Arni (AG): population and statistics
Arni (AG) has a population of 1,953 (2025) across 3.4 km², or 580 people per km². It ranks 984 of 2,115 municipalities by population. Its population is growing: +5.6% between 2015 and 2025.
- 1,953 residents
- 3.4 km²
- 580 people/km²
- 570 m
Key points
Among the 197 municipalities in Aargau, Arni (AG) ranks No. 111 by population.
District heating: 0.0% in Arni (AG), compared with an average of 6.5% in Aargau and 7.3% nationally.
Dwellings in buildings built before 1946: 5.8% in Arni (AG), compared with an average of 16.6% in Aargau and 22.4% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,146 kWh a year here.
Arni (AG) in numbers
Where is Arni (AG)?
Population of Arni (AG) over time
Arni (AG) had 1,849 residents in 2015 and 1,953 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,888 |
| 2021 | 1,887 |
| 2022 | 1,886 |
| 2023 | 1,898 |
| 2024 | 1,987 |
| 2025 | 1,953 |
Did you know?
- “District heating”: lower than in 99% of municipalities.
- “Dwellings in buildings built before 1946”: lower than in 97% of municipalities.
- “Jobs per 1,000 inhabitants”: lower than in 95% of municipalities.
- Its area is roughly equal to 472 football pitches.
- Its population density is 2.5 times the national average.
- The nearest municipality is Islisberg, 1.4 km away.
- The nearest more populous municipality is Hedingen (3,983 residents), 3.1 km away.
All indicators for Arni (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 | Arni (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 20.1% | 19.5% | 20.7% | ranked 1,022 of 1,811 |
Housing
| Indicator | Arni (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 885 | 355,613 | 4,927,050 | ranked 1,115 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 5.8% | 16.6% | 23.3% | ranked 1,756 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 41.2% | 30.9% | 25.3% | ranked 119 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 81.3% | 70.4% | 69.5% | ranked 166 of 1,806 |
Energy
| Indicator | Arni (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 69.6% | 66.6% | 53.5% | ranked 369 of 1,806 | |
| Heat pumps as main heating (2026) | 22.1% | 11.6% | 13.7% | ranked 472 of 1,806 | |
| Wood heating systems (2026) | 5.6% | 8.3% | 12.4% | ranked 1,388 of 1,806 | |
| District heating (2026) | 0.0% | 6.5% | 1.4% | ranked 1,506 of 1,806 | |
| Photovoltaic installations (2026) | 114 | 26,039 | 329,600 | ranked 961 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,108 kW | 997.1 kW | 1,134 kW | ranked 938 of 1,806 | |
| Rooftop solar electricity potential (2026) | 12.7 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 1,369 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 6,487 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,463 of 1,810 |
Economy
| Indicator | Arni (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 124 | 47,193 | 728,011 | ranked 1,098 of 2,112 | |
| Entities listed in the commercial register (2026) | 149 | 46,143 | 762,757 | ranked 924 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 76.3 | 62.0 | 64.9 | ranked 531 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 61.1% | 66.6% | 65.7% | ranked 1,296 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 34.9% | 29.1% | 29.0% | ranked 400 of 1,808 |
Employment
| Indicator | Arni (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 296 | 364,295 | 5,679,518 | ranked 1,426 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 151.6 | 489.8 | 362.9 | ranked 1,722 of 1,810 | |
| Share of jobs in services (2024) | 67.2% | 69.1% | 63.6% | ranked 760 of 1,804 | |
| Share of jobs in industry and construction (2024) | 27.0% | 26.5% | 24.2% | ranked 758 of 1,776 |
Society
| Indicator | Arni (AG) | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 13.5% | 28.1% | 18.9% | ranked 1,297 of 1,811 |
Sunshine and temperatures: Arni (AG)
Frequently asked questions
What is the population of Arni (AG)?
Arni (AG) has 1,953 residents (2025), ranking 984 of 2,115 municipalities.
How big is Arni (AG)?
Arni (AG) covers 3.4 km², with a density of 580 people per km².
Is the population of Arni (AG) growing?
Between 2015 and 2025, the population of Arni (AG) went from 1,849 to 1,953, a change of +5.6%.
Where is Arni (AG)?
Arni (AG) is in Aargau. It belongs to Bezirk Bremgarten (district). Latitude 47.319, longitude 8.422.
District heating: what is the figure for Arni (AG)?
In Arni (AG), “District heating” stands at 0.0% (2026), ranking 1,506 of 1,806 municipalities; the national median is 1.4%.
Dwellings in buildings built before 1946: what is the figure for Arni (AG)?
In Arni (AG), “Dwellings in buildings built before 1946” stands at 5.8% (2026), ranking 1,756 of 1,806 municipalities; the national median is 23.3%.
How much electricity does a solar panel produce in Arni (AG)?
In Arni (AG), a 1 kWp south-facing system tilted at 37° produces about 1,146 kWh a year.
Which municipalities border Arni (AG)?
The nearest to Arni (AG) are Islisberg (1.4 km), Oberlunkhofen (2.0 km), Aesch (ZH) (2.3 km), Jonen (3.0 km), Unterlunkhofen (3.1 km).