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Population of Arlon

Reference date: 2026-01-01

31,440

residents

The official population of Arlon was 31,440 residents on 1 January 2026, ranking 83rd among Belgium's municipalities.

A documented local view of Arlon
Documented local viewJean-Pol GRANDMONT · CC BY-SA 2.5 · Adapted for Belgium in Maps; changes were made.
Population density
264.1residents/km²
Rank in Belgium
83rdout of 565 municipalities
Population change
-52
Reference date
2026-01-01

Official time series

Official time series: Arlon2017–2026: 29,585–31,440.31,83530,97130,10629,24229,585201729,733201829,858201930,081202030,393202130,818202231,222202331,310202431,492202531,4402026
2017-01-01 – 2026-01-01

Source: official Statbel data · Statbel

View the exact data table
Official time series
202631,440264.1
202531,492264.5
202431,310263.0
202331,222262.2
202230,818258.9
202130,393255.3
202030,081252.7
201929,858250.8
201829,733249.7
201729,585248.7
201629,274246.1
201529,016243.9
201428,759241.8
201328,520239.8
201228,289237.8
201127,985235.3
201027,763233.4
200927,466230.9

Population

Who lives here

A complete, non-overlapping view of the registered population by age, from the same reference-date record.
Age structureShare of registered residents in five non-overlapping age groups.Under 18: 19.2%18–24: 8.6%25–44: 29.8%45–64: 25.8%65 and older: 16.6%
Reference date: 2026-01-01
View the exact data table
Registered residents by age group
Under 186,02019.2%
18–242,7158.6%
25–449,36529.8%
45–648,11125.8%
65 and older5,22916.6%

Key figures

Municipalities in the same province with a similar population

Use these population patterns in Horizon Mapper for catchment and location-opportunity analysis. Horizon Mapper