Grandfontaine: population and statistics
Grandfontaine has a population of 362 (2025) across 9.0 km², or 40.4 people per km². It ranks 1,922 of 2,115 municipalities by population. Its population is falling: −7.7% between 2015 and 2025.
- 362 residents
- 9.0 km²
- 40 people/km²
- 641 m
Key points
Among the 50 municipalities in Jura, Grandfontaine ranks No. 40 by population.
A 1 kWp solar panel tilted at 38° generates about 1,153 kWh a year here.
Grandfontaine in numbers
Where is Grandfontaine?
Population of Grandfontaine over time
Grandfontaine had 392 residents in 2015 and 362 in 2025.
| Year | Population |
|---|---|
| 2020 | 387 |
| 2021 | 390 |
| 2022 | 391 |
| 2023 | 381 |
| 2024 | 378 |
| 2025 | 362 |
Did you know?
- Number 1 in Jura for “Share of single-family houses among residential buildings”.
- “Entities listed in the commercial register”: lower than in 92% of municipalities.
- “Dwellings”: lower than in 91% of municipalities.
- Its area is roughly equal to 1,256 football pitches.
- Its population density is 5.8 times lower than the national average.
- The nearest municipality is Fahy, 3.9 km away.
- The nearest more populous municipality is Haute-Ajoie (1,063 residents), 5.0 km away.
All indicators for Grandfontaine
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 | Grandfontaine | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 27.1% | 23.3% | 20.7% |
Housing
| Indicator | Grandfontaine | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 213 | 42,518 | 4,927,050 | ranked 1,911 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 35.7% | 31.6% | 23.3% | ||
| Dwellings in buildings built since 2001 (2026) | 16.4% | 20.0% | 25.3% | ||
| Share of single-family houses among residential buildings (2026) | 94.4% | 75.3% | 69.5% |
Energy
| Indicator | Grandfontaine | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 49.4% | 57.3% | 53.5% | ||
| Heat pumps as main heating (2026) | 12.1% | 19.5% | 13.7% | ||
| Wood heating systems (2026) | 25.9% | 13.2% | 12.4% | ||
| District heating (2026) | 0.0% | 4.1% | 1.4% | ||
| Photovoltaic installations (2026) | 43 | 5,556 | 329,600 | ranked 1,657 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 2,845 kW | 1,771 kW | 1,134 kW | ||
| Rooftop solar electricity potential (2026) | 10.1 GWh/year | 1,000.0 GWh/year | 64,783 GWh/year | ranked 1,551 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 27,956 kWh/inh. | 13,301 kWh/inh. | 9,356 kWh/inh. |
Economy
| Indicator | Grandfontaine | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 33 | 6,862 | 728,011 | ranked 1,875 of 2,112 | |
| Entities listed in the commercial register (2026) | 20 | 6,411 | 762,757 | ranked 1,924 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 55.2 | 85.3 | 64.9 | ||
| Share of limited companies (AG, GmbH) among registered entities (2026) | 70.0% | 63.0% | 65.7% | ||
| Share of sole proprietorships among registered entities (2026) | 30.0% | 31.4% | 29.0% |
Employment
| Indicator | Grandfontaine | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 106 | 47,549 | 5,679,518 | ranked 1,861 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 292.8 | 632.5 | 362.9 | ||
| Share of jobs in services (2024) | 33.0% | 51.6% | 63.6% | ||
| Share of jobs in industry and construction (2024) | 31.1% | 38.5% | 24.2% |
Society
| Indicator | Grandfontaine | Jura | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 5.2% | 16.5% | 18.9% |
Sunshine and temperatures: Grandfontaine
Frequently asked questions
What is the population of Grandfontaine?
Grandfontaine has 362 residents (2025), ranking 1,922 of 2,115 municipalities.
How big is Grandfontaine?
Grandfontaine covers 9.0 km², with a density of 40 people per km².
Is the population of Grandfontaine growing?
Between 2015 and 2025, the population of Grandfontaine went from 392 to 362, a change of −7.7%.
Where is Grandfontaine?
Grandfontaine is in Jura. It belongs to District de Porrentruy (district). Latitude 47.383, longitude 6.933.
Entities listed in the commercial register: what is the figure for Grandfontaine?
In Grandfontaine, “Entities listed in the commercial register” stands at 20 (2026), ranking 1,924 of 2,115 municipalities; the national median is 118.
Dwellings: what is the figure for Grandfontaine?
In Grandfontaine, “Dwellings” stands at 213 (2026), ranking 1,911 of 2,108 municipalities; the national median is 990.
How much electricity does a solar panel produce in Grandfontaine?
In Grandfontaine, a 1 kWp south-facing system tilted at 38° produces about 1,153 kWh a year.
Which municipalities border Grandfontaine?
The nearest to Grandfontaine are Fahy (3.9 km), Haute-Ajoie (5.0 km), Bure (7.8 km), Courtedoux (7.8 km), Courchavon (10 km).