Postcode area · Herznach-Ueken · Aargau

5028 Ueken (Herznach-Ueken): key figures

5028 Ueken (postcode area in Herznach-Ueken) has 998 residents in 2025 across 5.1 km², or 196 people per km². By population, 5028 Ueken ranks No. 2 of 2 postcode areas in Herznach-Ueken. Population: +11.9% between 2015 and 2025.

  • 998 residents
  • 5.1 km²
  • 196 people/km²

5028 Ueken in numbers

Population
998
ranked 1,606 of 2,275
+11.9%between 2015 and 2025
2015–2025
Population density
196people/km²
ranked 1,402 of 2,275
Area
5.1km²
ranked 2,144 of 3,168
Share of foreign nationals
23.1%
ranked 867 of 2,040
Dwellings
456
ranked 2,011 of 3,164
Residential buildings
273
ranked 1,952 of 3,160
Dwellings in buildings built before 1946
17.8%
ranked 2,319 of 3,164

Key points

By population, 5028 Ueken ranks No. 2 of 2 postcode areas in Herznach-Ueken.

Nationally, 5028 Ueken ranks No. 1,606 of 2,275 postcode areas.

Population of 5028 Ueken over time

8509009501,0001,0502015202020232025
Population, 2015–2025

5028 Ueken had 892 residents in 2015 and 998 in 2025.

YearPopulation
2015892
2020913
20231,008
2025998

All indicators for 5028 Ueken

Next to the value for 5028 Ueken: all postcode areas of Herznach-Ueken, then of the whole country (totals for counts, weighted averages for rates).

5028 UekenNational medianHover over or tap a bar to see what it shows.

Housing

Indicator5028 UekenHerznach-UekenSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)456––ranked 2 of 2ranked 2,011 of 3,164
Residential buildings (2026)273––ranked 2 of 2ranked 1,952 of 3,160
Dwellings in buildings built before 1946 (2026)17.8%19.2%23.2%ranked 2 of 2ranked 2,319 of 3,164
Dwellings in buildings built since 2001 (2026)32.7%38.8%23.6%ranked 2 of 2ranked 603 of 3,164
Share of detached houses among residential buildings (2026)83.2%79.2%63.5%ranked 1 of 2ranked 301 of 3,160

Energy

Indicator5028 UekenHerznach-UekenSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)55.0%46.8%56.2%ranked 1 of 2ranked 1,255 of 3,160
Heat pumps as main heating (2026)13.6%16.9%16.2%ranked 2 of 2ranked 1,461 of 3,160
Wood heating systems (2026)21.9%21.5%13.5%ranked 1 of 2ranked 1,189 of 3,160
District heating (2026)0.0%0.2%5.6%ranked 2 of 2ranked 2,207 of 3,160

Society

Indicator5028 UekenHerznach-UekenSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)23.1%21.7%29.8%ranked 1 of 2ranked 867 of 2,040

Where is 5028 Ueken?

Frequently asked questions

What is the population of 5028 Ueken (Herznach-Ueken)?

5028 Ueken has 998 residents in 2025. It covers 5.1 km², or 196 people per km².

Where is 5028 Ueken?

5028 Ueken (postcode area) is part of Herznach-Ueken, in Aargau.

What is the value of “Share of foreign nationals” in 5028 Ueken?

Share of foreign nationals: 23.1% (2025), ranked 867 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 5028 Ueken?

Dwellings: 456 (2026), ranked 2,011 of 3,164 postcode areas in the country.