Postcode area · Grellingen · Basel-Landschaft

4203 Grellingen (Grellingen): key figures

4203 Grellingen (postcode area in Grellingen) has 1,950 residents in 2025 across 3.3 km², or 591 people per km². Population: +8.0% between 2015 and 2025.

  • 1,950 residents
  • 3.3 km²
  • 591 people/km²

4203 Grellingen in numbers

Population
1,950
ranked 1,055 of 2,275
+8.0%between 2015 and 2025
2015–2025
Population density
591people/km²
ranked 618 of 2,275
Area
3.3km²
ranked 2,649 of 3,168
Share of foreign nationals
32.3%
ranked 346 of 2,040
Dwellings
1,061
ranked 1,089 of 3,164
Residential buildings
551
ranked 1,046 of 3,160
Dwellings in buildings built before 1946
26.5%
ranked 1,666 of 3,164

Key points

Nationally, 4203 Grellingen ranks No. 1,055 of 2,275 postcode areas.

Population of 4203 Grellingen over time

1,8001,8501,9001,9502015202020232025
Population, 2015–2025

4203 Grellingen had 1,806 residents in 2015 and 1,950 in 2025.

YearPopulation
20151,806
20201,805
20231,903
20251,950

All indicators for 4203 Grellingen

Next to the value for 4203 Grellingen: all postcode areas of Grellingen, then of the whole country (totals for counts, weighted averages for rates).

4203 GrellingenNational medianHover over or tap a bar to see what it shows.

Housing

Indicator4203 GrellingenGrellingenSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)1,061––ranked 1,089 of 3,164
Residential buildings (2026)551––ranked 1,046 of 3,160
Dwellings in buildings built before 1946 (2026)26.5%26.5%23.2%ranked 1,666 of 3,164
Dwellings in buildings built since 2001 (2026)28.5%28.5%23.6%ranked 921 of 3,164
Share of detached houses among residential buildings (2026)76.8%76.8%63.5%ranked 850 of 3,160

Energy

Indicator4203 GrellingenGrellingenSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)57.9%57.9%56.2%ranked 1,103 of 3,160
Heat pumps as main heating (2026)33.1%33.1%16.2%ranked 295 of 3,160
Wood heating systems (2026)7.1%7.1%13.5%ranked 2,368 of 3,160
District heating (2026)0.0%0.0%5.6%ranked 2,207 of 3,160

Society

Indicator4203 GrellingenGrellingenSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)32.3%32.3%29.8%ranked 346 of 2,040

Where is 4203 Grellingen?

Frequently asked questions

What is the population of 4203 Grellingen (Grellingen)?

4203 Grellingen has 1,950 residents in 2025. It covers 3.3 km², or 591 people per km².

Where is 4203 Grellingen?

4203 Grellingen (postcode area) is part of Grellingen, in Basel-Landschaft.

What is the value of “Share of foreign nationals” in 4203 Grellingen?

Share of foreign nationals: 32.3% (2025), ranked 346 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 4203 Grellingen?

Dwellings: 1,061 (2026), ranked 1,089 of 3,164 postcode areas in the country.