Postcode area · Wattwil · St. Gallen

9630 Wattwil (Wattwil): key figures

9630 Wattwil (postcode area in Wattwil) has 6,892 residents in 2025 across 28.6 km², or 241 people per km². By population, 9630 Wattwil ranks No. 1 of 2 postcode areas in Wattwil. Population: +7.4% between 2015 and 2025.

  • 6,892 residents
  • 28.6 km²
  • 241 people/km²

9630 Wattwil in numbers

Population
6,892
ranked 303 of 2,275
+7.4%between 2015 and 2025
2015–2025
Population density
241people/km²
ranked 1,249 of 2,275
Area
28.6km²
ranked 280 of 3,168
Share of foreign nationals
30.4%
ranked 441 of 2,040
Dwellings
3,559
ranked 319 of 3,164
Residential buildings
1,274
ranked 283 of 3,160
Dwellings in buildings built before 1946
31.2%
ranked 1,363 of 3,164

Key points

By population, 9630 Wattwil ranks No. 1 of 2 postcode areas in Wattwil.

Nationally, 9630 Wattwil ranks No. 303 of 2,275 postcode areas.

Population of 9630 Wattwil over time

6,4006,6006,8007,0002015202020232025
Population, 2015–2025

9630 Wattwil had 6,418 residents in 2015 and 6,892 in 2025.

YearPopulation
20156,418
20206,613
20236,796
20256,892

All indicators for 9630 Wattwil

Next to the value for 9630 Wattwil: all postcode areas of Wattwil, then of the whole country (totals for counts, weighted averages for rates).

9630 WattwilNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9630 WattwilWattwilSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)3,559––ranked 1 of 3ranked 319 of 3,164
Residential buildings (2026)1,274––ranked 1 of 3ranked 283 of 3,160
Dwellings in buildings built before 1946 (2026)31.2%31.3%23.2%ranked 2 of 3ranked 1,363 of 3,164
Dwellings in buildings built since 2001 (2026)16.4%18.3%23.6%ranked 2 of 3ranked 2,067 of 3,164
Share of detached houses among residential buildings (2026)65.5%68.8%63.5%ranked 3 of 3ranked 1,969 of 3,160

Energy

Indicator9630 WattwilWattwilSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)52.6%49.9%56.2%ranked 2 of 3ranked 1,383 of 3,160
Heat pumps as main heating (2026)21.5%22.7%16.2%ranked 2 of 3ranked 811 of 3,160
Wood heating systems (2026)17.8%20.1%13.5%ranked 2 of 3ranked 1,450 of 3,160
District heating (2026)6.3%4.9%5.6%ranked 1 of 3ranked 565 of 3,160

Society

Indicator9630 WattwilWattwilSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)30.4%29.7%29.8%ranked 1 of 2ranked 441 of 2,040

Where is 9630 Wattwil?

Frequently asked questions

What is the population of 9630 Wattwil (Wattwil)?

9630 Wattwil has 6,892 residents in 2025. It covers 28.6 km², or 241 people per km².

Where is 9630 Wattwil?

9630 Wattwil (postcode area) is part of Wattwil, in St. Gallen.

What is the value of “Share of foreign nationals” in 9630 Wattwil?

Share of foreign nationals: 30.4% (2025), ranked 441 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9630 Wattwil?

Dwellings: 3,559 (2026), ranked 319 of 3,164 postcode areas in the country.