Postcode area · Wattwil · St. Gallen

9631 Ulisbach (Wattwil): key figures

9631 Ulisbach (postcode area in Wattwil) has 1,412 residents in 2025 across 4.0 km², or 352 people per km². By population, 9631 Ulisbach ranks No. 2 of 2 postcode areas in Wattwil. Population: +21.6% between 2015 and 2025.

  • 1,412 residents
  • 4.0 km²
  • 352 people/km²

9631 Ulisbach in numbers

Population
1,412
ranked 1,328 of 2,275
+21.6%between 2015 and 2025
2015–2025
Population density
352people/km²
ranked 970 of 2,275
Area
4.0km²
ranked 2,461 of 3,168
Share of foreign nationals
26.1%
ranked 679 of 2,040
Dwellings
608
ranked 1,658 of 3,164
Residential buildings
313
ranked 1,766 of 3,160
Dwellings in buildings built before 1946
24.3%
ranked 1,823 of 3,164

Key points

By population, 9631 Ulisbach ranks No. 2 of 2 postcode areas in Wattwil.

Nationally, 9631 Ulisbach ranks No. 1,328 of 2,275 postcode areas.

Population of 9631 Ulisbach over time

1,1001,2001,3001,4001,5002015202020232025
Population, 2015–2025

9631 Ulisbach had 1,161 residents in 2015 and 1,412 in 2025.

YearPopulation
20151,161
20201,255
20231,402
20251,412

All indicators for 9631 Ulisbach

Next to the value for 9631 Ulisbach: all postcode areas of Wattwil, then of the whole country (totals for counts, weighted averages for rates).

9631 UlisbachNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9631 UlisbachWattwilSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)608––ranked 2 of 3ranked 1,658 of 3,164
Residential buildings (2026)313––ranked 2 of 3ranked 1,766 of 3,160
Dwellings in buildings built before 1946 (2026)24.3%31.3%23.2%ranked 3 of 3ranked 1,823 of 3,164
Dwellings in buildings built since 2001 (2026)32.7%18.3%23.6%ranked 1 of 3ranked 603 of 3,164
Share of detached houses among residential buildings (2026)79.9%68.8%63.5%ranked 1 of 3ranked 538 of 3,160

Energy

Indicator9631 UlisbachWattwilSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)52.7%49.9%56.2%ranked 1 of 3ranked 1,380 of 3,160
Heat pumps as main heating (2026)28.8%22.7%16.2%ranked 1 of 3ranked 442 of 3,160
Wood heating systems (2026)15.3%20.1%13.5%ranked 3 of 3ranked 1,636 of 3,160
District heating (2026)0.3%4.9%5.6%ranked 3 of 3ranked 2,015 of 3,160

Society

Indicator9631 UlisbachWattwilSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)26.1%29.7%29.8%ranked 2 of 2ranked 679 of 2,040

Where is 9631 Ulisbach?

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Postcode areas near 9631 Ulisbach

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Frequently asked questions

What is the population of 9631 Ulisbach (Wattwil)?

9631 Ulisbach has 1,412 residents in 2025. It covers 4.0 km², or 352 people per km².

Where is 9631 Ulisbach?

9631 Ulisbach (postcode area) is part of Wattwil, in St. Gallen.

What is the value of “Share of foreign nationals” in 9631 Ulisbach?

Share of foreign nationals: 26.1% (2025), ranked 679 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9631 Ulisbach?

Dwellings: 608 (2026), ranked 1,658 of 3,164 postcode areas in the country.