Liège

Living in Plombières

Plombières is a commune in the province of Liège, Walloon Region. Administrative language: French (German in the German-speaking communes). Below are the local figures that change what you pay and who your neighbours are, each with its official source.

Map of Belgian communes coloured by their 2026 commune income tax surcharge
Commune income tax surcharge 2026under 6.5%6.5 to 7.2%7.2 to 7.8%7.8 to 8.2%8.2 to 8.6%8.6% and moreBoundaries © NGI-IGN, AdminVector, CC BY 4.0.
Population on 2026-01-01
10,695
National Register (IBZ), retrieved 2026-11-02
Residents with a foreign nationality
19.8% (2,122 people)
Higher than 96% of communes in the Walloon Region (regional average 7.8%). Statbel, 2026-01-01.
Commune income tax surcharge 2026
7.30%
On every €1,000 of federal income tax you owe, the commune adds €73.00. Rank 13 of 84 in Liège (1 = lowest); Walloon Region average 7.98%. Source, retrieved 2026-11-02.
Postal codes
4850, 4851, 4852
REFNIS (INS/NIS) code 63088. 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.

Registering in Plombières

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

Amblève (Amel), Aubel, Baelen, Bullange (Büllingen), Butgenbach (Bütgenbach), Dison, Eupen, Herve, Jalhay, La Calamine (Kelmis), Lierneux, Limbourg (Limburg).