Postcode area · Diepoldsau · St. Gallen

9444 Diepoldsau (Diepoldsau): key figures

9444 Diepoldsau (postcode area in Diepoldsau) has 6,635 residents in 2025 across 8.6 km², or 774 people per km². Population: +10.5% between 2015 and 2025.

  • 6,635 residents
  • 8.6 km²
  • 774 people/km²

9444 Diepoldsau in numbers

Population
6,635
ranked 326 of 2,275
+10.5%between 2015 and 2025
2015–2025
Population density
774people/km²
ranked 477 of 2,275
Area
8.6km²
ranked 1,356 of 3,168
Share of foreign nationals
28.4%
ranked 546 of 2,040
Dwellings
2,977
ranked 386 of 3,164
Residential buildings
1,545
ranked 192 of 3,160
Dwellings in buildings built before 1946
14.3%
ranked 2,589 of 3,164

Key points

Nationally, 9444 Diepoldsau ranks No. 326 of 2,275 postcode areas.

Population of 9444 Diepoldsau over time

6,0006,2006,4006,6006,8002015202020232025
Population, 2015–2025

9444 Diepoldsau had 6,007 residents in 2015 and 6,635 in 2025.

YearPopulation
20156,007
20206,170
20236,601
20256,635

All indicators for 9444 Diepoldsau

Next to the value for 9444 Diepoldsau: all postcode areas of Diepoldsau, then of the whole country (totals for counts, weighted averages for rates).

9444 DiepoldsauNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9444 DiepoldsauDiepoldsauSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)2,977––ranked 386 of 3,164
Residential buildings (2026)1,545––ranked 192 of 3,160
Dwellings in buildings built before 1946 (2026)14.3%14.3%23.2%ranked 2,589 of 3,164
Dwellings in buildings built since 2001 (2026)38.5%38.5%23.6%ranked 284 of 3,164
Share of detached houses among residential buildings (2026)80.0%80.0%63.5%ranked 527 of 3,160

Energy

Indicator9444 DiepoldsauDiepoldsauSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)57.1%57.1%56.2%ranked 1,149 of 3,160
Heat pumps as main heating (2026)28.7%28.7%16.2%ranked 444 of 3,160
Wood heating systems (2026)5.7%5.7%13.5%ranked 2,493 of 3,160
District heating (2026)6.3%6.3%5.6%ranked 565 of 3,160

Society

Indicator9444 DiepoldsauDiepoldsauSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)28.4%28.4%29.8%ranked 546 of 2,040

Where is 9444 Diepoldsau?

Frequently asked questions

What is the population of 9444 Diepoldsau (Diepoldsau)?

9444 Diepoldsau has 6,635 residents in 2025. It covers 8.6 km², or 774 people per km².

Where is 9444 Diepoldsau?

9444 Diepoldsau (postcode area) is part of Diepoldsau, in St. Gallen.

What is the value of “Share of foreign nationals” in 9444 Diepoldsau?

Share of foreign nationals: 28.4% (2025), ranked 546 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9444 Diepoldsau?

Dwellings: 2,977 (2026), ranked 386 of 3,164 postcode areas in the country.