Porrentruy: population and statistics
Porrentruy has a population of 6,597 (2025) across 14.8 km², or 447 people per km². It ranks 312 of 2,115 municipalities by population. Its population is falling: −3.4% between 2015 and 2025.
- 6,597 residents
- 14.8 km²
- 447 people/km²
- 430 m
Key points
Among the 50 municipalities in Jura, Porrentruy ranks No. 3 by population.
District heating: 30.4% in Porrentruy, compared with an average of 4.1% in Jura and 7.3% nationally.
Jobs per 1,000 inhabitants: 1,155 in Porrentruy, compared with an average of 632.5 in Jura and 622.5 nationally.
A 1 kWp solar panel tilted at 38° generates about 1,148 kWh a year here.
Porrentruy in numbers
Where is Porrentruy?
Population of Porrentruy over time
Porrentruy had 6,829 residents in 2015 and 6,597 in 2025.
| Year | Population |
|---|---|
| 2020 | 6,434 |
| 2021 | 6,466 |
| 2022 | 6,441 |
| 2023 | 6,601 |
| 2024 | 6,574 |
| 2025 | 6,597 |
Did you know?
- Number 1 in Jura for “District heating”.
- Number 1 in Jura for “Share of jobs in services”.
- “District heating”: higher than in 98% of municipalities.
- “Jobs per 1,000 inhabitants”: higher than in 97% of municipalities.
- “Entities in the commercial register per 1,000 inhabitants”: higher than in 96% of municipalities.
- Its area is roughly equal to 2,067 football pitches.
- The nearest municipality is Fontenais, 1.9 km away.
All indicators for Porrentruy
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 | Porrentruy | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 26.5% | 23.3% | 20.7% | ranked 165 of 1,811 |
Housing
| Indicator | Porrentruy | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 4,402 | 42,518 | 4,927,050 | ranked 237 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 40.4% | 31.6% | 23.3% | ranked 272 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 12.9% | 20.0% | 25.3% | ranked 1,605 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 65.7% | 75.3% | 69.5% | ranked 1,107 of 1,806 |
Energy
| Indicator | Porrentruy | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 37.7% | 57.3% | 53.5% | ranked 1,426 of 1,806 | |
| Heat pumps as main heating (2026) | 25.1% | 19.5% | 13.7% | ranked 377 of 1,806 | |
| Wood heating systems (2026) | 2.2% | 13.2% | 12.4% | ranked 1,689 of 1,806 | |
| District heating (2026) | 30.4% | 4.1% | 1.4% | ranked 32 of 1,806 | |
| Photovoltaic installations (2026) | 371 | 5,556 | 329,600 | ranked 187 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,431 kW | 1,771 kW | 1,134 kW | ranked 605 of 1,806 | |
| Rooftop solar electricity potential (2026) | 62.7 GWh/year | 1,000.0 GWh/year | 64,783 GWh/year | ranked 219 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 9,504 kWh/inh. | 13,301 kWh/inh. | 9,356 kWh/inh. | ranked 877 of 1,810 |
Economy
| Indicator | Porrentruy | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 836 | 6,862 | 728,011 | ranked 142 of 2,112 | |
| Entities listed in the commercial register (2026) | 885 | 6,411 | 762,757 | ranked 148 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 134.2 | 85.3 | 64.9 | ranked 71 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 70.2% | 63.0% | 65.7% | ranked 503 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 24.9% | 31.4% | 29.0% | ranked 1,278 of 1,808 |
Employment
| Indicator | Porrentruy | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 7,621 | 47,549 | 5,679,518 | ranked 117 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 1,155 | 632.5 | 362.9 | ranked 60 of 1,810 | |
| Share of jobs in services (2024) | 76.0% | 51.6% | 63.6% | ranked 443 of 1,804 | |
| Share of jobs in industry and construction (2024) | 23.4% | 38.5% | 24.2% | ranked 920 of 1,776 |
Society
| Indicator | Porrentruy | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 22.7% | 16.5% | 18.9% | ranked 639 of 1,811 |
Sunshine and temperatures: Porrentruy
Frequently asked questions
What is the population of Porrentruy?
Porrentruy has 6,597 residents (2025), ranking 312 of 2,115 municipalities.
How big is Porrentruy?
Porrentruy covers 14.8 km², with a density of 447 people per km².
Is the population of Porrentruy growing?
Between 2015 and 2025, the population of Porrentruy went from 6,829 to 6,597, a change of −3.4%.
Where is Porrentruy?
Porrentruy is in Jura. It belongs to District de Porrentruy (district). Latitude 47.417, longitude 7.083.
District heating: what is the figure for Porrentruy?
In Porrentruy, “District heating” stands at 30.4% (2026), ranking 32 of 1,806 municipalities; the national median is 1.4%.
Jobs per 1,000 inhabitants: what is the figure for Porrentruy?
In Porrentruy, “Jobs per 1,000 inhabitants” stands at 1,155 (2024), ranking 60 of 1,810 municipalities; the national median is 362.9.
How much electricity does a solar panel produce in Porrentruy?
In Porrentruy, a 1 kWp south-facing system tilted at 38° produces about 1,148 kWh a year.
Which municipalities border Porrentruy?
The nearest to Porrentruy are Fontenais (1.9 km), Courchavon (3.1 km), Alle (3.6 km), Courtedoux (4.2 km), Courgenay (4.2 km).