Postcode area · Gaiserwald · St. Gallen

9030 Abtwil SG (Gaiserwald): key figures

9030 Abtwil SG (postcode area in Gaiserwald) has 5,718 residents in 2025 across 6.6 km², or 870 people per km². By population, 9030 Abtwil SG ranks No. 1 of 2 postcode areas in Gaiserwald. Population: +7.1% between 2015 and 2025.

  • 5,718 residents
  • 6.6 km²
  • 870 people/km²

9030 Abtwil SG in numbers

Population
5,718
ranked 387 of 2,275
+7.1%between 2015 and 2025
2015–2025
Population density
870people/km²
ranked 425 of 2,275
Area
6.6km²
ranked 1,771 of 3,168
Share of foreign nationals
19.7%
ranked 1,136 of 2,040
Dwellings
2,656
ranked 444 of 3,164
Residential buildings
1,038
ranked 420 of 3,160
Dwellings in buildings built before 1946
8.8%
ranked 2,950 of 3,164

Key points

By population, 9030 Abtwil SG ranks No. 1 of 2 postcode areas in Gaiserwald.

Nationally, 9030 Abtwil SG ranks No. 387 of 2,275 postcode areas.

Population of 9030 Abtwil SG over time

5,3005,4005,5005,6005,7005,8002015202020232025
Population, 2015–2025

9030 Abtwil SG had 5,341 residents in 2015 and 5,718 in 2025.

YearPopulation
20155,341
20205,411
20235,587
20255,718

All indicators for 9030 Abtwil SG

Next to the value for 9030 Abtwil SG: all postcode areas of Gaiserwald, then of the whole country (totals for counts, weighted averages for rates).

9030 Abtwil SGNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9030 Abtwil SGGaiserwaldSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)2,656––ranked 1 of 2ranked 444 of 3,164
Residential buildings (2026)1,038––ranked 1 of 2ranked 420 of 3,160
Dwellings in buildings built before 1946 (2026)8.8%11.9%23.2%ranked 2 of 2ranked 2,950 of 3,164
Dwellings in buildings built since 2001 (2026)25.5%23.6%23.6%ranked 1 of 2ranked 1,203 of 3,164
Share of detached houses among residential buildings (2026)68.5%69.9%63.5%ranked 2 of 2ranked 1,726 of 3,160

Energy

Indicator9030 Abtwil SGGaiserwaldSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)51.4%47.1%56.2%ranked 1 of 2ranked 1,464 of 3,160
Heat pumps as main heating (2026)44.3%43.9%16.2%ranked 1 of 2ranked 70 of 3,160
Wood heating systems (2026)3.8%4.1%13.5%ranked 2 of 2ranked 2,724 of 3,160
District heating (2026)0.1%4.0%5.6%ranked 2 of 2ranked 2,171 of 3,160

Society

Indicator9030 Abtwil SGGaiserwaldSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)19.7%17.3%29.8%ranked 1 of 2ranked 1,136 of 2,040

Where is 9030 Abtwil SG?

Frequently asked questions

What is the population of 9030 Abtwil SG (Gaiserwald)?

9030 Abtwil SG has 5,718 residents in 2025. It covers 6.6 km², or 870 people per km².

Where is 9030 Abtwil SG?

9030 Abtwil SG (postcode area) is part of Gaiserwald, in St. Gallen.

What is the value of “Share of foreign nationals” in 9030 Abtwil SG?

Share of foreign nationals: 19.7% (2025), ranked 1,136 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9030 Abtwil SG?

Dwellings: 2,656 (2026), ranked 444 of 3,164 postcode areas in the country.