← Winterthur
City district
Kreis 3 Seen
WinterthurKreis 3 Seen is one of 7 city districts of Winterthur and covers 10 statistical quarters with 20'854 residents between them. The district sits between the municipality and the quarter — it is not a postal delivery area and does not line up with postal codes.
The district in numbers
BFS · 2024- Residents
- 20'854
- Quarters
- 10
- Households
- 8'789
- Foreign
- 23.6%
No median age is given for the district: a weighted mean of per-quarter medians is not a median. Median ages are shown per quarter.
STATPOP 2024 · Federal Statistical Office (FSO), retrieved undefined.undefined.
Quarters in this district
BFS · 10Waser
5'556Residents
- Median age
- 42.5
- Foreign
- 27.1%
Büelwiesen
3'229Residents
- Median age
- 41
- Foreign
- 32.3%
Ganzenbühl
3'105Residents
- Median age
- 41.5
- Foreign
- 26.9%
Oberseen
2'750Residents
- Median age
- 46.2
- Foreign
- 13.3%
Sennhof
1'775Residents
- Median age
- 35.5
- Foreign
- 33.1%
Waldegg
1'408Residents
- Median age
- 49.8
- Foreign
- 17.8%
Iberg
1'176Residents
- Median age
- 43.8
- Foreign
- 12.1%
Sonnenberg
943Residents
- Median age
- 50.5
- Foreign
- 10.5%
Gotzenwil
721Residents
- Median age
- 46.2
- Foreign
- 9.4%
Eidberg
191Residents
- Median age
- 41
- Foreign
- 11.0%
Other city districts in Winterthur
6Frequently asked questions
- Which quarters belong to Kreis 3 Seen in Winterthur?
- Kreis 3 Seen contains 10 statistical quarters: Waser, Büelwiesen, Ganzenbühl, Oberseen, Sennhof, Waldegg, Iberg, Sonnenberg, Gotzenwil, Eidberg. Together they have 20'854 residents (BFS, 2024).
- Does Kreis 3 Seen have its own postal code?
- No. City districts are a statistical and political subdivision of the municipality, while postal codes are delivery areas — the boundaries do not coincide.
City districts exist only in Zürich (12) and Winterthur (7). No other Swiss municipality has this level.