About Schlieren
Schlieren are optical inhomogeneities in transparent media that are not necessarily visible to the human eye. Schlieren physics developed out of the need to produce high-quality lenses devoid of such inhomogeneities. These inhomogeneities are localized differences in optical path length that cause deviations of light rays, especially by refraction. This light deviation can produce localized brightening, darkening, or even color changes in an image, depending on the directions the rays deviate.
- Canton
- Zurich
- Area
- 6.6 km²
Population
20'391residents
Median taxable income
CHF 65'542
Vacancy
0.03%
Foreign residents
46.7%
Dwellings
10'000
Jobs (FTE)
18'945
Tax multiplier
111%
Land use across the commune
Every 100 × 100 m of Schlieren, 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
18'945 full-time-equivalent jobs across 1'396 businesses — services make up 85% of employment, industry 15% (2018).
Source BFS STATENT
18'945FTE total
Primary0.1%
Secondary15.1%
Tertiary84.7%
Land use
54% built-up, 16% agricultural, 29% forest. Measured across 655 hectares (2018).
Source BFS Arealstatistik
Settlement54.7%
Agriculture15.8%
Forest29.5%
Water0.0%
Election Results
SVP led the 2023 National Council election with 26.6%, ahead of SP at 23.1%.
Source BFS
SVP26.6%−1.4 pp
SP23.1%+2.2 pp
GLP12.2%−1.2 pp
Grüne10.9%−0.2 pp
FDP10.6%−0.5 pp
Mitte9.0%
EVP2.1%−0.6 pp
Others
2.0%
2023 vs 2019
Primary / second-home mix
91.8% of dwellings are primary residences; 8.2% are second homes (2026).
Source BFS
Primary residences91.8%
Second homes8.2%
Climate data
Annual mean 9.8°C with 1'022 mm of rain. Warmest in July (19.2°C), coldest in January (1.0°C). Station: Zürich / Affoltern, 444 m.
Source MeteoSchweiz
9.8°C
Annual mean
Mean 9.8°C
Rain 1022 mm
Sun ≈138 days
Zürich / Affoltern · 444 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
