5004 Aarau (Aarau): key figures
5004 Aarau (postcode area in Aarau) has 2,373 residents in 2025 across 0.2 km², or 12,490 people per km². By population, 5004 Aarau ranks No. 3 of 3 postcode areas in Aarau. Population: −0.2% between 2015 and 2025.
- 2,373 residents
- 0.2 km²
- 12,490 people/km²
5004 Aarau in numbers
Key points
By population, 5004 Aarau ranks No. 3 of 3 postcode areas in Aarau.
Nationally, 5004 Aarau ranks No. 930 of 2,275 postcode areas.
Population of 5004 Aarau over time
5004 Aarau had 2,377 residents in 2015 and 2,373 in 2025.
| Year | Population |
|---|---|
| 2015 | 2,377 |
| 2020 | 2,062 |
| 2023 | 2,375 |
| 2025 | 2,373 |
All indicators for 5004 Aarau
Next to the value for 5004 Aarau: all postcode areas of Aarau, then of the whole country (totals for counts, weighted averages for rates).
Housing
| Indicator | 5004 Aarau | Aarau | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 1,260 | – | – | ranked 3 of 3 | ranked 964 of 3,164 | |
| Residential buildings (2026) | 51 | – | – | ranked 3 of 3 | ranked 3,106 of 3,160 | |
| Dwellings in buildings built before 1946 (2026) | 13.3% | 25.9% | 23.2% | ranked 3 of 3 | ranked 2,664 of 3,164 | |
| Dwellings in buildings built since 2001 (2026) | 0.0% | 25.1% | 23.6% | ranked 3 of 3 | ranked 3,141 of 3,164 | |
| Share of detached houses among residential buildings (2026) | 0.0% | 59.4% | 63.5% | ranked 3 of 3 | ranked 3,158 of 3,160 |
Energy
| Indicator | 5004 Aarau | Aarau | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 31.4% | 67.3% | 56.2% | ranked 3 of 3 | ranked 2,503 of 3,160 | |
| Heat pumps as main heating (2026) | 0.0% | 21.8% | 16.2% | ranked 3 of 3 | ranked 3,120 of 3,160 | |
| Wood heating systems (2026) | 0.0% | 2.4% | 13.5% | ranked 3 of 3 | ranked 3,150 of 3,160 | |
| District heating (2026) | 68.6% | 6.2% | 5.6% | ranked 1 of 3 | ranked 10 of 3,160 |
Society
| Indicator | 5004 Aarau | Aarau | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 38.5% | 24.1% | 29.8% | ranked 1 of 3 | ranked 164 of 2,040 |
Where is 5004 Aarau?
Other postcode areas in Aarau
Postcode areas near 5004 Aarau
- 5032 Aarau Rohr4,264 residents
- 5000 Aarau16,141 residents
- 5022 RombachKüttigen
- 5033 Buchs AGBuchs (AG)
- 5024 KüttigenKüttigen
- 5023 BibersteinBiberstein
Previous in alphabetical order: 5000 Aarau
Next in alphabetical order: 5032 Aarau Rohr
Frequently asked questions
What is the population of 5004 Aarau (Aarau)?
5004 Aarau has 2,373 residents in 2025. It covers 0.2 km², or 12,490 people per km².
Where is 5004 Aarau?
5004 Aarau (postcode area) is part of Aarau, in Aargau.
What is the value of “Share of foreign nationals” in 5004 Aarau?
Share of foreign nationals: 38.5% (2025), ranked 164 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 5004 Aarau?
Dwellings: 1,260 (2026), ranked 964 of 3,164 postcode areas in the country.