Postcode area · Winterthur · Zurich

8404 Winterthur (Winterthur): key figures

8404 Winterthur (postcode area in Winterthur) has 21,812 residents in 2025 across 12.7 km², or 1,720 people per km². By population, 8404 Winterthur ranks No. 2 of 7 postcode areas in Winterthur. Population: +15.5% between 2015 and 2025.

  • 21,812 residents
  • 12.7 km²
  • 1,720 people/km²

8404 Winterthur in numbers

Population
21,812
ranked 49 of 2,275
+15.5%between 2015 and 2025
2015–2025
Population density
1,720people/km²
ranked 189 of 2,275
Area
12.7km²
ranked 859 of 3,168
Share of foreign nationals
30.8%
ranked 418 of 2,040
Dwellings
10,285
ranked 81 of 3,164
Residential buildings
2,643
ranked 42 of 3,160
Dwellings in buildings built before 1946
15.6%
ranked 2,492 of 3,164

Key points

By population, 8404 Winterthur ranks No. 2 of 7 postcode areas in Winterthur.

Nationally, 8404 Winterthur ranks No. 49 of 2,275 postcode areas.

Population of 8404 Winterthur over time

18,00019,00020,00021,00022,0002015202020232025
Population, 2015–2025

8404 Winterthur had 18,877 residents in 2015 and 21,812 in 2025.

YearPopulation
201518,877
202020,593
202321,659
202521,812

All indicators for 8404 Winterthur

Next to the value for 8404 Winterthur: all postcode areas of Winterthur, then of the whole country (totals for counts, weighted averages for rates).

8404 WinterthurNational medianHover over or tap a bar to see what it shows.

Housing

Indicator8404 WinterthurWinterthurSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)10,285––ranked 2 of 7ranked 81 of 3,164
Residential buildings (2026)2,643––ranked 3 of 7ranked 42 of 3,160
Dwellings in buildings built before 1946 (2026)15.6%24.5%23.2%ranked 3 of 7ranked 2,492 of 3,164
Dwellings in buildings built since 2001 (2026)33.6%24.9%23.6%ranked 3 of 7ranked 540 of 3,164
Share of detached houses among residential buildings (2026)60.7%55.2%63.5%ranked 4 of 7ranked 2,321 of 3,160

Energy

Indicator8404 WinterthurWinterthurSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)68.0%63.1%56.2%ranked 3 of 7ranked 621 of 3,160
Heat pumps as main heating (2026)18.8%19.4%16.2%ranked 3 of 7ranked 980 of 3,160
Wood heating systems (2026)5.5%4.6%13.5%ranked 5 of 7ranked 2,522 of 3,160
District heating (2026)6.6%11.9%5.6%ranked 5 of 7ranked 540 of 3,160

Society

Indicator8404 WinterthurWinterthurSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)30.8%27.4%29.8%ranked 3 of 7ranked 418 of 2,040

Where is 8404 Winterthur?

Frequently asked questions

What is the population of 8404 Winterthur (Winterthur)?

8404 Winterthur has 21,812 residents in 2025. It covers 12.7 km², or 1,720 people per km².

Where is 8404 Winterthur?

8404 Winterthur (postcode area) is part of Winterthur, in Zurich.

What is the value of “Share of foreign nationals” in 8404 Winterthur?

Share of foreign nationals: 30.8% (2025), ranked 418 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 8404 Winterthur?

Dwellings: 10,285 (2026), ranked 81 of 3,164 postcode areas in the country.