Postcode area · Horriwil · Solothurn

4557 Horriwil (Horriwil): key figures

4557 Horriwil (postcode area in Horriwil) has 895 residents in 2025 across 2.6 km², or 339 people per km². Population: +10.0% between 2015 and 2025.

  • 895 residents
  • 2.6 km²
  • 339 people/km²

4557 Horriwil in numbers

Population
895
ranked 1,683 of 2,275
+10.0%between 2015 and 2025
2015–2025
Population density
339people/km²
ranked 994 of 2,275
Area
2.6km²
ranked 2,811 of 3,168
Share of foreign nationals
9.4%
ranked 1,855 of 2,040
Dwellings
424
ranked 2,095 of 3,164
Residential buildings
290
ranked 1,881 of 3,160
Dwellings in buildings built before 1946
17.7%
ranked 2,328 of 3,164

Key points

Nationally, 4557 Horriwil ranks No. 1,683 of 2,275 postcode areas.

Population of 4557 Horriwil over time

7758008258508759002015202020232025
Population, 2015–2025

4557 Horriwil had 814 residents in 2015 and 895 in 2025.

YearPopulation
2015814
2020797
2023866
2025895

All indicators for 4557 Horriwil

Next to the value for 4557 Horriwil: all postcode areas of Horriwil, then of the whole country (totals for counts, weighted averages for rates).

4557 HorriwilNational medianHover over or tap a bar to see what it shows.

Housing

Indicator4557 HorriwilHorriwilSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)424––ranked 2,095 of 3,164
Residential buildings (2026)290––ranked 1,881 of 3,160
Dwellings in buildings built before 1946 (2026)17.7%17.7%23.2%ranked 2,328 of 3,164
Dwellings in buildings built since 2001 (2026)24.5%24.5%23.6%ranked 1,302 of 3,164
Share of detached houses among residential buildings (2026)83.1%83.1%63.5%ranked 303 of 3,160

Energy

Indicator4557 HorriwilHorriwilSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)69.4%69.4%56.2%ranked 566 of 3,160
Heat pumps as main heating (2026)10.5%10.5%16.2%ranked 1,884 of 3,160
Wood heating systems (2026)13.4%13.4%13.5%ranked 1,768 of 3,160
District heating (2026)1.0%1.0%5.6%ranked 1,476 of 3,160

Society

Indicator4557 HorriwilHorriwilSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)9.4%9.4%29.8%ranked 1,855 of 2,040

Where is 4557 Horriwil?

Frequently asked questions

What is the population of 4557 Horriwil (Horriwil)?

4557 Horriwil has 895 residents in 2025. It covers 2.6 km², or 339 people per km².

Where is 4557 Horriwil?

4557 Horriwil (postcode area) is part of Horriwil, in Solothurn.

What is the value of “Share of foreign nationals” in 4557 Horriwil?

Share of foreign nationals: 9.4% (2025), ranked 1,855 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 4557 Horriwil?

Dwellings: 424 (2026), ranked 2,095 of 3,164 postcode areas in the country.