Postcode area · Sumvitg · Grisons

7173 Surrein (Sumvitg): key figures

7173 Surrein (postcode area in Sumvitg) has 209 residents in 2025 across 55.2 km², or 3.8 people per km². By population, 7173 Surrein ranks No. 2 of 2 postcode areas in Sumvitg. Population: −18.7% between 2015 and 2025.

  • 209 residents
  • 55.2 km²
  • 4 people/km²

7173 Surrein in numbers

Population
209
ranked 2,220 of 2,275
−18.7%between 2015 and 2025
2015–2025
Population density
4people/km²
ranked 2,264 of 2,275
Area
55.2km²
ranked 108 of 3,168
Share of foreign nationals
2.9%
ranked 2,032 of 2,040
Dwellings
277
ranked 2,482 of 3,164
Residential buildings
207
ranked 2,289 of 3,160
Dwellings in buildings built before 1946
68.6%
ranked 102 of 3,164

Key points

By population, 7173 Surrein ranks No. 2 of 2 postcode areas in Sumvitg.

Nationally, 7173 Surrein ranks No. 2,220 of 2,275 postcode areas.

Population of 7173 Surrein over time

2002202402602015202020232025
Population, 2015–2025

7173 Surrein had 257 residents in 2015 and 209 in 2025.

YearPopulation
2015257
2020231
2023214
2025209

All indicators for 7173 Surrein

Next to the value for 7173 Surrein: all postcode areas of Sumvitg, then of the whole country (totals for counts, weighted averages for rates).

7173 SurreinNational medianHover over or tap a bar to see what it shows.

Housing

Indicator7173 SurreinSumvitgSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)277––ranked 3 of 5ranked 2,482 of 3,164
Residential buildings (2026)207––ranked 1 of 5ranked 2,289 of 3,160
Dwellings in buildings built before 1946 (2026)68.6%50.5%23.2%ranked 2 of 5ranked 102 of 3,164
Dwellings in buildings built since 2001 (2026)3.2%5.9%23.6%ranked 4 of 5ranked 3,040 of 3,164
Share of detached houses among residential buildings (2026)78.7%66.0%63.5%ranked 1 of 5ranked 650 of 3,160

Energy

Indicator7173 SurreinSumvitgSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)10.0%20.9%56.2%ranked 5 of 5ranked 3,076 of 3,160
Heat pumps as main heating (2026)6.0%10.5%16.2%ranked 4 of 5ranked 2,557 of 3,160
Wood heating systems (2026)79.6%59.3%13.5%ranked 1 of 5ranked 31 of 3,160
District heating (2026)0.0%0.5%5.6%ranked 2 of 5ranked 2,207 of 3,160

Society

Indicator7173 SurreinSumvitgSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)2.9%2.9%29.8%ranked 2 of 2ranked 2,032 of 2,040

Where is 7173 Surrein?

Frequently asked questions

What is the population of 7173 Surrein (Sumvitg)?

7173 Surrein has 209 residents in 2025. It covers 55.2 km², or 4 people per km².

Where is 7173 Surrein?

7173 Surrein (postcode area) is part of Sumvitg, in Grisons.

What is the value of “Share of foreign nationals” in 7173 Surrein?

Share of foreign nationals: 2.9% (2025), ranked 2,032 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 7173 Surrein?

Dwellings: 277 (2026), ranked 2,482 of 3,164 postcode areas in the country.