Municipality · Halle-Vilvoorde · Flemish BrabantCoat of arms of MerchtemFlag of Merchtem

Merchtem: population and statistics

Merchtem has a population of 18,467 (2026) across 36.9 km², or 500 people per km². It ranks 195 of 565 municipalities by population. Its population is growing: +14.8% between 2016 and 2026.

  • 18,467 residents
  • 36.9 km²
  • 500 people/km²
  • 21 m
Location map: Merchtem

Key points

Among the 63 municipalities in Flemish Brabant, Merchtem ranks No. 23 by population.

Net taxable income per inhabitant: 27,270 € in Merchtem, compared with an average of 26,927 € in Flemish Brabant and 23,352 € nationally.

Largest business sector: Professional, scientific and technical, with 22.2% of the area's businesses.

A 1 kWp solar panel tilted at 39° generates about 1,080 kWh a year here.

Did you know?

Merchtem in numbers

Population
18,467
ranked 195 of 565 +14.8%
Population density
500people/km²
ranked 183 of 564
Area
36.9km²
ranked 328 of 565
Elevation
21m
ranked 415 of 565
Residential buildings with central heating or air conditioning
89.4%
ranked 49 of 564
Net taxable income per inhabitant
27,270€
ranked 92 of 564
Buildings built before 1946
20.2%
ranked 447 of 564
Share of inhabitants under 20
22.5%
ranked 165 of 564

All indicators for Merchtem

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

IndicatorMerchtemFlemish BrabantNationalPositionRank
Share of inhabitants aged 65 and over (2026)21.5%20.8%21.7%ranked 297 of 564
Share of inhabitants under 20 (2026)22.5%22.6%21.5%ranked 165 of 564

Housing

IndicatorMerchtemFlemish BrabantNationalPositionRank
Buildings built before 1946 (2024)20.2%–34.6%ranked 447 of 564
Buildings built after 2001 (2024)17.2%–15.3%ranked 198 of 564
Share of houses in the building stock (2024)79.9%–79.9%ranked 278 of 564
Number of dwellings (2024)8,184542,5045,783,434ranked 209 of 565
New dwellings authorised per year per 1,000 inhabitants (2021-2025)6.50 ‰ inh.4.02 ‰ inh.4.39 ‰ inh.ranked 117 of 564

Energy

IndicatorMerchtemFlemish BrabantNationalPositionRank
Residential buildings with central heating or air conditioning (2024)89.4%–76.7%ranked 49 of 564

Economy

IndicatorMerchtemFlemish BrabantNationalPositionRank
VAT-liable enterprises (2024)2,057130,8331,170,010ranked 162 of 565
VAT-liable enterprises per 1,000 inhabitants (2024)111.4 ‰ inh.108.1 ‰ inh.102.2 ‰ inh.ranked 196 of 564
Net taxable income per inhabitant (2023)27,270 €26,927 €24,247 €ranked 92 of 564
Median disposable income (administrative) (2023)32,250 €–30,830 €ranked 137 of 551
Median selling price of houses (2025)397,500 €–302,500 €ranked 102 of 554
Median selling price of apartments (2025)292,500 €–249,900 €ranked 53 of 299

Transport

IndicatorMerchtemFlemish BrabantNationalPositionRank
Cars per household (2025)1.221.201.25ranked 325 of 564
Households without a car (2025)18.7%21.3%17.6%ranked 232 of 564

Society

IndicatorMerchtemFlemish BrabantNationalPositionRank
Share of inhabitants of foreign nationality (2026)7.4%11.9%6.4%ranked 231 of 564
Administrative poverty risk (2023)6.3%6.8%7.0%ranked 329 of 551

Population of Merchtem over time

15,72516,75817,79218,8252016: 16,0832017: 16,1002018: 16,2942019: 16,5832020: 16,7662021: 17,1542022: 17,5072023: 17,7402024: 18,0292025: 18,3612026: 18,467201620182020202220242026

Merchtem had 16,083 residents in 2016 and 18,467 in 2026.

YearPopulation
202117,154
202217,507
202317,740
202418,029
202518,361
202618,467

Where is Merchtem?

Business sectors: Merchtem

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

Sunshine and temperatures: Merchtem

Annual solar output
1,080kWh
for 1 kWp tilted at 39°
Warmest month
18.8°C
July
Coldest month
3.8°C
January
Most productive month
130kWh
May

Jan: 41 kWhJanFeb: 57 kWhFebMar: 96 kWhMarApr: 123 kWhAprMay: 130 kWhMayJun: 127 kWhJunJul: 126 kWhJulAug: 117 kWhAugSep: 105 kWhSepOct: 76 kWhOctNov: 47 kWhNovDec: 35 kWhDec0 °CJan: 3.8 °CFeb: 4.2 °CMar: 6.6 °CApr: 10.1 °CMay: 13.7 °CJun: 17.2 °CJul: 18.8 °CAug: 18.1 °CSep: 15.6 °COct: 12.2 °CNov: 7.5 °CDec: 4.8 °C
Monthly solar output (kWh per 1 kWp)Average temperature (°C)

Frequently asked questions

What is the population of Merchtem?

Merchtem has 18,467 residents (2026), ranking 195 of 565 municipalities.

How big is Merchtem?

Merchtem covers 36.9 km², with a density of 500 people per km².

Is the population of Merchtem growing?

Between 2016 and 2026, the population of Merchtem went from 16,083 to 18,467, a change of +14.8%.

Where is Merchtem?

Merchtem is in Flemish Brabant. It belongs to Halle-Vilvoorde (arrondissement). Latitude 50.967, longitude 4.233.

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

In Merchtem, “Residential buildings with central heating or air conditioning” stands at 89.4% (2024), ranking 49 of 564 municipalities; the national median is 76.7%.

Net taxable income per inhabitant: what is the figure for Merchtem?

In Merchtem, “Net taxable income per inhabitant” stands at 27,270 € (2023), ranking 92 of 564 municipalities; the national median is 24,247 €.

How much electricity does a solar panel produce in Merchtem?

In Merchtem, a 1 kWp south-facing system tilted at 39° produces about 1,080 kWh a year.

Which municipalities border Merchtem?

The nearest to Merchtem are Opwijk (3.5 km), Buggenhout (5.8 km), Londerzeel (6.0 km), Asse (7.8 km), Meise (7.9 km).

Coat of arms: rode raaf, Public domain, Wikimedia Commons · Flag: unknown, SVG = own work, Public domain, Wikimedia Commons. Coats of arms and flags are shown for identification only; this site is not affiliated with any public authority.