Postcode area · Aesch (BL) · Basel-Landschaft

4147 Aesch BL (Aesch (BL)): key figures

4147 Aesch BL (postcode area in Aesch (BL)) has 11,269 residents in 2025 across 8.3 km², or 1,361 people per km². Population: +11.4% between 2015 and 2025.

  • 11,269 residents
  • 8.3 km²
  • 1,361 people/km²

4147 Aesch BL in numbers

Population
11,269
ranked 184 of 2,275
+11.4%between 2015 and 2025
2015–2025
Population density
1,361people/km²
ranked 260 of 2,275
Area
8.3km²
ranked 1,409 of 3,168
Share of foreign nationals
28.0%
ranked 569 of 2,040
Dwellings
5,690
ranked 185 of 3,164
Residential buildings
2,144
ranked 80 of 3,160
Dwellings in buildings built before 1946
7.2%
ranked 3,024 of 3,164

Key points

Nationally, 4147 Aesch BL ranks No. 184 of 2,275 postcode areas.

Population of 4147 Aesch BL over time

10,00010,50011,00011,5002015202020232025
Population, 2015–2025

4147 Aesch BL had 10,113 residents in 2015 and 11,269 in 2025.

YearPopulation
201510,113
202010,263
202310,714
202511,269

All indicators for 4147 Aesch BL

Next to the value for 4147 Aesch BL: all postcode areas of Aesch (BL), then of the whole country (totals for counts, weighted averages for rates).

4147 Aesch BLNational medianHover over or tap a bar to see what it shows.

Housing

Indicator4147 Aesch BLAesch (BL)SwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)5,690––ranked 185 of 3,164
Residential buildings (2026)2,144––ranked 80 of 3,160
Dwellings in buildings built before 1946 (2026)7.2%7.2%23.2%ranked 3,024 of 3,164
Dwellings in buildings built since 2001 (2026)26.9%26.9%23.6%ranked 1,073 of 3,164
Share of detached houses among residential buildings (2026)73.3%73.3%63.5%ranked 1,219 of 3,160

Energy

Indicator4147 Aesch BLAesch (BL)SwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)75.5%75.5%56.2%ranked 300 of 3,160
Heat pumps as main heating (2026)9.4%9.4%16.2%ranked 2,046 of 3,160
Wood heating systems (2026)1.6%1.6%13.5%ranked 3,001 of 3,160
District heating (2026)12.4%12.4%5.6%ranked 289 of 3,160

Society

Indicator4147 Aesch BLAesch (BL)SwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)28.0%28.0%29.8%ranked 569 of 2,040

Where is 4147 Aesch BL?

Frequently asked questions

What is the population of 4147 Aesch BL (Aesch (BL))?

4147 Aesch BL has 11,269 residents in 2025. It covers 8.3 km², or 1,361 people per km².

Where is 4147 Aesch BL?

4147 Aesch BL (postcode area) is part of Aesch (BL), in Basel-Landschaft.

What is the value of “Share of foreign nationals” in 4147 Aesch BL?

Share of foreign nationals: 28.0% (2025), ranked 569 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 4147 Aesch BL?

Dwellings: 5,690 (2026), ranked 185 of 3,164 postcode areas in the country.