Postcode area · Winterthur · Zurich

8405 Winterthur (Winterthur): key figures

8405 Winterthur (postcode area in Winterthur) has 18,979 residents in 2025 across 10.7 km², or 1,780 people per km². By population, 8405 Winterthur ranks No. 3 of 7 postcode areas in Winterthur. Population: +10.0% between 2015 and 2025.

  • 18,979 residents
  • 10.7 km²
  • 1,780 people/km²

8405 Winterthur in numbers

Population
18,979
ranked 74 of 2,275
+10.0%between 2015 and 2025
2015–2025
Population density
1,780people/km²
ranked 183 of 2,275
Area
10.7km²
ranked 1,064 of 3,168
Share of foreign nationals
23.6%
ranked 828 of 2,040
Dwellings
8,643
ranked 108 of 3,164
Residential buildings
2,660
ranked 41 of 3,160
Dwellings in buildings built before 1946
7.3%
ranked 3,019 of 3,164

Key points

By population, 8405 Winterthur ranks No. 3 of 7 postcode areas in Winterthur.

Nationally, 8405 Winterthur ranks No. 74 of 2,275 postcode areas.

Population of 8405 Winterthur over time

17,00017,50018,00018,50019,0002015202020232025
Population, 2015–2025

8405 Winterthur had 17,259 residents in 2015 and 18,979 in 2025.

YearPopulation
201517,259
202018,193
202318,838
202518,979

All indicators for 8405 Winterthur

Next to the value for 8405 Winterthur: all postcode areas of Winterthur, then of the whole country (totals for counts, weighted averages for rates).

8405 WinterthurNational medianHover over or tap a bar to see what it shows.

Housing

Indicator8405 WinterthurWinterthurSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)8,643––ranked 3 of 7ranked 108 of 3,164
Residential buildings (2026)2,660––ranked 2 of 7ranked 41 of 3,160
Dwellings in buildings built before 1946 (2026)7.3%24.5%23.2%ranked 6 of 7ranked 3,019 of 3,164
Dwellings in buildings built since 2001 (2026)22.5%24.9%23.6%ranked 6 of 7ranked 1,477 of 3,164
Share of detached houses among residential buildings (2026)65.0%55.2%63.5%ranked 2 of 7ranked 2,018 of 3,160

Energy

Indicator8405 WinterthurWinterthurSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)54.1%63.1%56.2%ranked 5 of 7ranked 1,318 of 3,160
Heat pumps as main heating (2026)31.5%19.4%16.2%ranked 1 of 7ranked 344 of 3,160
Wood heating systems (2026)6.0%4.6%13.5%ranked 2 of 7ranked 2,470 of 3,160
District heating (2026)6.9%11.9%5.6%ranked 4 of 7ranked 524 of 3,160

Society

Indicator8405 WinterthurWinterthurSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)23.6%27.4%29.8%ranked 6 of 7ranked 828 of 2,040

Where is 8405 Winterthur?

Frequently asked questions

What is the population of 8405 Winterthur (Winterthur)?

8405 Winterthur has 18,979 residents in 2025. It covers 10.7 km², or 1,780 people per km².

Where is 8405 Winterthur?

8405 Winterthur (postcode area) is part of Winterthur, in Zurich.

What is the value of “Share of foreign nationals” in 8405 Winterthur?

Share of foreign nationals: 23.6% (2025), ranked 828 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 8405 Winterthur?

Dwellings: 8,643 (2026), ranked 108 of 3,164 postcode areas in the country.