Postcode area · Goldach · St. Gallen

9403 Goldach (Goldach): key figures

9403 Goldach (postcode area in Goldach) has 9,753 residents in 2025 across 7.2 km², or 1,355 people per km². Population: +8.0% between 2015 and 2025.

  • 9,753 residents
  • 7.2 km²
  • 1,355 people/km²

9403 Goldach in numbers

Population
9,753
ranked 217 of 2,275
+8.0%between 2015 and 2025
2015–2025
Population density
1,355people/km²
ranked 262 of 2,275
Area
7.2km²
ranked 1,615 of 3,168
Share of foreign nationals
28.6%
ranked 534 of 2,040
Dwellings
4,926
ranked 232 of 3,164
Residential buildings
1,565
ranked 185 of 3,160
Dwellings in buildings built before 1946
16.0%
ranked 2,469 of 3,164

Key points

Nationally, 9403 Goldach ranks No. 217 of 2,275 postcode areas.

Population of 9403 Goldach over time

9,0009,2009,4009,6009,8002015202020232025
Population, 2015–2025

9403 Goldach had 9,029 residents in 2015 and 9,753 in 2025.

YearPopulation
20159,029
20209,333
20239,572
20259,753

All indicators for 9403 Goldach

Next to the value for 9403 Goldach: all postcode areas of Goldach, then of the whole country (totals for counts, weighted averages for rates).

9403 GoldachNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9403 GoldachGoldachSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)4,926––ranked 232 of 3,164
Residential buildings (2026)1,565––ranked 185 of 3,160
Dwellings in buildings built before 1946 (2026)16.0%16.0%23.2%ranked 2,469 of 3,164
Dwellings in buildings built since 2001 (2026)20.0%20.0%23.6%ranked 1,736 of 3,164
Share of detached houses among residential buildings (2026)63.3%63.3%63.5%ranked 2,147 of 3,160

Energy

Indicator9403 GoldachGoldachSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)73.0%73.0%56.2%ranked 388 of 3,160
Heat pumps as main heating (2026)25.9%25.9%16.2%ranked 550 of 3,160
Wood heating systems (2026)0.5%0.5%13.5%ranked 3,126 of 3,160
District heating (2026)0.3%0.3%5.6%ranked 2,015 of 3,160

Society

Indicator9403 GoldachGoldachSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)28.6%28.6%29.8%ranked 534 of 2,040

Where is 9403 Goldach?

Frequently asked questions

What is the population of 9403 Goldach (Goldach)?

9403 Goldach has 9,753 residents in 2025. It covers 7.2 km², or 1,355 people per km².

Where is 9403 Goldach?

9403 Goldach (postcode area) is part of Goldach, in St. Gallen.

What is the value of “Share of foreign nationals” in 9403 Goldach?

Share of foreign nationals: 28.6% (2025), ranked 534 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9403 Goldach?

Dwellings: 4,926 (2026), ranked 232 of 3,164 postcode areas in the country.