Overijse: population and statistics
Overijse has a population of 26,452 (2026) across 45.0 km², or 588 people per km². It ranks 113 of 565 municipalities by population. Its population is growing: +6.0% between 2016 and 2026.
- 26,452 residents
- 45.0 km²
- 588 people/km²
- 104 m
Key points
Among the 63 municipalities in Flemish Brabant, Overijse ranks No. 12 by population.
Largest business sector: Professional, scientific and technical, with 28.4% of the area's businesses.
A 1 kWp solar panel tilted at 39° generates about 1,065 kWh a year here.
Did you know?
- Number 1 in Flemish Brabant for “Elevation”.
- “Residential buildings with central heating or air conditioning”: higher than in 98% of municipalities.
- “Median disposable income (administrative)”: higher than in 97% of municipalities.
- “Share of inhabitants under 20”: higher than in 91% of municipalities.
- Its area is roughly equal to 6,301 football pitches.
- The nearest municipality is Huldenberg, 3.5 km away.
- The nearest more populous municipality is Woluwe-Saint-Pierre (42,566 residents), 9.5 km away.
Overijse in numbers
All indicators for Overijse
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 | Overijse | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants aged 65 and over (2026) | 20.4% | 20.8% | 21.7% | ranked 385 of 564 | |
| Share of inhabitants under 20 (2026) | 24.3% | 22.6% | 21.5% | ranked 54 of 564 |
Housing
| Indicator | Overijse | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings built before 1946 (2024) | 20.9% | – | 34.6% | ranked 437 of 564 | |
| Buildings built after 2001 (2024) | 8.3% | – | 15.3% | ranked 492 of 564 | |
| Share of houses in the building stock (2024) | 83.3% | – | 79.9% | ranked 104 of 564 | |
| Number of dwellings (2024) | 10,921 | 542,504 | 5,783,434 | ranked 135 of 565 | |
| New dwellings authorised per year per 1,000 inhabitants (2021-2025) | 2.72 ‰ inh. | 4.02 ‰ inh. | 4.39 ‰ inh. | ranked 435 of 564 |
Energy
| Indicator | Overijse | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Residential buildings with central heating or air conditioning (2024) | 94.0% | – | 76.7% | ranked 9 of 564 |
Economy
| Indicator | Overijse | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| VAT-liable enterprises (2024) | 3,479 | 130,833 | 1,170,010 | ranked 71 of 565 | |
| VAT-liable enterprises per 1,000 inhabitants (2024) | 131.5 ‰ inh. | 108.1 ‰ inh. | 102.2 ‰ inh. | ranked 61 of 564 | |
| Net taxable income per inhabitant (2023) | 30,094 € | 26,927 € | 24,247 € | ranked 22 of 564 | |
| Median disposable income (administrative) (2023) | 34,973 € | – | 30,830 € | ranked 16 of 551 | |
| Median selling price of houses (2025) | 530,000 € | – | 302,500 € | ranked 22 of 554 | |
| Median selling price of apartments (2025) | 325,000 € | – | 249,900 € | ranked 20 of 299 |
Transport
| Indicator | Overijse | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Cars per household (2025) | 1.42 | 1.20 | 1.25 | ranked 46 of 564 | |
| Households without a car (2025) | 14.9% | 21.3% | 17.6% | ranked 449 of 564 |
Society
| Indicator | Overijse | Flemish Brabant | National | Position | Rank |
|---|---|---|---|---|---|
| Share of inhabitants of foreign nationality (2026) | 16.4% | 11.9% | 6.4% | ranked 68 of 564 | |
| Administrative poverty risk (2023) | 5.5% | 6.8% | 7.0% | ranked 403 of 551 |
Population of Overijse over time
Overijse had 24,959 residents in 2016 and 26,452 in 2026.
| Year | Population |
|---|---|
| 2021 | 25,655 |
| 2022 | 25,888 |
| 2023 | 25,978 |
| 2024 | 25,970 |
| 2025 | 26,250 |
| 2026 | 26,452 |
Where is Overijse?
Business sectors: Overijse
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Professional, scientific and technical28.4% ×1.4
- Construction14.3% ×1.0
- Wholesale and retail trade11.6% ×0.8
- Information and communication7.8% ×1.4
- Administrative and support services7.8% ×1.2
- Health and social work4.6% ×1.0
- Other service activities4.1% ×0.6
- Accommodation and food services3.5% ×0.6
Sunshine and temperatures: Overijse
Frequently asked questions
What is the population of Overijse?
Overijse has 26,452 residents (2026), ranking 113 of 565 municipalities.
How big is Overijse?
Overijse covers 45.0 km², with a density of 588 people per km².
Is the population of Overijse growing?
Between 2016 and 2026, the population of Overijse went from 24,959 to 26,452, a change of +6.0%.
Where is Overijse?
Overijse is in Flemish Brabant. It belongs to Halle-Vilvoorde (arrondissement). Latitude 50.783, longitude 4.533.
Residential buildings with central heating or air conditioning: what is the figure for Overijse?
In Overijse, “Residential buildings with central heating or air conditioning” stands at 94.0% (2024), ranking 9 of 564 municipalities; the national median is 76.7%.
Median disposable income (administrative): what is the figure for Overijse?
In Overijse, “Median disposable income (administrative)” stands at 34,973 € (2023), ranking 16 of 551 municipalities; the national median is 30,830 €.
How much electricity does a solar panel produce in Overijse?
In Overijse, a 1 kWp south-facing system tilted at 39° produces about 1,065 kWh a year.
Which municipalities border Overijse?
The nearest to Overijse are Huldenberg (3.5 km), Tervuren (4.4 km), Hoeilaart (5.0 km), Wezembeek-Oppem (6.0 km), La Hulpe (6.6 km).
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