Postcode area · Olten · Solothurn
4600 Olten (Olten): key figures
4600 Olten (postcode area in Olten) has 19,162 residents in 2025 across 11.2 km², or 1,708 people per km². Population: +8.4% between 2015 and 2025.
- 19,162 residents
- 11.2 km²
- 1,708 people/km²
4600 Olten in numbers
Population
19,162
ranked 72 of 2,275
+8.4%between 2015 and 2025
2015–2025
Population density
1,708people/km²
ranked 191 of 2,275
Area
11.2km²
ranked 1,003 of 3,168
Share of foreign nationals
32.8%
ranked 327 of 2,040
Dwellings
11,138
ranked 59 of 3,164
Residential buildings
3,103
ranked 18 of 3,160
Dwellings in buildings built before 1946
31.4%
ranked 1,350 of 3,164
Key points
Nationally, 4600 Olten ranks No. 72 of 2,275 postcode areas.
Population of 4600 Olten over time
Population, 2015–2025
4600 Olten had 17,677 residents in 2015 and 19,162 in 2025.
| Year | Population |
|---|---|
| 2015 | 17,677 |
| 2020 | 18,362 |
| 2023 | 18,547 |
| 2025 | 19,162 |
All indicators for 4600 Olten
Next to the value for 4600 Olten: all postcode areas of Olten, then of the whole country (totals for counts, weighted averages for rates).
4600 OltenNational medianHover over or tap a bar to see what it shows.
Housing
| Indicator | 4600 Olten | Olten | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 11,138 | – | – | ranked 59 of 3,164 | ||
| Residential buildings (2026) | 3,103 | – | – | ranked 18 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 31.4% | 31.4% | 23.2% | ranked 1,350 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 14.9% | 14.9% | 23.6% | ranked 2,206 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 53.8% | 53.8% | 63.5% | ranked 2,684 of 3,160 |
Energy
| Indicator | 4600 Olten | Olten | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 87.1% | 87.1% | 56.2% | ranked 39 of 3,160 | ||
| Heat pumps as main heating (2026) | 4.8% | 4.8% | 16.2% | ranked 2,721 of 3,160 | ||
| Wood heating systems (2026) | 0.8% | 0.8% | 13.5% | ranked 3,092 of 3,160 | ||
| District heating (2026) | 3.2% | 3.2% | 5.6% | ranked 891 of 3,160 |
Society
| Indicator | 4600 Olten | Olten | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 32.8% | 32.8% | 29.8% | ranked 327 of 2,040 |
Where is 4600 Olten?
Frequently asked questions
What is the population of 4600 Olten (Olten)?
4600 Olten has 19,162 residents in 2025. It covers 11.2 km², or 1,708 people per km².
Where is 4600 Olten?
4600 Olten (postcode area) is part of Olten, in Solothurn.
What is the value of “Share of foreign nationals” in 4600 Olten?
Share of foreign nationals: 32.8% (2025), ranked 327 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4600 Olten?
Dwellings: 11,138 (2026), ranked 59 of 3,164 postcode areas in the country.