About Unterkulm
Unterkulm is a municipality in the district of Kulm in the canton of Aargau in Switzerland.
- Canton
- Aargau
- Area
- 8.9 km²
Population
3'801residents
Median taxable income
CHF 61'949
Vacancy
1.03%
Foreign residents
33.1%
Dwellings
1'748
Jobs (FTE)
1'071
Tax multiplier
115%
Land use across the commune
Every 100 × 100 m of Unterkulm, coloured by how it's used. Drawn from the BFS Arealstatistik 2025 release — the most recent nationwide snapshot.
Source BFS Arealstatistik
Loading statistics …
Jobs & economy
1'071 full-time-equivalent jobs across 213 businesses — services make up 57% of employment, industry 38% (2018).
Source BFS STATENT
1'071FTE total
Primary5.4%
Secondary37.5%
Tertiary57.0%
Land use
15% built-up, 46% agricultural, 39% forest. Measured across 890 hectares (2018).
Source BFS Arealstatistik
Settlement14.6%
Agriculture45.9%
Forest39.4%
Water0.0%
Election Results
SVP led the 2023 National Council election with 50.3%, ahead of SP at 12.7%.
Source BFS
SVP50.3%+8.3 pp
SP12.7%−3.1 pp
FDP10.0%−3.4 pp
Mitte6.2%
Grüne6.2%−2.2 pp
GLP5.2%+1.2 pp
EVP3.6%−0.6 pp
Others
2.0%
2023 vs 2019
Primary / second-home mix
93.4% of dwellings are primary residences; 6.6% are second homes (2026).
Source BFS
Primary residences93.4%
Second homes6.6%
Climate data
Annual mean 10.0°C with 920 mm of rain. Warmest in July (19.4°C), coldest in January (1.2°C). Station: Buchs / Aarau, 387 m.
Source MeteoSchweiz
10.0°C
Annual mean
Mean 10.0°C
Rain 920 mm
Sun ≈127 days
Buchs / Aarau · 387 m.a.s.l. · 1991–2020 normals
Warming trend
Mean annual temperature at Luzern has risen by +2.4°C between the first 30 observed years (1871–1900) and the most recent (1996–2025).
Source MeteoSchweiz NBCN
+2.4°C
mean 1996–2025 vs. 1871–1900
Luzern · 454 m.a.s.l. · 1871–2025
