Gränichen: population and statistics
Gränichen has a population of 8,699 (2025) across 17.2 km², or 506 people per km². It ranks 229 of 2,115 municipalities by population. Its population is growing: +17.0% between 2015 and 2025.
- 8,699 residents
- 17.2 km²
- 506 people/km²
- 412 m
Key points
Among the 197 municipalities in Aargau, Gränichen ranks No. 22 by population.
Entities in the commercial register per 1,000 inhabitants: 42.6 in Gränichen, compared with an average of 62.0 in Aargau and 83.6 nationally.
Oil or gas heating systems: 75.4% in Gränichen, compared with an average of 66.6% in Aargau and 61.7% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,150 kWh a year here.
Gränichen in numbers
Where is Gränichen?
Population of Gränichen over time
Gränichen had 7,432 residents in 2015 and 8,699 in 2025.
| Year | Population |
|---|---|
| 2020 | 8,147 |
| 2021 | 8,386 |
| 2022 | 8,432 |
| 2023 | 8,625 |
| 2024 | 8,692 |
| 2025 | 8,699 |
Did you know?
- “Entities in the commercial register per 1,000 inhabitants”: lower than in 95% of municipalities.
- Its area is roughly equal to 2,410 football pitches.
- Its population density is 2.2 times the national average.
- The nearest municipality is Suhr, 2.3 km away.
- The nearest more populous municipality is Aarau (22,932 residents), 5.6 km away.
- A 4 kWp rooftop solar system here would generate about 4,600 kWh a year, roughly what an average household uses.
All indicators for Gränichen
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 | Gränichen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 20.6% | 19.5% | 20.7% | ranked 927 of 1,811 |
Housing
| Indicator | Gränichen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 3,932 | 355,613 | 4,927,050 | ranked 272 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 18.1% | 16.6% | 23.3% | ranked 1,176 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 34.0% | 30.9% | 25.3% | ranked 380 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 78.1% | 70.4% | 69.5% | ranked 335 of 1,806 |
Energy
| Indicator | Gränichen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 75.4% | 66.6% | 53.5% | ranked 201 of 1,806 | |
| Heat pumps as main heating (2026) | 8.3% | 11.6% | 13.7% | ranked 1,376 of 1,806 | |
| Wood heating systems (2026) | 9.6% | 8.3% | 12.4% | ranked 1,091 of 1,806 | |
| District heating (2026) | 0.7% | 6.5% | 1.4% | ranked 1,146 of 1,806 | |
| Photovoltaic installations (2026) | 329 | 26,039 | 329,600 | ranked 235 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 886.0 kW | 997.1 kW | 1,134 kW | ranked 1,264 of 1,806 | |
| Rooftop solar electricity potential (2026) | 54.4 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 277 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 6,257 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,499 of 1,810 |
Economy
| Indicator | Gränichen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 398 | 47,193 | 728,011 | ranked 359 of 2,112 | |
| Entities listed in the commercial register (2026) | 371 | 46,143 | 762,757 | ranked 406 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 42.6 | 62.0 | 64.9 | ranked 1,717 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 63.6% | 66.6% | 65.7% | ranked 1,091 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 33.7% | 29.1% | 29.0% | ranked 500 of 1,808 |
Employment
| Indicator | Gränichen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 2,900 | 364,295 | 5,679,518 | ranked 339 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 333.4 | 489.8 | 362.9 | ranked 1,019 of 1,810 | |
| Share of jobs in services (2024) | 52.1% | 69.1% | 63.6% | ranked 1,288 of 1,804 | |
| Share of jobs in industry and construction (2024) | 45.1% | 26.5% | 24.2% | ranked 195 of 1,776 |
Society
| Indicator | Gränichen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 25.5% | 28.1% | 18.9% | ranked 503 of 1,811 |
Sunshine and temperatures: Gränichen
Frequently asked questions
What is the population of Gränichen?
Gränichen has 8,699 residents (2025), ranking 229 of 2,115 municipalities.
How big is Gränichen?
Gränichen covers 17.2 km², with a density of 506 people per km².
Is the population of Gränichen growing?
Between 2015 and 2025, the population of Gränichen went from 7,432 to 8,699, a change of +17.0%.
Where is Gränichen?
Gränichen is in Aargau. It belongs to Bezirk Aarau (district). Latitude 47.358, longitude 8.100.
Entities in the commercial register per 1,000 inhabitants: what is the figure for Gränichen?
In Gränichen, “Entities in the commercial register per 1,000 inhabitants” stands at 42.6 (2026), ranking 1,717 of 1,811 municipalities; the national median is 64.9.
Oil or gas heating systems: what is the figure for Gränichen?
In Gränichen, “Oil or gas heating systems” stands at 75.4% (2026), ranking 201 of 1,806 municipalities; the national median is 53.5%.
How much electricity does a solar panel produce in Gränichen?
In Gränichen, a 1 kWp south-facing system tilted at 37° produces about 1,150 kWh a year.
Which municipalities border Gränichen?
The nearest to Gränichen are Suhr (2.3 km), Teufenthal (AG) (3.2 km), Hunzenschwil (3.7 km), Oberentfelden (3.9 km), Buchs (AG) (3.9 km).