Postcode area · Riehen · Basel-Stadt
4125 Riehen (Riehen): key figures
4125 Riehen (postcode area in Riehen) has 22,677 residents in 2025 across 10.8 km², or 2,090 people per km². Population: +9.6% between 2015 and 2025.
- 22,677 residents
- 10.8 km²
- 2,090 people/km²
4125 Riehen in numbers
Population
22,677
ranked 43 of 2,275
+9.6%between 2015 and 2025
2015–2025
Population density
2,090people/km²
ranked 149 of 2,275
Area
10.8km²
ranked 1,042 of 3,168
Share of foreign nationals
30.0%
ranked 462 of 2,040
Dwellings
11,122
ranked 61 of 3,164
Residential buildings
4,270
ranked 4 of 3,160
Dwellings in buildings built before 1946
14.1%
ranked 2,601 of 3,164
Key points
Nationally, 4125 Riehen ranks No. 43 of 2,275 postcode areas.
Population of 4125 Riehen over time
Population, 2015–2025
4125 Riehen had 20,684 residents in 2015 and 22,677 in 2025.
| Year | Population |
|---|---|
| 2015 | 20,684 |
| 2020 | 21,653 |
| 2023 | 22,316 |
| 2025 | 22,677 |
All indicators for 4125 Riehen
Next to the value for 4125 Riehen: all postcode areas of Riehen, then of the whole country (totals for counts, weighted averages for rates).
4125 RiehenNational medianHover over or tap a bar to see what it shows.
Housing
| Indicator | 4125 Riehen | Riehen | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 11,122 | – | – | ranked 61 of 3,164 | ||
| Residential buildings (2026) | 4,270 | – | – | ranked 4 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 14.1% | 14.1% | 23.2% | ranked 2,601 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 14.4% | 14.4% | 23.6% | ranked 2,247 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 67.6% | 67.6% | 63.5% | ranked 1,788 of 3,160 |
Energy
| Indicator | 4125 Riehen | Riehen | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 44.8% | 44.8% | 56.2% | ranked 1,822 of 3,160 | ||
| Heat pumps as main heating (2026) | 15.3% | 15.3% | 16.2% | ranked 1,294 of 3,160 | ||
| Wood heating systems (2026) | 1.3% | 1.3% | 13.5% | ranked 3,028 of 3,160 | ||
| District heating (2026) | 37.8% | 37.8% | 5.6% | ranked 43 of 3,160 |
Society
| Indicator | 4125 Riehen | Riehen | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 30.0% | 30.0% | 29.8% | ranked 462 of 2,040 |
Where is 4125 Riehen?
Frequently asked questions
What is the population of 4125 Riehen (Riehen)?
4125 Riehen has 22,677 residents in 2025. It covers 10.8 km², or 2,090 people per km².
Where is 4125 Riehen?
4125 Riehen (postcode area) is part of Riehen, in Basel-Stadt.
What is the value of “Share of foreign nationals” in 4125 Riehen?
Share of foreign nationals: 30.0% (2025), ranked 462 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4125 Riehen?
Dwellings: 11,122 (2026), ranked 61 of 3,164 postcode areas in the country.