Buchs (AG): population and statistics
Buchs (AG) has a population of 8,651 (2025) across 5.4 km², or 1,614 people per km². It ranks 231 of 2,115 municipalities by population. Its population is growing: +11.9% between 2015 and 2025.
- 8,651 residents
- 5.4 km²
- 1,614 people/km²
- 383 m
Key points
Among the 197 municipalities in Aargau, Buchs (AG) ranks No. 23 by population.
Oil or gas heating systems: 81.0% in Buchs (AG), compared with an average of 66.6% in Aargau and 61.7% nationally.
Share of foreign nationals: 37.9% in Buchs (AG), compared with an average of 28.1% in Aargau and 27.7% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,155 kWh a year here.
Buchs (AG) in numbers
Where is Buchs (AG)?
Population of Buchs (AG) over time
Buchs (AG) had 7,731 residents in 2015 and 8,651 in 2025.
| Year | Population |
|---|---|
| 2020 | 8,121 |
| 2021 | 8,270 |
| 2022 | 8,319 |
| 2023 | 8,429 |
| 2024 | 8,491 |
| 2025 | 8,651 |
Did you know?
- “Oil or gas heating systems”: higher than in 96% of municipalities.
- “Share of foreign nationals”: higher than in 95% of municipalities.
- “Jobs”: higher than in 92% of municipalities.
- Its area is roughly equal to 751 football pitches.
- Its population density is 6.9 times the national average.
- The nearest municipality is Suhr, 1.6 km away.
- The nearest more populous municipality is Aarau (22,932 residents), 2.3 km away.
All indicators for Buchs (AG)
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 | Buchs (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 17.0% | 19.5% | 20.7% | ranked 1,512 of 1,811 |
Housing
| Indicator | Buchs (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 3,911 | 355,613 | 4,927,050 | ranked 277 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 17.1% | 16.6% | 23.3% | ranked 1,236 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 28.4% | 30.9% | 25.3% | ranked 696 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 69.6% | 70.4% | 69.5% | ranked 899 of 1,806 |
Energy
| Indicator | Buchs (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 81.0% | 66.6% | 53.5% | ranked 77 of 1,806 | |
| Heat pumps as main heating (2026) | 9.2% | 11.6% | 13.7% | ranked 1,307 of 1,806 | |
| Wood heating systems (2026) | 2.3% | 8.3% | 12.4% | ranked 1,682 of 1,806 | |
| District heating (2026) | 1.8% | 6.5% | 1.4% | ranked 818 of 1,806 | |
| Photovoltaic installations (2026) | 231 | 26,039 | 329,600 | ranked 422 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 818.5 kW | 997.1 kW | 1,134 kW | ranked 1,343 of 1,806 | |
| Rooftop solar electricity potential (2026) | 52.8 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 295 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 6,103 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,526 of 1,810 |
Economy
| Indicator | Buchs (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 416 | 47,193 | 728,011 | ranked 341 of 2,112 | |
| Entities listed in the commercial register (2026) | 397 | 46,143 | 762,757 | ranked 376 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 45.9 | 62.0 | 64.9 | ranked 1,643 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 66.5% | 66.6% | 65.7% | ranked 839 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 29.2% | 29.1% | 29.0% | ranked 879 of 1,808 |
Employment
| Indicator | Buchs (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 5,704 | 364,295 | 5,679,518 | ranked 167 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 659.3 | 489.8 | 362.9 | ranked 240 of 1,810 | |
| Share of jobs in services (2024) | 61.1% | 69.1% | 63.6% | ranked 986 of 1,804 | |
| Share of jobs in industry and construction (2024) | 38.7% | 26.5% | 24.2% | ranked 319 of 1,776 |
Society
| Indicator | Buchs (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 37.9% | 28.1% | 18.9% | ranked 97 of 1,811 |
Sunshine and temperatures: Buchs (AG)
Frequently asked questions
What is the population of Buchs (AG)?
Buchs (AG) has 8,651 residents (2025), ranking 231 of 2,115 municipalities.
How big is Buchs (AG)?
Buchs (AG) covers 5.4 km², with a density of 1,614 people per km².
Is the population of Buchs (AG) growing?
Between 2015 and 2025, the population of Buchs (AG) went from 7,731 to 8,651, a change of +11.9%.
Where is Buchs (AG)?
Buchs (AG) is in Aargau. It belongs to Bezirk Aarau (district). Latitude 47.389, longitude 8.075.
Oil or gas heating systems: what is the figure for Buchs (AG)?
In Buchs (AG), “Oil or gas heating systems” stands at 81.0% (2026), ranking 77 of 1,806 municipalities; the national median is 53.5%.
Share of foreign nationals: what is the figure for Buchs (AG)?
In Buchs (AG), “Share of foreign nationals” stands at 37.9% (2025), ranking 97 of 1,811 municipalities; the national median is 18.9%.
How much electricity does a solar panel produce in Buchs (AG)?
In Buchs (AG), a 1 kWp south-facing system tilted at 37° produces about 1,155 kWh a year.
Which municipalities border Buchs (AG)?
The nearest to Buchs (AG) are Suhr (1.6 km), Aarau (2.3 km), Biberstein (2.9 km), Unterentfelden (3.3 km), Küttigen (3.6 km).