Postcodes in Arlon

PostcodePlaces
6700
6704Between 5 and 7 rue de la Gaichel, the postal code boundary does not follow the admin level 9 boundary.
6706Near Sesselich, Weyler and Arlon, the postal code boundary does not follow the admin level 9 boundaries.

Distances from Arlon

Tokmmiles
Liège10767
Namur10968
Charleroi12879
Hasselt14288
Leuven15596
Mons15697
Brussels167104
Mechelen178111
Antwerp203126
Ghent214133
Kortrijk219136
Bruges253157
Ostend265165

Straight line between the centres of the municipalities. By road it is usually 20–40% further. Calculate another distance →

Nearby municipalities

More about Arlon: Wikipedia.