Postcode area · Rorschach · St. Gallen

9400 Rorschach (Rorschach): key figures

9400 Rorschach (postcode area in Rorschach) has 10,389 residents in 2025 across 10.0 km², or 1,043 people per km². Population: +12.7% between 2015 and 2025.

  • 10,389 residents
  • 10.0 km²
  • 1,043 people/km²

9400 Rorschach in numbers

Population
10,389
ranked 201 of 2,275
+12.7%between 2015 and 2025
2015–2025
Population density
1,043people/km²
ranked 351 of 2,275
Area
10.0km²
ranked 1,166 of 3,168
Share of foreign nationals
52.5%
ranked 10 of 2,040
Dwellings
6,050
ranked 172 of 3,164
Residential buildings
1,068
ranked 400 of 3,160
Dwellings in buildings built before 1946
43.1%
ranked 756 of 3,164

Key points

Nationally, 9400 Rorschach ranks No. 201 of 2,275 postcode areas.

Population of 9400 Rorschach over time

9,0009,50010,00010,5002015202020232025
Population, 2015–2025

9400 Rorschach had 9,215 residents in 2015 and 10,389 in 2025.

YearPopulation
20159,215
20209,589
20239,886
202510,389

All indicators for 9400 Rorschach

Next to the value for 9400 Rorschach: all postcode areas of Rorschach, then of the whole country (totals for counts, weighted averages for rates).

9400 RorschachNational medianHover over or tap a bar to see what it shows.

Housing

Indicator9400 RorschachRorschachSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)6,050––ranked 172 of 3,164
Residential buildings (2026)1,068––ranked 400 of 3,160
Dwellings in buildings built before 1946 (2026)43.1%43.1%23.2%ranked 756 of 3,164
Dwellings in buildings built since 2001 (2026)16.6%16.6%23.6%ranked 2,051 of 3,164
Share of detached houses among residential buildings (2026)26.2%26.2%63.5%ranked 3,099 of 3,160

Energy

Indicator9400 RorschachRorschachSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)69.2%69.2%56.2%ranked 577 of 3,160
Heat pumps as main heating (2026)18.5%18.5%16.2%ranked 1,005 of 3,160
Wood heating systems (2026)1.0%1.0%13.5%ranked 3,069 of 3,160
District heating (2026)6.9%6.9%5.6%ranked 524 of 3,160

Society

Indicator9400 RorschachRorschachSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)52.5%52.5%29.8%ranked 10 of 2,040

Where is 9400 Rorschach?

Frequently asked questions

What is the population of 9400 Rorschach (Rorschach)?

9400 Rorschach has 10,389 residents in 2025. It covers 10.0 km², or 1,043 people per km².

Where is 9400 Rorschach?

9400 Rorschach (postcode area) is part of Rorschach, in St. Gallen.

What is the value of “Share of foreign nationals” in 9400 Rorschach?

Share of foreign nationals: 52.5% (2025), ranked 10 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 9400 Rorschach?

Dwellings: 6,050 (2026), ranked 172 of 3,164 postcode areas in the country.