Seixal: population and statistics
Seixal has a population of 198,254 (2025) across 95.5 km², or 2,077 people per km². It ranks 10 of 308 municipalities by population. Its population is growing: +15.9% between 2021 and 2025.
- 198,254 residents
- 95.5 km²
- 2,077 people/km²
- 0 m
Key points
Among the 13 municipalities in Setúbal, Seixal ranks No. 2 by population.
Buildings built before 1946: 3.1% in Seixal, compared with an average of 7.1% in Setúbal and 12.5% nationally.
Largest business sector: Administrative and support services, with 24.0% of the area's businesses.
A 1 kWp solar panel tilted at 34° generates about 1,624 kWh a year here.
Seixal in numbers
Where is Seixal?
Population of Seixal over time
Seixal had 171,108 residents in 2021 and 198,254 in 2025.
| Year | Population |
|---|---|
| 2021 | 171,108 |
| 2022 | 179,635 |
| 2023 | 188,623 |
| 2024 | 195,706 |
| 2025 | 198,254 |
Did you know?
- “Buildings built before 1946”: lower than in 99% of municipalities.
- “Population density (inhabitants per km²)”: higher than in 97% of municipalities.
- “Overnight stays per 100 inhabitants”: lower than in 97% of municipalities.
- Its area is roughly equal to 13,368 football pitches.
- Its population density is 16.8 times the national average.
- The nearest municipality is Barreiro, 3.6 km away.
- The nearest more populous municipality is Lisbon (658,236 residents), 10 km away.
All indicators for Seixal
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 | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Population aged 65 and over (2025) | 20.3% | 21.4% | 26.9% | ranked 276 of 307 | |
| Population under 15 (2025) | 14.1% | 13.5% | 11.7% | ranked 15 of 307 | |
| Ageing index (older people per 100 young people) (2025) | 143.8 | – | 229.9 | ranked 285 of 307 | |
| Population density (inhabitants per km²) (2025) | 2,077 inh./km² | – | 69.6 inh./km² | ranked 11 of 307 | |
| Population change between 2021 and 2025 (2025) | 15.86% | – | 4.50% | ranked 11 of 307 |
Housing
| Indicator | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings (2021) | 32,204 | 211,746 | 3,573,416 | ranked 20 of 308 | |
| Buildings built before 1946 (2021) | 3.1% | 7.1% | 12.8% | ranked 304 of 307 | |
| Buildings built since 2001 (2021) | 22.3% | 19.1% | 16.8% | ranked 54 of 307 | |
| Buildings in need of medium or extensive repair (2021) | 7.6% | 11.7% | 14.2% | ranked 285 of 307 | |
| Conventional family dwellings (2021) | 82,909 | 477,444 | 5,970,677 | ranked 11 of 308 | |
| Dwellings used as secondary residences (2021) | 10.5% | 13.3% | 25.8% | ranked 258 of 307 | |
| Vacant dwellings (2021) | 8.0% | 10.0% | 13.1% | ranked 291 of 307 | |
| Owner-occupied usual residences (2021) | 75.1% | 69.6% | 77.8% | ranked 194 of 307 | |
| Rented usual residences (2021) | 18.1% | 22.9% | 13.6% | ranked 80 of 307 | |
| Usual residences in buildings with 3 or more dwellings (2021) | 68.3% | 64.1% | 13.8% | ranked 14 of 307 | |
| Median selling price of housing per m² (2025) | 2,654 €/m² | – | 1,108 €/m² | ranked 27 of 305 |
Energy
| Indicator | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Usual residences without heating (2021) | 33.9% | 34.1% | 18.6% | ranked 67 of 307 | |
| Usual residences with central heating (2021) | 5.6% | 5.5% | 12.6% | ranked 213 of 307 | |
| Electricity consumption per inhabitant (2024) | 5,996 kWh/inh. | 5,636 kWh/inh. | 3,690 kWh/inh. | ranked 47 of 307 |
Economy
| Indicator | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Enterprises (2023) | 20,316 | 109,683 | 1,510,274 | ranked 14 of 308 | |
| Enterprises per 1,000 inhabitants (2023) | 107.7 | 112.4 | 128.1 | ranked 257 of 307 | |
| Declared gross income per inhabitant (2024) | 12,579 € | 12,664 € | 10,553 € | ranked 37 of 307 | |
| Purchasing power per capita (Portugal = 100) (2023) | 96.0 | 99.5 | 79.5 | ranked 48 of 307 |
Employment
| Indicator | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Unemployment rate (2021) | 9.2% | 9.3% | 7.0% | ranked 50 of 307 | |
| Average monthly earnings of employees (2024) | 1,585 € | – | 1,258 € | ranked 17 of 307 |
Tourism
| Indicator | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Overnight stays in tourist accommodation (2025) | 71,118 | 2,595,728 | 82,011,658 | ranked 118 of 307 | |
| Overnight stays per 100 inhabitants (2025) | 36.1 | 278.7 | 275.0 | ranked 298 of 306 |
Education
| Indicator | Seixal | Setúbal | National | Position | Rank |
|---|---|---|---|---|---|
| Population with completed higher education (2021) | 21.6% | 21.5% | 13.2% | ranked 35 of 307 |
Sunshine and temperatures: Seixal
Business sectors: Seixal
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Administrative and support services24.0% ×1.5
- Wholesale and retail trade13.1% ×0.9
- Professional, scientific and technical8.7% ×0.8
- Construction8.7% ×1.2
- Health and social work7.8% ×1.0
- Other service activities6.7% ×1.3
- Accommodation and food services6.0% ×0.7
- Transport and storage5.7% ×1.6
Frequently asked questions
What is the population of Seixal?
Seixal has 198,254 residents (2025), ranking 10 of 308 municipalities.
How big is Seixal?
Seixal covers 95.5 km², with a density of 2,077 people per km².
Is the population of Seixal growing?
Between 2021 and 2025, the population of Seixal went from 171,108 to 198,254, a change of +15.9%.
Where is Seixal?
Seixal is in Setúbal. Latitude 38.642, longitude −9.107.
Buildings built before 1946: what is the figure for Seixal?
In Seixal, “Buildings built before 1946” stands at 3.1% (2021), ranking 304 of 307 municipalities; the national median is 12.8%.
Population density (inhabitants per km²): what is the figure for Seixal?
In Seixal, “Population density (inhabitants per km²)” stands at 2,077 inh./km² (2025), ranking 11 of 307 municipalities; the national median is 69.6 inh./km².
How much electricity does a solar panel produce in Seixal?
In Seixal, a 1 kWp south-facing system tilted at 34° produces about 1,624 kWh a year.
Which municipalities border Seixal?
The nearest to Seixal are Barreiro (3.6 km), Almada (6.1 km), Lisbon (10 km), Moita (11 km), Montijo (13 km).
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