Living in Waasmunster

Waasmunster is a commune in the province of East Flanders, Flemish Region. Administrative language: Dutch. Below are the local figures that change what you pay and who your neighbours are, each with its official source.

Population on 2026-01-01
11,531
National Register (IBZ), retrieved 2026-11-02
Residents with a foreign nationality
6.4% (736 people)
Lower than most communes in the Flemish Region (regional average 8.7%). Statbel, 2026-01-01.
Commune income tax surcharge 2026
7.40%
On every €1,000 of federal income tax you owe, the commune adds €74.00. Rank 23 of 55 in East Flanders (1 = lowest); Flemish Region average 7.22%. Source, retrieved 2026-11-02.
Property tax: commune centimes 2026
913
Added to the regional property tax (précompte immobilier / onroerende voorheffing) paid by owners. Rank 29 of 55 in East Flanders (1 = lowest). Source.
Postal codes
9250
REFNIS (INS/NIS) code 42023. bpost list.

What these numbers mean for you

The commune surcharge is not taken from your payslip separately: your employer withholds tax at a flat rate, and the real commune percentage is applied when your yearly tax assessment is calculated. That is why two colleagues with the same salary can get different refunds or bills if they live in different communes. Use our salary calculator for the monthly figure.

Property tax centimes only concern owners. The higher the number, the more the commune adds to the regional base tax on the cadastral income of the property.

Registering in Waasmunster

When you move here you must register your address at the commune's population office (service population / dienst bevolking) shortly after you move in (your commune states the deadline); a police officer then checks that you actually live at the address. See our commune registration guides for the documents to bring.

Nearby communes

Berlare, Buggenhout, Dendermonde (Termonde), Hamme (Hamme (Vl.)), Laarne, Lebbeke, Wetteren, Wichelen, Zele.