About Knonau
Knonau is a municipality in the district of Affoltern in the canton of Zürich in Switzerland.
- Canton
- Zürich
- Area
- 6.5 km²
Population
2'466residents
Median taxable income
CHF 77'097
Vacancy
0.46%
Foreign residents
19.6%
Dwellings
1'087
Jobs (FTE)
566
Tax multiplier
116%
Land use across the commune
Every 100 × 100 m of Knonau, 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
566 full-time-equivalent jobs across 133 businesses — services make up 71% of employment, industry 19% (2018).
Source BFS STATENT
566FTE total
Primary9.7%
Secondary19.1%
Tertiary71.2%
Land use
17% built-up, 63% agricultural, 17% forest. Measured across 649 hectares (2018).
Source BFS Arealstatistik
Settlement17.9%
Agriculture64.3%
Forest17.7%
Water0.0%
Election Results
SVP led the 2023 National Council election with 31.7%, ahead of SP at 15.4%.
Source BFS
SVP31.7%−0.6 pp
SP15.4%+4.0 pp
GLP14.5%−2.8 pp
Mitte11.3%
FDP8.6%−0.6 pp
Grüne7.0%−4.3 pp
EVP4.4%−2.5 pp
Others
2.4%
2023 vs 2019
Primary / second-home mix
92.2% of dwellings are primary residences; 7.8% are second homes (2026).
Source BFS
Primary residences92.2%
Second homes7.8%
Climate data
Annual mean 9.8°C with 1'108 mm of rain. Warmest in July (19.0°C), coldest in January (0.9°C). Station: Zürich / Fluntern, 556 m.
Source MeteoSchweiz
9.8°C
Annual mean
Mean 9.8°C
Rain 1108 mm
Sun ≈141 days
Zürich / Fluntern · 556 m.a.s.l. · 1991–2020 normals
Warming trend
Mean annual temperature at Zürich / Fluntern has risen by +2.2°C between the first 30 observed years (1864–1893) and the most recent (1996–2025).
Source MeteoSchweiz NBCN
+2.2°C
mean 1996–2025 vs. 1864–1893
Zürich / Fluntern · 556 m.a.s.l. · 1864–2025
