Nisa: population and statistics
Nisa has a population of 6,008 (2025) across 575.7 km², or 10.4 people per km². It ranks 237 of 308 municipalities by population. Its population is growing: +1.3% between 2021 and 2025.
- 6,008 residents
- 575.7 km²
- 10 people/km²
- 305 m
Key points
Among the 15 municipalities in Portalegre, Nisa ranks No. 5 by population.
Usual residences in buildings with 3 or more dwellings: 1.9% in Nisa, compared with an average of 21.0% in Portalegre and 46.6% nationally.
Population under 15: 8.9% in Nisa, compared with an average of 11.8% in Portalegre and 12.4% nationally.
Largest business sector: Agriculture, forestry and fishing, with 26.9% of the area's businesses.
A 1 kWp solar panel tilted at 35° generates about 1,592 kWh a year here.
Nisa in numbers
Where is Nisa?
Population of Nisa over time
Nisa had 5,931 residents in 2021 and 6,008 in 2025.
| Year | Population |
|---|---|
| 2021 | 5,931 |
| 2022 | 5,903 |
| 2023 | 5,924 |
| 2024 | 5,941 |
| 2025 | 6,008 |
Did you know?
- Number 1 in Portalegre for “Dwellings used as secondary residences”.
- Number 1 in Portalegre for “Owner-occupied usual residences”.
- “Usual residences in buildings with 3 or more dwellings”: lower than in 96% of municipalities.
- “Population under 15”: lower than in 92% of municipalities.
- “Average monthly earnings of employees”: lower than in 91% of municipalities.
- Its area is roughly equal to 80,627 football pitches.
- Its population density is 11.9 times lower than the national average.
All indicators for Nisa
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 | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Population aged 65 and over (2025) | 38.3% | 29.4% | 26.9% | ranked 30 of 307 | |
| Population under 15 (2025) | 8.9% | 11.8% | 11.7% | ranked 278 of 307 | |
| Ageing index (older people per 100 young people) (2025) | 430.5 | – | 229.9 | ranked 26 of 307 | |
| Population density (inhabitants per km²) (2025) | 10.4 inh./km² | – | 69.6 inh./km² | ranked 282 of 307 | |
| Population change between 2021 and 2025 (2025) | 1.30% | – | 4.50% | ranked 232 of 307 |
Housing
| Indicator | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Buildings (2021) | 7,020 | 67,444 | 3,573,416 | ranked 171 of 308 | |
| Buildings built before 1946 (2021) | 28.6% | 23.9% | 12.8% | ranked 22 of 307 | |
| Buildings built since 2001 (2021) | 11.3% | 13.2% | 16.8% | ranked 284 of 307 | |
| Buildings in need of medium or extensive repair (2021) | 16.7% | 12.9% | 14.2% | ranked 92 of 307 | |
| Conventional family dwellings (2021) | 7,147 | 81,117 | 5,970,677 | ranked 192 of 308 | |
| Dwellings used as secondary residences (2021) | 46.7% | 26.2% | 25.8% | ranked 19 of 307 | |
| Vacant dwellings (2021) | 16.1% | 17.4% | 13.1% | ranked 79 of 307 | |
| Owner-occupied usual residences (2021) | 86.5% | 72.2% | 77.8% | ranked 34 of 307 | |
| Rented usual residences (2021) | 7.5% | 19.4% | 13.6% | ranked 259 of 307 | |
| Usual residences in buildings with 3 or more dwellings (2021) | 1.9% | 21.0% | 13.8% | ranked 293 of 307 | |
| Median selling price of housing per m² (2025) | 500 €/m² | – | 1,108 €/m² | ranked 266 of 305 |
Energy
| Indicator | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Usual residences without heating (2021) | 9.2% | 12.7% | 18.6% | ranked 270 of 307 | |
| Usual residences with central heating (2021) | 6.4% | 4.8% | 12.6% | ranked 202 of 307 | |
| Electricity consumption per inhabitant (2024) | 3,233 kWh/inh. | 4,687 kWh/inh. | 3,690 kWh/inh. | ranked 216 of 307 |
Economy
| Indicator | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Enterprises (2023) | 782 | 13,328 | 1,510,274 | ranked 248 of 308 | |
| Enterprises per 1,000 inhabitants (2023) | 132.0 | 123.1 | 128.1 | ranked 138 of 307 | |
| Declared gross income per inhabitant (2024) | 11,436 € | 11,195 € | 10,553 € | ranked 96 of 307 | |
| Purchasing power per capita (Portugal = 100) (2023) | 78.4 | 86.5 | 79.5 | ranked 159 of 307 |
Employment
| Indicator | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Unemployment rate (2021) | 7.5% | 7.6% | 7.0% | ranked 122 of 307 | |
| Average monthly earnings of employees (2024) | 1,122 € | – | 1,258 € | ranked 278 of 307 |
Tourism
| Indicator | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Overnight stays in tourist accommodation (2025) | 24,160 | 480,475 | 82,011,658 | ranked 193 of 307 | |
| Overnight stays per 100 inhabitants (2025) | 404.4 | 442.6 | 275.0 | ranked 118 of 306 |
Education
| Indicator | Nisa | Portalegre | National | Position | Rank |
|---|---|---|---|---|---|
| Population with completed higher education (2021) | 11.9% | 15.0% | 13.2% | ranked 196 of 307 |
Sunshine and temperatures: Nisa
Business sectors: Nisa
Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.
- Agriculture, forestry and fishing26.9% ×3.4
- Wholesale and retail trade15.3% ×1.1
- Administrative and support services11.0% ×0.7
- Manufacturing8.8% ×1.9
- Accommodation and food services8.8% ×1.1
- Construction7.0% ×1.0
- Professional, scientific and technical6.3% ×0.6
- Health and social work4.7% ×0.6
Frequently asked questions
What is the population of Nisa?
Nisa has 6,008 residents (2025), ranking 237 of 308 municipalities.
How big is Nisa?
Nisa covers 575.7 km², with a density of 10 people per km².
Is the population of Nisa growing?
Between 2021 and 2025, the population of Nisa went from 5,931 to 6,008, a change of +1.3%.
Where is Nisa?
Nisa is in Portalegre. Latitude 39.517, longitude −7.650.
Usual residences in buildings with 3 or more dwellings: what is the figure for Nisa?
In Nisa, “Usual residences in buildings with 3 or more dwellings” stands at 1.9% (2021), ranking 293 of 307 municipalities; the national median is 13.8%.
Population under 15: what is the figure for Nisa?
In Nisa, “Population under 15” stands at 8.9% (2025), ranking 278 of 307 municipalities; the national median is 11.7%.
How much electricity does a solar panel produce in Nisa?
In Nisa, a 1 kWp south-facing system tilted at 35° produces about 1,592 kWh a year.
Which municipalities border Nisa?
The nearest to Nisa are Vila Velha de Ródão (15 km), Castelo de Vide (20 km), Gavião (25 km), Crato (26 km), Marvão (27 km).
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