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Switzerland · Canton SO

Oberdorf

4515–4522
SO CANTON45154522
Residents
1'859
Area
11.9 km²
Elevation
798 m a.s.l.
Terrain up to
1'324 m a.s.l.
Tax multiplier
120%
Postal codes
2

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN

Demographics

BFS · 2023
Women
960 51.6%
Men
899 48.4%
Children & youth (0–19)
387 20.8%
Swiss citizens
1'671 91.9%
Foreign residents
147 8.1%
0–19 · 387 · 20.8%20–64 · 1'042 · 56.1%65+ · 430 · 23.1%
Foreign residents 8.1%0%61.6%
STATPOP 2023 · Bundesamt für Statistik (BFS), retrieved 24.07.2026

Votes

BFS
Volksabstimmungen (sd-t-17-02) 2026 · Bundesamt für Statistik (BFS), retrieved 03.08.2026

Politics

National Council election 2023
Mitte21.8% · strongest party
Mitte21.8%
SVP18.7%
FDP18.3%
SP16.4%
GRÜNE11.9%
sd-t-17.02-NRW2023 2023 · Bundesamt für Statistik (BFS), retrieved 20.07.2026

Taxes 2026

ESTV
Municipal tax multiplier120%
Cantonal tax multiplier104%
120%SO range 65%145%
Tax rank 52 of 104 in canton Solothurn
2026 · Eidgenössische Steuerverwaltung (ESTV), retrieved 20.07.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–20208.8 °C
Precipitation 1991–20201'490 mm
8.8 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 03.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
1'324 m
Mean elevation
863 m
Relief
826 m
Mean slope
19.3°
Flat share
11.4%
South-facing
57.1%
Above 2000 m
0.0%
Relief 826 m0 m3'865 m

Terrain figures cover the whole municipal territory (swisstopo DEM, 40 m) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.

swissALTIRegio 2025 · swisstopo, retrieved 04.08.2026

Solar potential

BFE
Roof potential
15.8 GWh/yr
Roofs + façades
20.9 GWh/yr
≈ households powered
3'500
16 GWh/yr01'133 GWh/yr
BFE solar factsheet

Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).

Bundesamt für Energie (BFE), retrieved 10.08.2026

Housing

BFS
Vacancy rate
1.79 %
Avg. rooms
4.4
Dwellings
893
Built before 194622.3%
Built since 200122.3%
1.79 %0 %12 %

Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.

Gebäude- und Wohnungsstatistik (GWS) 2024 · Bundesamt für Statistik (BFS), retrieved 11.08.2026 · Leerwohnungszählung (LWZ) 2025 · Bundesamt für Statistik (BFS), retrieved 11.08.2026

Municipality

Wikidata · CC0
Wikidata · continuously updated, retrieved 27.07.2026

Rankings

24

Postal codes (2)

swisstopo

Localities

swisstopo · 3

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Oberdorf?
Oberdorf has 2 postal codes: 4515, 4522.
What is the tax rate in Oberdorf?
The municipal tax multiplier of Oberdorf is 120% (2026); canton SO levies 104%.
How many residents does Oberdorf have?
Oberdorf has 1'859 residents (2023).
How many foreign residents live in Oberdorf?
Oberdorf has 147 foreign residents, a share of 8.09% (2024).
Which party is strongest in Oberdorf?
In the 2023 National Council election, Mitte was the strongest party in Oberdorf with 21.838% of the vote.

Map

OpenStreetMap