Municipality · Verviers · LiègeCoat of arms of LontzenFlag of Lontzen

Lontzen: population and statistics

Lontzen has a population of 6,080 (2026) across 28.7 km², or 212 people per km². It ranks 457 of 565 municipalities by population. Its population is growing: +7.5% between 2016 and 2026.

  • 6,080 residents
  • 28.7 km²
  • 212 people/km²
  • 238 m
Location map: Lontzen

Key points

Among the 84 municipalities in Liège, Lontzen ranks No. 49 by population.

Share of inhabitants of foreign nationality: 19.2% in Lontzen, compared with an average of 11.6% in Liège and 13.8% nationally.

Largest business sector: Wholesale and retail trade, with 18.2% of the area's businesses.

A 1 kWp solar panel tilted at 39° generates about 1,023 kWh a year here.

Did you know?

Lontzen in numbers

Population
6,080
ranked 457 of 565 +7.5%
Population density
212people/km²
ranked 377 of 564
Area
28.7km²
ranked 404 of 565
Elevation
238m
ranked 78 of 565
Residential buildings with central heating or air conditioning
90.9%
ranked 34 of 564
Share of inhabitants of foreign nationality
19.2%
ranked 50 of 564
VAT-liable enterprises
511
ranked 484 of 565
Number of dwellings
2,678
ranked 480 of 565

All indicators for Lontzen

Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.

Population

IndicatorLontzenLiègeNationalPositionRank
Share of inhabitants aged 65 and over (2026)20.0%20.6%21.7%ranked 419 of 564
Share of inhabitants under 20 (2026)23.4%22.2%21.5%ranked 83 of 564

Housing

IndicatorLontzenLiègeNationalPositionRank
Buildings built before 1946 (2024)28.0%–34.6%ranked 339 of 564
Buildings built after 2001 (2024)20.0%–15.3%ranked 88 of 564
Share of houses in the building stock (2024)79.9%–79.9%ranked 278 of 564
Number of dwellings (2024)2,678549,9485,783,434ranked 480 of 565
New dwellings authorised per year per 1,000 inhabitants (2021-2025)5.86 ‰ inh.2.72 ‰ inh.4.39 ‰ inh.ranked 144 of 564

Energy

IndicatorLontzenLiègeNationalPositionRank
Residential buildings with central heating or air conditioning (2024)90.9%–76.7%ranked 34 of 564

Economy

IndicatorLontzenLiègeNationalPositionRank
VAT-liable enterprises (2024)51189,3301,170,010ranked 484 of 565
VAT-liable enterprises per 1,000 inhabitants (2024)84.0 ‰ inh.79.4 ‰ inh.102.2 ‰ inh.ranked 431 of 564
Net taxable income per inhabitant (2023)22,313 €21,639 €24,247 €ranked 410 of 564
Median disposable income (administrative) (2023)30,251 €–30,830 €ranked 333 of 551
Median selling price of houses (2025)326,500 €–302,500 €ranked 218 of 554

Transport

IndicatorLontzenLiègeNationalPositionRank
Cars per household (2025)1.361.111.25ranked 81 of 564
Households without a car (2025)15.9%25.4%17.6%ranked 379 of 564

Society

IndicatorLontzenLiègeNationalPositionRank
Share of inhabitants of foreign nationality (2026)19.2%11.6%6.4%ranked 50 of 564
Administrative poverty risk (2023)7.8%14.1%7.0%ranked 231 of 551

Population of Lontzen over time

5,5915,7805,9686,1572016: 5,6562017: 5,6842018: 5,6952019: 5,7642020: 5,8332021: 5,8852022: 5,9472023: 6,0082024: 6,0582025: 6,0922026: 6,080201620182020202220242026

Lontzen had 5,656 residents in 2016 and 6,080 in 2026.

YearPopulation
20215,885
20225,947
20236,008
20246,058
20256,092
20266,080

Where is Lontzen?

Business sectors: Lontzen

Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.

Sunshine and temperatures: Lontzen

Annual solar output
1,023kWh
for 1 kWp tilted at 39°
Warmest month
17.0°C
July
Coldest month
1.2°C
January
Most productive month
122kWh
June

Jan: 38 kWhJanFeb: 56 kWhFebMar: 90 kWhMarApr: 115 kWhAprMay: 121 kWhMayJun: 122 kWhJunJul: 121 kWhJulAug: 111 kWhAugSep: 99 kWhSepOct: 73 kWhOctNov: 45 kWhNovDec: 33 kWhDec0 °CJan: 1.2 °CFeb: 1.8 °CMar: 4.4 °CApr: 8.2 °CMay: 11.9 °CJun: 15.5 °CJul: 17.0 °CAug: 16.3 °CSep: 13.6 °COct: 10.1 °CNov: 5.4 °CDec: 2.5 °C
Monthly solar output (kWh per 1 kWp)Average temperature (°C)

Frequently asked questions

What is the population of Lontzen?

Lontzen has 6,080 residents (2026), ranking 457 of 565 municipalities.

How big is Lontzen?

Lontzen covers 28.7 km², with a density of 212 people per km².

Is the population of Lontzen growing?

Between 2016 and 2026, the population of Lontzen went from 5,656 to 6,080, a change of +7.5%.

Where is Lontzen?

Lontzen is in Liège. It belongs to Verviers (arrondissement). Latitude 50.683, longitude 6.000.

Residential buildings with central heating or air conditioning: what is the figure for Lontzen?

In Lontzen, “Residential buildings with central heating or air conditioning” stands at 90.9% (2024), ranking 34 of 564 municipalities; the national median is 76.7%.

Share of inhabitants of foreign nationality: what is the figure for Lontzen?

In Lontzen, “Share of inhabitants of foreign nationality” stands at 19.2% (2026), ranking 50 of 564 municipalities; the national median is 6.4%.

How much electricity does a solar panel produce in Lontzen?

In Lontzen, a 1 kWp south-facing system tilted at 39° produces about 1,023 kWh a year.

Which municipalities border Lontzen?

The nearest to Lontzen are Kelmis (1.9 km), Welkenraedt (3.2 km), Eupen (6.0 km), Baelen (6.3 km), Plombières (6.6 km).

Coat of arms: https://commons.wikimedia.org/wiki/User:Juergenk59, CC BY-SA 3.0, Wikimedia Commons · Flag: Jürgen Krause, CC BY-SA 3.0, Wikimedia Commons. Coats of arms and flags are shown for identification only; this site is not affiliated with any public authority.