Postcode area · Jonschwil · St. Gallen

9243 Jonschwil (Jonschwil): key figures

9243 Jonschwil (postcode area in Jonschwil) has 1,863 residents in 2025 across 7.1 km², or 262 people per km². By population, 9243 Jonschwil ranks No. 2 of 2 postcode areas in Jonschwil. Population: +3.2% between 2015 and 2025.

  • 1,863 residents
  • 7.1 km²
  • 262 people/km²

9243 Jonschwil in numbers

Population
1,863
ranked 1,097 of 2,275
+3.2%between 2015 and 2025
2015–2025
Population density
262people/km²
ranked 1,189 of 2,275
Area
7.1km²
ranked 1,644 of 3,168
Share of foreign nationals
14.8%
ranked 1,501 of 2,040
Dwellings
798
ranked 1,363 of 3,164
Residential buildings
470
ranked 1,226 of 3,160
Dwellings in buildings built before 1946
19.7%
ranked 2,166 of 3,164

Key points

By population, 9243 Jonschwil ranks No. 2 of 2 postcode areas in Jonschwil.

Nationally, 9243 Jonschwil ranks No. 1,097 of 2,275 postcode areas.

Population of 9243 Jonschwil over time

1,8001,8201,8401,8601,8802015202020232025
Population, 2015–2025

9243 Jonschwil had 1,806 residents in 2015 and 1,863 in 2025.

YearPopulation
20151,806
20201,865
20231,874
20251,863

All indicators for 9243 Jonschwil

Next to the value for 9243 Jonschwil: all postcode areas of Jonschwil, then of the whole country (totals for counts, weighted averages for rates).

9243 JonschwilNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9243 JonschwilJonschwilSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)798––ranked 2 of 2ranked 1,363 of 3,164
Residential buildings (2026)470––ranked 2 of 2ranked 1,226 of 3,160
Dwellings in buildings built before 1946 (2026)19.7%13.5%23.2%ranked 1 of 2ranked 2,166 of 3,164
Dwellings in buildings built since 2001 (2026)25.9%29.8%23.6%ranked 2 of 2ranked 1,175 of 3,164
Share of detached houses among residential buildings (2026)77.0%78.2%63.5%ranked 2 of 2ranked 828 of 3,160

Energy

Indicator9243 JonschwilJonschwilSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)37.6%49.3%56.2%ranked 2 of 2ranked 2,190 of 3,160
Heat pumps as main heating (2026)46.8%36.6%16.2%ranked 1 of 2ranked 50 of 3,160
Wood heating systems (2026)12.2%9.6%13.5%ranked 1 of 2ranked 1,869 of 3,160
District heating (2026)0.2%0.2%5.6%ranked 1 of 2ranked 2,105 of 3,160

Society

Indicator9243 JonschwilJonschwilSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)14.8%15.6%29.8%ranked 2 of 2ranked 1,501 of 2,040

Where is 9243 Jonschwil?

Other postcode areas in Jonschwil

Postcode areas near 9243 Jonschwil

Next in alphabetical order: 9536 Schwarzenbach SG

The postcode areas of Jonschwil

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Frequently asked questions

What is the population of 9243 Jonschwil (Jonschwil)?

9243 Jonschwil has 1,863 residents in 2025. It covers 7.1 km², or 262 people per km².

Where is 9243 Jonschwil?

9243 Jonschwil (postcode area) is part of Jonschwil, in St. Gallen.

What is the value of “Share of foreign nationals” in 9243 Jonschwil?

Share of foreign nationals: 14.8% (2025), ranked 1,501 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9243 Jonschwil?

Dwellings: 798 (2026), ranked 1,363 of 3,164 postcode areas in the country.