Postcode area · Aarau · Aargau
The postcode areas of Aarau in numbers
Aarau has 3 postcode areas and 22,778 residents in 2025, with population, density and indicators for each.
- 3 postcode areas
- 22,778 residents
List of postcode areas in Aarau
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| Postcode area | Population | Population density | Area | Share of foreign nationals | Dwellings |
|---|---|---|---|---|---|
| 5000 Aarau | 16,141 | 1,810 people/km² | 8.9 km² | 21.1% | 9,325 |
| 5032 Aarau Rohr | 4,264 | 1,292 people/km² | 3.3 km² | 27.3% | 2,140 |
| 5004 Aarau | 2,373 | 12,490 people/km² | 0.2 km² | 38.5% | 1,260 |
Frequently asked questions
How many postcode areas does Aarau have?
Aarau has 3 postcode areas. Largest by population: 5000 Aarau (16,141 residents).