9525 Lenggenwil (Niederhelfenschwil): key figures
9525 Lenggenwil (postcode area in Niederhelfenschwil) has 797 residents in 2025 across 5.3 km², or 151 people per km². By population, 9525 Lenggenwil ranks No. 3 of 3 postcode areas in Niederhelfenschwil. Population: +2.6% between 2015 and 2025.
- 797 residents
- 5.3 km²
- 151 people/km²
9525 Lenggenwil in numbers
Key points
By population, 9525 Lenggenwil ranks No. 3 of 3 postcode areas in Niederhelfenschwil.
Nationally, 9525 Lenggenwil ranks No. 1,767 of 2,275 postcode areas.
Population of 9525 Lenggenwil over time
9525 Lenggenwil had 777 residents in 2015 and 797 in 2025.
| Year | Population |
|---|---|
| 2015 | 777 |
| 2020 | 815 |
| 2023 | 813 |
| 2025 | 797 |
All indicators for 9525 Lenggenwil
Next to the value for 9525 Lenggenwil: all postcode areas of Niederhelfenschwil, then of the whole country (totals for counts, weighted averages for rates).
Housing
| Indicator | 9525 Lenggenwil | Niederhelfenschwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 333 | – | – | ranked 3 of 3 | ranked 2,326 of 3,164 | |
| Residential buildings (2026) | 226 | – | – | ranked 3 of 3 | ranked 2,199 of 3,160 | |
| Dwellings in buildings built before 1946 (2026) | 23.7% | 18.5% | 23.2% | ranked 1 of 3 | ranked 1,876 of 3,164 | |
| Dwellings in buildings built since 2001 (2026) | 21.6% | 35.5% | 23.6% | ranked 3 of 3 | ranked 1,570 of 3,164 | |
| Share of detached houses among residential buildings (2026) | 82.7% | 80.3% | 63.5% | ranked 1 of 3 | ranked 334 of 3,160 |
Energy
| Indicator | 9525 Lenggenwil | Niederhelfenschwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 51.1% | 51.0% | 56.2% | ranked 2 of 3 | ranked 1,482 of 3,160 | |
| Heat pumps as main heating (2026) | 32.4% | 37.5% | 16.2% | ranked 3 of 3 | ranked 313 of 3,160 | |
| Wood heating systems (2026) | 15.1% | 10.8% | 13.5% | ranked 1 of 3 | ranked 1,651 of 3,160 | |
| District heating (2026) | 0.0% | 0.1% | 5.6% | ranked 2 of 3 | ranked 2,207 of 3,160 |
Society
| Indicator | 9525 Lenggenwil | Niederhelfenschwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 13.2% | 11.3% | 29.8% | ranked 1 of 3 | ranked 1,614 of 2,040 |
Where is 9525 Lenggenwil?
Other postcode areas in Niederhelfenschwil
Postcode areas near 9525 Lenggenwil
- 9526 Zuckenriet1,121 residents
- 9527 Niederhelfenschwil1,349 residents
- 9515 HosenruckWuppenau
- 9245 OberbürenOberbüren
- 9524 Zuzwil SGZuzwil (SG)
- 9244 NiederuzwilUzwil
Next in alphabetical order: 9526 Zuckenriet
Frequently asked questions
What is the population of 9525 Lenggenwil (Niederhelfenschwil)?
9525 Lenggenwil has 797 residents in 2025. It covers 5.3 km², or 151 people per km².
Where is 9525 Lenggenwil?
9525 Lenggenwil (postcode area) is part of Niederhelfenschwil, in St. Gallen.
What is the value of “Share of foreign nationals” in 9525 Lenggenwil?
Share of foreign nationals: 13.2% (2025), ranked 1,614 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 9525 Lenggenwil?
Dwellings: 333 (2026), ranked 2,326 of 3,164 postcode areas in the country.