Postcode area · Mendrisio · Ticino

6864 Arzo (Mendrisio): key figures

6864 Arzo (postcode area in Mendrisio) has 1,254 residents in 2025 across 2.8 km², or 448 people per km². By population, 6864 Arzo ranks No. 4 of 8 postcode areas in Mendrisio. Population: +0.5% between 2015 and 2025.

  • 1,254 residents
  • 2.8 km²
  • 448 people/km²

6864 Arzo in numbers

Population
1,254
ranked 1,418 of 2,275
+0.5%between 2015 and 2025
2015–2025
Population density
448people/km²
ranked 777 of 2,275
Area
2.8km²
ranked 2,770 of 3,168
Share of foreign nationals
17.7%
ranked 1,286 of 2,040
Dwellings
696
ranked 1,496 of 3,164
Residential buildings
397
ranked 1,436 of 3,160
Dwellings in buildings built before 1946
31.2%
ranked 1,363 of 3,164

Key points

By population, 6864 Arzo ranks No. 4 of 8 postcode areas in Mendrisio.

Nationally, 6864 Arzo ranks No. 1,418 of 2,275 postcode areas.

Population of 6864 Arzo over time

1,2401,2601,2801,3001,3202015202020232025
Population, 2015–2025

6864 Arzo had 1,248 residents in 2015 and 1,254 in 2025.

YearPopulation
20151,248
20201,308
20231,262
20251,254

All indicators for 6864 Arzo

Next to the value for 6864 Arzo: all postcode areas of Mendrisio, then of the whole country (totals for counts, weighted averages for rates).

6864 ArzoNational medianHover over or tap a bar to see what it shows.

Housing

Indicator6864 ArzoMendrisioSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)696––ranked 4 of 10ranked 1,496 of 3,164
Residential buildings (2026)397––ranked 4 of 10ranked 1,436 of 3,160
Dwellings in buildings built before 1946 (2026)31.2%23.8%23.2%ranked 5 of 10ranked 1,363 of 3,164
Dwellings in buildings built since 2001 (2026)17.5%21.5%23.6%ranked 6 of 10ranked 1,976 of 3,164
Share of detached houses among residential buildings (2026)67.3%61.4%63.5%ranked 6 of 10ranked 1,815 of 3,160

Energy

Indicator6864 ArzoMendrisioSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)56.7%68.4%56.2%ranked 7 of 10ranked 1,169 of 3,160
Heat pumps as main heating (2026)19.7%13.7%16.2%ranked 2 of 10ranked 911 of 3,160
Wood heating systems (2026)8.9%5.5%13.5%ranked 3 of 10ranked 2,174 of 3,160
District heating (2026)0.6%0.3%5.6%ranked 1 of 10ranked 1,742 of 3,160

Society

Indicator6864 ArzoMendrisioSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)17.7%29.2%29.8%ranked 6 of 7ranked 1,286 of 2,040

Where is 6864 Arzo?

Frequently asked questions

What is the population of 6864 Arzo (Mendrisio)?

6864 Arzo has 1,254 residents in 2025. It covers 2.8 km², or 448 people per km².

Where is 6864 Arzo?

6864 Arzo (postcode area) is part of Mendrisio, in Ticino.

What is the value of “Share of foreign nationals” in 6864 Arzo?

Share of foreign nationals: 17.7% (2025), ranked 1,286 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 6864 Arzo?

Dwellings: 696 (2026), ranked 1,496 of 3,164 postcode areas in the country.