About Porrentruy
Porrentruy is a Swiss municipality in the canton of Jura. It is the seat of the district of Porrentruy. In 2018 the municipality had a population of 6,675.
- Canton
- Jura
- Area
- 14.8 km²
Population
6'574residents
Median taxable income
CHF 55'095
Vacancy
4.09%
Foreign residents
22.2%
Dwellings
4'254
Jobs (FTE)
6'913
Tax multiplier
205%
Land use across the commune
Every 100 × 100 m of Porrentruy, coloured by how it's used. Drawn from the BFS Arealstatistik 2025 release — the most recent nationwide snapshot.
Source BFS Arealstatistik
Loading statistics …
Jobs & economy
6'913 full-time-equivalent jobs across 821 businesses — services make up 77% of employment, industry 22% (2018).
Source BFS STATENT
6'913FTE total
Primary0.8%
Secondary22.0%
Tertiary77.2%
Land use
24% built-up, 34% agricultural, 40% forest. Measured across 1'479 hectares (2018).
Source BFS Arealstatistik
Settlement24.7%
Agriculture34.8%
Forest40.5%
Water0.0%
Election Results
Mitte led the 2023 National Council election with 31.8%, ahead of SP at 31.2%.
Source BFS
Mitte31.8%
SP31.2%+5.2 pp
SVP11.8%+2.5 pp
FDP11.4%−0.8 pp
Grüne10.4%−6.8 pp
GLP2.1%
EVP0.1%−0.3 pp
2023 vs 2019
Primary / second-home mix
81.7% of dwellings are primary residences; 18.3% are second homes (2026).
Source BFS
Primary residences81.7%
Second homes18.3%
Climate data
Annual mean 9.4°C with 1'046 mm of rain. Warmest in July (18.2°C), coldest in January (1.2°C). Station: Fahy, 596 m.
Source MeteoSchweiz
9.4°C
Annual mean
Mean 9.4°C
Rain 1046 mm
Sun ≈142 days
Fahy · 596 m.a.s.l. · 1991–2020 normals
Warming trend
Mean annual temperature at Chaumont has risen by +2.2°C between the first 30 observed years (1864–1893) and the most recent (1996–2025).
Source MeteoSchweiz NBCN
+2.2°C
mean 1996–2025 vs. 1864–1893
Chaumont · 1136 m.a.s.l. · 1864–2025
