Oeiras: population and statistics
Oeiras has a population of 188,056 (2025) across 45.9 km², or 4,099 people per km². It ranks 11 of 308 municipalities by population. Its population is growing: +6.1% between 2021 and 2025.
- 188,056 residents
- 45.9 km²
- 4,099 people/km²
- 48 m
Key points
Among the 16 municipalities in Lisbon, Oeiras ranks No. 6 by population.
Population with completed higher education: 40.8% in Oeiras, compared with an average of 29.8% in Lisbon and 21.5% nationally.
Declared gross income per inhabitant: 18,209 € in Oeiras, compared with an average of 14,038 € in Lisbon and 12,214 € nationally.
Largest business sector: Administrative and support services, with 20.3% of the area's businesses.
A 1 kWp solar panel tilted at 34° generates about 1,620 kWh a year here.
Oeiras in numbers
Where is Oeiras?
Population of Oeiras over time
Oeiras had 177,267 residents in 2021 and 188,056 in 2025.
| Year | Population |
|---|---|
| 2021 | 177,267 |
| 2022 | 182,481 |
| 2023 | 185,767 |
| 2024 | 187,881 |
| 2025 | 188,056 |
Did you know?
- Number 1 in Lisbon for “Average monthly earnings of employees”.
- Number 1 in Lisbon for “Declared gross income per inhabitant”.
- “Population with completed higher education”: higher than in 99% of municipalities.
- “Declared gross income per inhabitant”: higher than in 99% of municipalities.
- “Population density (inhabitants per km²)”: higher than in 99% of municipalities.
- Its area is roughly equal to 6,426 football pitches.
- Its population density is 33.1 times the national average.
All indicators for Oeiras
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 | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Population aged 65 and over (2025) | 23.7% | 20.2% | 26.9% | ranked 215 of 307 | |
| Population under 15 (2025) | 13.2% | 13.2% | 11.7% | ranked 42 of 307 | |
| Ageing index (older people per 100 young people) (2025) | 180.0 | – | 229.9 | ranked 233 of 307 | |
| Population density (inhabitants per km²) (2025) | 4,099 inh./km² | – | 69.6 inh./km² | ranked 5 of 307 | |
| Population change between 2021 and 2025 (2025) | 6.09% | – | 4.50% | ranked 109 of 307 |
Housing
| Indicator | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings (2021) | 18,488 | 365,844 | 3,573,416 | ranked 60 of 308 | |
| Buildings built before 1946 (2021) | 6.4% | 14.2% | 12.8% | ranked 281 of 307 | |
| Buildings built since 2001 (2021) | 17.0% | 14.1% | 16.8% | ranked 150 of 307 | |
| Buildings in need of medium or extensive repair (2021) | 7.8% | 11.1% | 14.2% | ranked 282 of 307 | |
| Conventional family dwellings (2021) | 86,751 | 1,188,665 | 5,970,677 | ranked 10 of 308 | |
| Dwellings used as secondary residences (2021) | 6.3% | 9.2% | 25.8% | ranked 295 of 307 | |
| Vacant dwellings (2021) | 9.6% | 11.1% | 13.1% | ranked 255 of 307 | |
| Owner-occupied usual residences (2021) | 67.3% | 62.8% | 77.8% | ranked 279 of 307 | |
| Rented usual residences (2021) | 25.8% | 30.0% | 13.6% | ranked 23 of 307 | |
| Usual residences in buildings with 3 or more dwellings (2021) | 85.1% | 76.1% | 13.8% | ranked 3 of 307 | |
| Median selling price of housing per m² (2025) | 4,187 €/m² | – | 1,108 €/m² | ranked 3 of 305 |
Energy
| Indicator | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Usual residences without heating (2021) | 30.2% | 34.6% | 18.6% | ranked 80 of 307 | |
| Usual residences with central heating (2021) | 10.7% | 8.6% | 12.6% | ranked 167 of 307 | |
| Electricity consumption per inhabitant (2024) | 3,518 kWh/inh. | 3,519 kWh/inh. | 3,690 kWh/inh. | ranked 178 of 307 |
Economy
| Indicator | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Enterprises (2023) | 29,402 | 386,981 | 1,510,274 | ranked 6 of 308 | |
| Enterprises per 1,000 inhabitants (2023) | 158.3 | 148.6 | 128.1 | ranked 58 of 307 | |
| Declared gross income per inhabitant (2024) | 18,209 € | 14,038 € | 10,553 € | ranked 1 of 307 | |
| Purchasing power per capita (Portugal = 100) (2023) | 150.1 | 124.4 | 79.5 | ranked 3 of 307 |
Employment
| Indicator | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Unemployment rate (2021) | 7.4% | 8.3% | 7.0% | ranked 130 of 307 | |
| Average monthly earnings of employees (2024) | 2,214 € | – | 1,258 € | ranked 4 of 307 |
Tourism
| Indicator | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Overnight stays in tourist accommodation (2025) | 507,896 | 20,050,750 | 82,011,658 | ranked 23 of 307 | |
| Overnight stays per 100 inhabitants (2025) | 270.2 | 751.9 | 275.0 | ranked 157 of 306 | |
| Share of overnight stays in local accommodation (alojamento local) (2025) | 5.5% | – | 18.4% | ranked 159 of 178 |
Education
| Indicator | Oeiras | Lisbon | National | Position | Rank |
|---|---|---|---|---|---|
| Population with completed higher education (2021) | 40.8% | 29.8% | 13.2% | ranked 2 of 307 |
Sunshine and temperatures: Oeiras
Business sectors: Oeiras
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Administrative and support services20.3% ×1.2
- Professional, scientific and technical16.7% ×1.6
- Wholesale and retail trade10.5% ×0.7
- Health and social work9.9% ×1.3
- Real estate6.4% ×1.5
- Accommodation and food services5.6% ×0.7
- Information and communication5.2% ×2.3
- Arts, entertainment and recreation4.9% ×1.6
Frequently asked questions
What is the population of Oeiras?
Oeiras has 188,056 residents (2025), ranking 11 of 308 municipalities.
How big is Oeiras?
Oeiras covers 45.9 km², with a density of 4,099 people per km².
Is the population of Oeiras growing?
Between 2021 and 2025, the population of Oeiras went from 177,267 to 188,056, a change of +6.1%.
Where is Oeiras?
Oeiras is in Lisbon. Latitude 38.697, longitude −9.302.
Population with completed higher education: what is the figure for Oeiras?
In Oeiras, “Population with completed higher education” stands at 40.8% (2021), ranking 2 of 307 municipalities; the national median is 13.2%.
Declared gross income per inhabitant: what is the figure for Oeiras?
In Oeiras, “Declared gross income per inhabitant” stands at 18,209 € (2024), ranking 1 of 307 municipalities; the national median is 10,553 €.
How much electricity does a solar panel produce in Oeiras?
In Oeiras, a 1 kWp south-facing system tilted at 34° produces about 1,620 kWh a year.
Which municipalities border Oeiras?
The nearest to Oeiras are Amadora (8.4 km), Cascais (10 km), Almada (13 km), Sintra (14 km), Lisbon (14 km).
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