Sint-Pieters-Leeuw: population and statistics
Sint-Pieters-Leeuw has a population of 37,055 (2026) across 40.7 km², or 911 people per km². It ranks 61 of 565 municipalities by population. Its population is growing: +10.6% between 2016 and 2026.
- 37,055 residents
- 40.7 km²
- 911 people/km²
- 31 m
Key points
Among the 63 municipalities in Flemish Brabant, Sint-Pieters-Leeuw ranks No. 7 by population.
Share of inhabitants under 20: 25.5% in Sint-Pieters-Leeuw, compared with an average of 22.6% in Flemish Brabant and 21.8% nationally.
Largest business sector: Construction, with 32.5% of the area's businesses.
A 1 kWp solar panel tilted at 39° generates about 1,058 kWh a year here.
Did you know?
- “Share of inhabitants under 20”: higher than in 96% of municipalities.
- “VAT-liable enterprises”: higher than in 91% of municipalities.
- “New dwellings authorised per year per 1,000 inhabitants”: lower than in 90% of municipalities.
- Its area is roughly equal to 5,696 football pitches.
- Its population density is 2.4 times the national average.
- The nearest municipality is Drogenbos, 4.7 km away.
- The nearest more populous municipality is Forest (58,904 residents), 5.7 km away.
Sint-Pieters-Leeuw in numbers
All indicators for Sint-Pieters-Leeuw
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
| Indicator | Sint-Pieters-Leeuw | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants aged 65 and over (2026) | 18.5% | 20.8% | 21.7% | ranked 493 of 564 | |
| Share of inhabitants under 20 (2026) | 25.5% | 22.6% | 21.5% | ranked 23 of 564 |
Housing
| Indicator | Sint-Pieters-Leeuw | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings built before 1946 (2024) | 30.9% | – | 34.6% | ranked 314 of 564 | |
| Buildings built after 2001 (2024) | 10.8% | – | 15.3% | ranked 441 of 564 | |
| Share of houses in the building stock (2024) | 81.6% | – | 79.9% | ranked 183 of 564 | |
| Number of dwellings (2024) | 14,903 | 542,504 | 5,783,434 | ranked 87 of 565 | |
| New dwellings authorised per year per 1,000 inhabitants (2021-2025) | 1.75 ‰ inh. | 4.02 ‰ inh. | 4.39 ‰ inh. | ranked 508 of 564 |
Energy
| Indicator | Sint-Pieters-Leeuw | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Residential buildings with central heating or air conditioning (2024) | 85.0% | – | 76.7% | ranked 128 of 564 |
Economy
| Indicator | Sint-Pieters-Leeuw | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| VAT-liable enterprises (2024) | 3,913 | 130,833 | 1,170,010 | ranked 54 of 565 | |
| VAT-liable enterprises per 1,000 inhabitants (2024) | 105.6 ‰ inh. | 108.1 ‰ inh. | 102.2 ‰ inh. | ranked 250 of 564 | |
| Net taxable income per inhabitant (2023) | 22,461 € | 26,927 € | 24,247 € | ranked 394 of 564 | |
| Median disposable income (administrative) (2023) | 29,259 € | – | 30,830 € | ranked 411 of 551 | |
| Median selling price of houses (2025) | 365,000 € | – | 302,500 € | ranked 138 of 554 | |
| Median selling price of apartments (2025) | 267,500 € | – | 249,900 € | ranked 106 of 299 |
Transport
| Indicator | Sint-Pieters-Leeuw | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Cars per household (2025) | 1.16 | 1.20 | 1.25 | ranked 402 of 564 | |
| Households without a car (2025) | 21.5% | 21.3% | 17.6% | ranked 145 of 564 |
Society
| Indicator | Sint-Pieters-Leeuw | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants of foreign nationality (2026) | 16.8% | 11.9% | 6.4% | ranked 61 of 564 | |
| Administrative poverty risk (2023) | 9.0% | 6.8% | 7.0% | ranked 165 of 551 |
Population of Sint-Pieters-Leeuw over time
Sint-Pieters-Leeuw had 33,512 residents in 2016 and 37,055 in 2026.
| Year | Population |
|---|---|
| 2021 | 35,061 |
| 2022 | 35,486 |
| 2023 | 36,052 |
| 2024 | 36,525 |
| 2025 | 36,732 |
| 2026 | 37,055 |
Where is Sint-Pieters-Leeuw?
Business sectors: Sint-Pieters-Leeuw
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Construction32.5% ×2.4
- Wholesale and retail trade15.7% ×1.1
- Professional, scientific and technical11.5% ×0.6
- Administrative and support services6.4% ×1.0
- Other service activities5.5% ×0.8
- Transport and storage5.1% ×2.0
- Information and communication4.3% ×0.8
- Accommodation and food services4.2% ×0.8
Sunshine and temperatures: Sint-Pieters-Leeuw
Frequently asked questions
What is the population of Sint-Pieters-Leeuw?
Sint-Pieters-Leeuw has 37,055 residents (2026), ranking 61 of 565 municipalities.
How big is Sint-Pieters-Leeuw?
Sint-Pieters-Leeuw covers 40.7 km², with a density of 911 people per km².
Is the population of Sint-Pieters-Leeuw growing?
Between 2016 and 2026, the population of Sint-Pieters-Leeuw went from 33,512 to 37,055, a change of +10.6%.
Where is Sint-Pieters-Leeuw?
Sint-Pieters-Leeuw is in Flemish Brabant. It belongs to Halle-Vilvoorde (arrondissement). Latitude 50.783, longitude 4.250.
Share of inhabitants under 20: what is the figure for Sint-Pieters-Leeuw?
In Sint-Pieters-Leeuw, “Share of inhabitants under 20” stands at 25.5% (2026), ranking 23 of 564 municipalities; the national median is 21.5%.
VAT-liable enterprises: what is the figure for Sint-Pieters-Leeuw?
In Sint-Pieters-Leeuw, “VAT-liable enterprises” stands at 3,913 (2024), ranking 54 of 565 municipalities; the national median is 1,324.
How much electricity does a solar panel produce in Sint-Pieters-Leeuw?
In Sint-Pieters-Leeuw, a 1 kWp south-facing system tilted at 39° produces about 1,058 kWh a year.
Which municipalities border Sint-Pieters-Leeuw?
The nearest to Sint-Pieters-Leeuw are Drogenbos (4.7 km), Beersel (4.7 km), Halle (5.3 km), Forest (5.7 km), Linkebeek (6.1 km).
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