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Population of Watermael-Boitsfort

Reference date: 2026-01-01

25,271

residents

The official population of Watermael-Boitsfort was 25,271 residents on 1 January 2026, ranking 122nd among Belgium's municipalities.

Charle-Albert Castle, a documented local view of Watermael-Boitsfort
Charle-Albert CastleLéonie Locatelli · CC BY-SA 4.0 · Adapted for Belgium in Maps; changes were made.
Population density
1,948.7residents/km²
Rank in Belgium
122ndout of 565 municipalities
Population change
-56
Reference date
2026-01-01

Official time series

Official time series: Watermael-Boitsfort2017–2026: 24,871–25,271.25,48625,25025,01324,77724,871201725,012201825,184201925,332202025,221202125,187202225,392202325,295202425,327202525,2712026
2017-01-01 – 2026-01-01

Source: official Statbel data · Statbel

View the exact data table
Official time series
202625,2711,948.7
202525,3271,953.0
202425,2951,950.6
202325,3921,958.1
202225,1871,942.2
202125,2211,944.9
202025,3321,952.1
201925,1841,940.7
201825,0121,927.4
201724,8711,915.5
201624,6191,896.1
201524,4541,883.4
201424,4081,879.9
201324,4671,884.4
201224,3031,871.8
201124,2471,867.5
201024,2601,868.5
200924,1661,861.2

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: 18.8%18–24: 9.2%25–44: 24.3%45–64: 26.6%65 and older: 21.2%
Reference date: 2026-01-01
View the exact data table
Registered residents by age group
Under 184,75418.8%
18–242,3179.2%
25–446,13324.3%
45–646,71126.6%
65 and older5,35621.2%

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