Rotselaar: population and statistics
Rotselaar has a population of 17,807 (2026) across 37.2 km², or 478 people per km². It ranks 206 of 565 municipalities by population. Its population is growing: +8.3% between 2016 and 2026.
- 17,807 residents
- 37.2 km²
- 478 people/km²
- 14 m
Key points
Among the 63 municipalities in Flemish Brabant, Rotselaar ranks No. 25 by population.
Administrative poverty risk: 3.5% in Rotselaar, compared with an average of 6.8% in Flemish Brabant and 11.0% nationally.
Net taxable income per inhabitant: 29,868 € in Rotselaar, compared with an average of 26,927 € in Flemish Brabant and 23,352 € nationally.
Largest business sector: Professional, scientific and technical, with 24.7% of the area's businesses.
A 1 kWp solar panel tilted at 39° generates about 1,060 kWh a year here.
Did you know?
- “Administrative poverty risk”: lower than in 99% of municipalities.
- “Net taxable income per inhabitant”: higher than in 96% of municipalities.
- “New dwellings authorised per year per 1,000 inhabitants”: higher than in 92% of municipalities.
- Its area is roughly equal to 5,213 football pitches.
- The nearest municipality is Tremelo, 4.5 km away.
- The nearest more populous municipality is Leuven (105,357 residents), 8.2 km away.
- A 4 kWp rooftop solar system here would generate about 4,240 kWh a year, roughly what an average household uses.
Rotselaar in numbers
All indicators for Rotselaar
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 | Rotselaar | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants aged 65 and over (2026) | 22.0% | 20.8% | 21.7% | ranked 247 of 564 | |
| Share of inhabitants under 20 (2026) | 21.7% | 22.6% | 21.5% | ranked 260 of 564 |
Housing
| Indicator | Rotselaar | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings built before 1946 (2024) | 16.3% | – | 34.6% | ranked 495 of 564 | |
| Buildings built after 2001 (2024) | 20.8% | – | 15.3% | ranked 71 of 564 | |
| Share of houses in the building stock (2024) | 82.7% | – | 79.9% | ranked 132 of 564 | |
| Number of dwellings (2024) | 8,058 | 542,504 | 5,783,434 | ranked 213 of 565 | |
| New dwellings authorised per year per 1,000 inhabitants (2021-2025) | 8.27 ‰ inh. | 4.02 ‰ inh. | 4.39 ‰ inh. | ranked 48 of 564 |
Energy
| Indicator | Rotselaar | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Residential buildings with central heating or air conditioning (2024) | 88.8% | – | 76.7% | ranked 59 of 564 |
Economy
| Indicator | Rotselaar | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| VAT-liable enterprises (2024) | 2,026 | 130,833 | 1,170,010 | ranked 169 of 565 | |
| VAT-liable enterprises per 1,000 inhabitants (2024) | 113.8 ‰ inh. | 108.1 ‰ inh. | 102.2 ‰ inh. | ranked 175 of 564 | |
| Net taxable income per inhabitant (2023) | 29,868 € | 26,927 € | 24,247 € | ranked 24 of 564 | |
| Median disposable income (administrative) (2023) | 34,653 € | – | 30,830 € | ranked 21 of 551 | |
| Median selling price of houses (2025) | 395,000 € | – | 302,500 € | ranked 104 of 554 | |
| Median selling price of apartments (2025) | 330,000 € | – | 249,900 € | ranked 18 of 299 |
Transport
| Indicator | Rotselaar | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Cars per household (2025) | 1.33 | 1.20 | 1.25 | ranked 131 of 564 | |
| Households without a car (2025) | 14.5% | 21.3% | 17.6% | ranked 474 of 564 |
Society
| Indicator | Rotselaar | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants of foreign nationality (2026) | 4.4% | 11.9% | 6.4% | ranked 422 of 564 | |
| Administrative poverty risk (2023) | 3.5% | 6.8% | 7.0% | ranked 549 of 551 |
Population of Rotselaar over time
Rotselaar had 16,439 residents in 2016 and 17,807 in 2026.
| Year | Population |
|---|---|
| 2021 | 17,081 |
| 2022 | 17,294 |
| 2023 | 17,499 |
| 2024 | 17,672 |
| 2025 | 17,689 |
| 2026 | 17,807 |
Where is Rotselaar?
Business sectors: Rotselaar
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Professional, scientific and technical24.7% ×1.2
- Wholesale and retail trade12.8% ×0.9
- Construction10.1% ×0.7
- Information and communication9.2% ×1.7
- Administrative and support services7.5% ×1.1
- Health and social work7.1% ×1.5
- Other service activities6.6% ×1.0
- Arts, entertainment and recreation5.3% ×1.3
Sunshine and temperatures: Rotselaar
Frequently asked questions
What is the population of Rotselaar?
Rotselaar has 17,807 residents (2026), ranking 206 of 565 municipalities.
How big is Rotselaar?
Rotselaar covers 37.2 km², with a density of 478 people per km².
Is the population of Rotselaar growing?
Between 2016 and 2026, the population of Rotselaar went from 16,439 to 17,807, a change of +8.3%.
Where is Rotselaar?
Rotselaar is in Flemish Brabant. It belongs to Leuven (arrondissement). Latitude 50.951, longitude 4.711.
Administrative poverty risk: what is the figure for Rotselaar?
In Rotselaar, “Administrative poverty risk” stands at 3.5% (2023), ranking 549 of 551 municipalities; the national median is 7.0%.
Net taxable income per inhabitant: what is the figure for Rotselaar?
In Rotselaar, “Net taxable income per inhabitant” stands at 29,868 € (2023), ranking 24 of 564 municipalities; the national median is 24,247 €.
How much electricity does a solar panel produce in Rotselaar?
In Rotselaar, a 1 kWp south-facing system tilted at 39° produces about 1,060 kWh a year.
Which municipalities border Rotselaar?
The nearest to Rotselaar are Tremelo (4.5 km), Holsbeek (5.5 km), Herent (5.5 km), Haacht (5.9 km), Keerbergen (8.0 km).
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