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Demographics

BFS · 2025
Women
240 49.7%
Men
243 50.3%
Children & youth (0–19)
75 15.5%
Swiss citizens
427 88.4%
Foreign residents
56 11.6%
Population density
22 pop./km²
0–19 · 75 · 15.5%20–64 · 270 · 55.9%65+ · 138 · 28.6%
Foreign residents 11.6%0%64.0%
Population change 2025: +4 (+0.8%) · 4 births · 3 deaths · net migration +0
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026 · swisstopo, retrieved 24.09.2026 · BEVNAT (Statistik der natürlichen Bevölkerungsbewegung) 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Raron: 31.6% Yes
26.8% YesNo 73.2%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Raron: 59.3% Yes
48.7% YesNo 51.3%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Raron: 53.1% Yes
45.5% YesNo 54.6%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Raron: 33.4% Yes
24.2% YesNo 75.8%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Raron: 42.1% Yes
33.3% YesNo 66.7%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Raron: 38.9% Yes
38.8% YesNo 61.2%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Bezirk Raron: 72.4% Yes
67.1% YesNo 33.0%
08.03.2026Popular Initiative 'Yes to an independent and free Swiss currency with coins or banknotes (Cash is freedom)'Federal● Rejected · 45.6% YesDistrict Bezirk Raron: 43.2% Yes
41.0% YesNo 59.0%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
Mitte52.0% · strongest party
Mitte52.0%
SVP37.5%
SP6.5%
GRÜNE2.8%
FDP1.0%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier120%
Cantonal tax multiplier100%
120%VS range 100%145%
Tax rank 58 of 122 in canton Valais
Tax burden
Single, 100'000 CHF gross income
15'894 CHF(15.9%)
Rank 80 of 122 in the canton · 1225 of 2110 in Switzerland
Median canton 15'413 CHF · median Switzerland 15'290 CHF
Cheapest Bister VS 13'690 CHF · most expensive Grächen 17'302 CHF
Income tax as % of gross income
0%9%18%26%35%40k50k100k150k200k250k300k
100'000 CHF:15'894 CHF(~15.9%)
UnterbächCanton range ValaisSwitzerland median
Show data table
Gross incomeUnterbächValaisSwitzerland median
40'0005.2%4.2–5.8%5.4%
50'0009.3%7.5–10.3%7.8%
60'00010.9%8.8–12%10.5%
70'00012.3%10.2–13.5%11.9%
80'00013.6%11.4–14.9%13.1%
90'00014.6%12.4–16%14.1%
100'00015.9%13.7–17.3%15.3%
110'00017.1%14.8–18.5%16.3%
120'00018.1%15.9–19.6%17.2%
130'00019.3%17–20.8%18.1%
140'00020.4%18.1–22%19%
150'00021.4%19.1–23%19.7%
175'00023.9%21.8–25.7%21.6%
200'00025.9%23.9–27.7%23.2%
225'00027.1%25.1–28.9%24.6%
250'00028.1%26–30%25.8%
275'00028.9%26.8–30.8%26.8%
300'00029.6%27.4–31.6%27.4%
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–20207.2 °C
Territorial mean (incl. peaks)1.7 °C
Precipitation 1991–2020632 mm
7.2 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
3'048 m
Mean elevation
2'191 m
Relief
2'411 m
Mean slope
24.1°
Flat share
1.6%
South-facing
3.4%
Above 2000 m
67.6%
Relief 2'411 m0 m3'847 m

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

swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026
Roof potential
10.3 GWh/yr
Roofs + façades
14.1 GWh/yr
≈ households powered
2'300
Per inhabitant
21'304 kWh/yr
10 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).

Swiss Federal Office of Energy (SFOE), retrieved 24.09.2026

Electricity

ElCom · 2027
Tariff H4
22.97 Rp./kWh
Energy
9.21 Rp./kWh
Grid usage
10.13 Rp./kWh
Levies + grid surcharge
2.3 Rp./kWh
22.97 Rp./kWh10.5645.88
Canton median 26.56 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Gemeinde Unterbäch VS, Elektrizitätswerk
ElCom tariff comparison ↗
How this is measured

Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.

2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026
Premium regionRegion 2
Standard model, deductible 300522 CHF/mo
Ø premium in canton Valais391 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo

Premiums are set per canton and premium region. This area lies in premium region 2 of canton Valais. Shown is the average adult premium paid across the whole canton Valais (2024, BAG) — a region-specific average is not available in the cantonal data.

2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026

Housing

BFS · ARE
Vacancy rate
1.37 %
Second homes
64.7 %
Avg. rooms
3.3
Dwellings
658
Built before 194619.6%
Built since 20017.1%
Second Homes Act: no new second-home permits (official building restriction in force).
1.37 %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.

Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Dwelling inventory and second-home share 2026 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Economy

BFS · 2024
Jobs
162
Workplaces
50
Services share
67.9 %
Jobs by sector: Primary 38 (23.5%) · Secondary 14 (8.6%) · Tertiary 110 (67.9%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
13
Organic share
23.1 %
Farmland
244 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 106 min · Car 107 min
AgglomerationPT 51 min · Car 36 min
Remoteness 73/122 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number6201
DistrictBezirk Raron
Wikidata · continuously updated, retrieved 24.09.2026

Localities

swisstopo · 2
What is the postal code of Unterbäch?
Unterbäch has 2 postal codes: 3942, 3944.
What is the tax rate in Unterbäch?
The municipal tax multiplier of Unterbäch is 120% (2026); canton VS levies 100%.
How much tax do you pay in Unterbäch?
A single person without children pays about 15'894 CHF income tax in Unterbäch on 100'000 CHF gross income (federal, cantonal, municipal), rank 80 of 122 in canton VS. Source: ESTV (2026).
How many residents does Unterbäch have?
Unterbäch has 483 residents (2025).
How many foreign residents live in Unterbäch?
Unterbäch has 56 foreign residents, a share of 11.59% (2025).

Map

OpenStreetMap