Postcode area · Thun · Bern

3645 Gwatt (Thun) (Thun): key figures

3645 Gwatt (Thun) (postcode area in Thun) has 4,461 residents in 2025 across 7.3 km², or 607 people per km². By population, 3645 Gwatt (Thun) ranks No. 3 of 6 postcode areas in Thun. Population: +8.6% between 2015 and 2025.

  • 4,461 residents
  • 7.3 km²
  • 607 people/km²

3645 Gwatt (Thun) in numbers

Population
4,461
ranked 519 of 2,275
+8.6%between 2015 and 2025
2015–2025
Population density
607people/km²
ranked 601 of 2,275
Area
7.3km²
ranked 1,579 of 3,168
Share of foreign nationals
13.7%
ranked 1,586 of 2,040
Dwellings
2,335
ranked 510 of 3,164
Residential buildings
1,024
ranked 432 of 3,160
Dwellings in buildings built before 1946
18.6%
ranked 2,253 of 3,164

Key points

By population, 3645 Gwatt (Thun) ranks No. 3 of 6 postcode areas in Thun.

Nationally, 3645 Gwatt (Thun) ranks No. 519 of 2,275 postcode areas.

Population of 3645 Gwatt (Thun) over time

4,1004,2004,3004,4004,5002015202020232025
Population, 2015–2025

3645 Gwatt (Thun) had 4,107 residents in 2015 and 4,461 in 2025.

YearPopulation
20154,107
20204,382
20234,399
20254,461

All indicators for 3645 Gwatt (Thun)

Next to the value for 3645 Gwatt (Thun): all postcode areas of Thun, then of the whole country (totals for counts, weighted averages for rates).

3645 Gwatt (Thun)National medianHover over or tap a bar to see what it shows.

Housing

Indicator3645 Gwatt (Thun)ThunSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)2,335––ranked 3 of 6ranked 510 of 3,164
Residential buildings (2026)1,024––ranked 3 of 6ranked 432 of 3,160
Dwellings in buildings built before 1946 (2026)18.6%21.9%23.2%ranked 4 of 6ranked 2,253 of 3,164
Dwellings in buildings built since 2001 (2026)13.2%14.5%23.6%ranked 4 of 6ranked 2,323 of 3,164
Share of detached houses among residential buildings (2026)58.9%49.7%63.5%ranked 3 of 6ranked 2,432 of 3,160

Energy

Indicator3645 Gwatt (Thun)ThunSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)65.2%70.4%56.2%ranked 5 of 6ranked 746 of 3,160
Heat pumps as main heating (2026)23.0%19.8%16.2%ranked 1 of 6ranked 715 of 3,160
Wood heating systems (2026)7.8%4.4%13.5%ranked 2 of 6ranked 2,294 of 3,160
District heating (2026)0.0%3.0%5.6%ranked 4 of 6ranked 2,207 of 3,160

Society

Indicator3645 Gwatt (Thun)ThunSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)13.7%17.7%29.8%ranked 4 of 6ranked 1,586 of 2,040

Where is 3645 Gwatt (Thun)?

Frequently asked questions

What is the population of 3645 Gwatt (Thun) (Thun)?

3645 Gwatt (Thun) has 4,461 residents in 2025. It covers 7.3 km², or 607 people per km².

Where is 3645 Gwatt (Thun)?

3645 Gwatt (Thun) (postcode area) is part of Thun, in Bern.

What is the value of “Share of foreign nationals” in 3645 Gwatt (Thun)?

Share of foreign nationals: 13.7% (2025), ranked 1,586 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 3645 Gwatt (Thun)?

Dwellings: 2,335 (2026), ranked 510 of 3,164 postcode areas in the country.