Location map: Fronteira
Municipality · PortalegreCoat of arms of FronteiraFlag of Fronteira

Fronteira: population and statistics

Fronteira has a population of 2,957 (2025) across 248.6 km², or 11.9 people per km². It ranks 295 of 308 municipalities by population. Its population is growing: +0.7% between 2021 and 2025.

  • 2,957 residents
  • 248.6 km²
  • 12 people/km²
  • 228 m

Key points

Among the 15 municipalities in Portalegre, Fronteira ranks No. 12 by population.

Buildings built since 2001: 9.4% in Fronteira, compared with an average of 13.2% in Portalegre and 17.3% nationally.

Largest business sector: Agriculture, forestry and fishing, with 35.3% of the area's businesses.

A 1 kWp solar panel tilted at 34° generates about 1,592 kWh a year here.

Fronteira in numbers

Population
2,957
ranked 295 of 308 +0.7%
Population density
12people/km²
ranked 274 of 307
Area
249km²
ranked 127 of 308
Elevation
228m
ranked 121 of 308
Buildings built since 2001
9.4%
ranked 302 of 307
Enterprises
468
ranked 286 of 308
Overnight stays in tourist accommodation
5,851
ranked 280 of 307
Population density (inhabitants per km²)
11.9inh./km²
ranked 274 of 307

Where is Fronteira?

Population of Fronteira over time

2,9242,9582,9923,0262021: 2,9362022: 2,9712023: 3,0142024: 2,9872025: 2,957202120232025

Fronteira had 2,936 residents in 2021 and 2,957 in 2025.

YearPopulation
20212,936
20222,971
20233,014
20242,987
20252,957

Did you know?

All indicators for Fronteira

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

IndicatorFronteiraPortalegreNationalPositionRank
Population aged 65 and over (2025)33.6%29.4%26.9%ranked 63 of 307
Population under 15 (2025)9.8%11.8%11.7%ranked 248 of 307
Ageing index (older people per 100 young people) (2025)343.6–229.9ranked 60 of 307
Population density (inhabitants per km²) (2025)11.9 inh./km²–69.6 inh./km²ranked 274 of 307
Population change between 2021 and 2025 (2025)0.72%–4.50%ranked 243 of 307

Housing

IndicatorFronteiraPortalegreNationalPositionRank
Buildings (2021)2,45467,4443,573,416ranked 294 of 308
Buildings built before 1946 (2021)24.2%23.9%12.8%ranked 39 of 307
Buildings built since 2001 (2021)9.4%13.2%16.8%ranked 302 of 307
Buildings in need of medium or extensive repair (2021)8.8%12.9%14.2%ranked 273 of 307
Conventional family dwellings (2021)2,56581,1175,970,677ranked 295 of 308
Dwellings used as secondary residences (2021)35.6%26.2%25.8%ranked 88 of 307
Vacant dwellings (2021)17.7%17.4%13.1%ranked 49 of 307
Owner-occupied usual residences (2021)76.8%72.2%77.8%ranked 166 of 307
Rented usual residences (2021)16.0%19.4%13.6%ranked 118 of 307
Usual residences in buildings with 3 or more dwellings (2021)2.2%21.0%13.8%ranked 289 of 307
Median selling price of housing per m² (2025)564 €/m²–1,108 €/m²ranked 260 of 305

Energy

IndicatorFronteiraPortalegreNationalPositionRank
Usual residences without heating (2021)16.9%12.7%18.6%ranked 177 of 307
Usual residences with central heating (2021)4.2%4.8%12.6%ranked 247 of 307
Electricity consumption per inhabitant (2024)3,746 kWh/inh.4,687 kWh/inh.3,690 kWh/inh.ranked 149 of 307

Economy

IndicatorFronteiraPortalegreNationalPositionRank
Enterprises (2023)46813,3281,510,274ranked 286 of 308
Enterprises per 1,000 inhabitants (2023)155.3123.1128.1ranked 64 of 307
Declared gross income per inhabitant (2024)11,220 €11,195 €10,553 €ranked 112 of 307
Purchasing power per capita (Portugal = 100) (2023)77.586.579.5ranked 165 of 307

Employment

IndicatorFronteiraPortalegreNationalPositionRank
Unemployment rate (2021)6.3%7.6%7.0%ranked 192 of 307
Average monthly earnings of employees (2024)1,211 €–1,258 €ranked 204 of 307

Tourism

IndicatorFronteiraPortalegreNationalPositionRank
Overnight stays in tourist accommodation (2025)5,851480,47582,011,658ranked 280 of 307
Overnight stays per 100 inhabitants (2025)196.9442.6275.0ranked 195 of 306
Share of overnight stays in local accommodation (alojamento local) (2025)16.1%–18.4%ranked 101 of 178

Education

IndicatorFronteiraPortalegreNationalPositionRank
Population with completed higher education (2021)12.1%15.0%13.2%ranked 192 of 307

Sunshine and temperatures: Fronteira

Annual solar output
1,592kWh
for 1 kWp tilted at 34°
Warmest month
25.5°C
August
Coldest month
8.7°C
January
Most productive month
168kWh
July

Jan: 102 kWhJanFeb: 112 kWhFebMar: 134 kWhMarApr: 139 kWhAprMay: 153 kWhMayJun: 153 kWhJunJul: 168 kWhJulAug: 167 kWhAugSep: 146 kWhSepOct: 123 kWhOctNov: 100 kWhNovDec: 95 kWhDec0 °CJan: 8.7 °CFeb: 9.9 °CMar: 12.3 °CApr: 14.9 °CMay: 18.8 °CJun: 22.3 °CJul: 25.1 °CAug: 25.5 °CSep: 22.2 °COct: 18.2 °CNov: 12.3 °CDec: 9.9 °C
Monthly solar output (kWh per 1 kWp)Average temperature (°C)

Business sectors: Fronteira

Share of each sector in total businesses; “×1.5” means the sector is 1.5 times more common than nationally.

Frequently asked questions

What is the population of Fronteira?

Fronteira has 2,957 residents (2025), ranking 295 of 308 municipalities.

How big is Fronteira?

Fronteira covers 248.6 km², with a density of 12 people per km².

Is the population of Fronteira growing?

Between 2021 and 2025, the population of Fronteira went from 2,936 to 2,957, a change of +0.7%.

Where is Fronteira?

Fronteira is in Portalegre. Latitude 39.050, longitude −7.650.

Buildings built since 2001: what is the figure for Fronteira?

In Fronteira, “Buildings built since 2001” stands at 9.4% (2021), ranking 302 of 307 municipalities; the national median is 16.8%.

Enterprises: what is the figure for Fronteira?

In Fronteira, “Enterprises” stands at 468 (2023), ranking 286 of 308 municipalities; the national median is 1,858.

How much electricity does a solar panel produce in Fronteira?

In Fronteira, a 1 kWp south-facing system tilted at 34° produces about 1,592 kWh a year.

Which municipalities border Fronteira?

The nearest to Fronteira are Sousel (11 km), Alter do Chão (17 km), Monforte (19 km), Avis (20 km), Estremoz (24 km).

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