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Demographics

BFS · 2025
Women
530 50.3%
Men
523 49.7%
Children & youth (0–19)
129 12.3%
Swiss citizens
978 92.9%
Foreign residents
75 7.1%
Population density
10 pop./km²
0–19 · 129 · 12.3%20–64 · 596 · 56.6%65+ · 328 · 31.1%
Foreign residents 7.1%0%64.0%
Population change 2025: −10 (−0.9%) · 5 births · 17 deaths · net migration +8
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 Region Surselva: 31.7% Yes
29.8% YesNo 70.2%
27.09.2026Teilrevision der Verfassung des Kantons Graubünden (Stimmrechtsalter 16)Cantonal GR● Rejected · 32.6% YesDistrict Region Surselva: 30.7% Yes
32.2% YesNo 67.8%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Region Surselva: 62.3% Yes
60.7% YesNo 39.3%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Region Surselva: 46.9% Yes
42.8% YesNo 57.2%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Region Surselva: 43.3% Yes
38.8% YesNo 61.2%
08.03.2026Popular Initiative ‘For a fair energy and climate policy: Investing for prosperity, jobs and the environment (Climate Fund Initiative)’Federal● Rejected · 29.3% YesDistrict Region Surselva: 19.5% Yes
16.7% YesNo 83.3%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Region Surselva: 31.5% Yes
28.7% YesNo 71.3%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Region Surselva: 37.2% Yes
37.7% YesNo 62.3%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Region Surselva: 69.5% Yes
66.3% YesNo 33.7%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
Mitte70.6% · strongest party
Mitte70.6%
SVP16.1%
SP5.3%
GRÜNE3.6%
GLP1.9%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier105%
Cantonal tax multiplier92%
105%GR range 30%120%
Tax rank 84 of 100 in canton Grisons
Tax burden
Single, 100'000 CHF gross income
13'602 CHF(13.6%)
Rank 84 of 100 in the canton · 725 of 2110 in Switzerland
Median canton 12'696 CHF · median Switzerland 15'290 CHF
Cheapest Rongellen 9'071 CHF · most expensive Flerden 14'508 CHF
Income tax as % of gross income
0%8%15%23%30%40k50k100k150k200k250k300k
100'000 CHF:13'602 CHF(~13.6%)
SumvitgCanton range GrisonsSwitzerland median
Show data table
Gross incomeSumvitgGrisonsSwitzerland median
40'0004%2.6–4.3%5.4%
50'0006.3%4.1–6.8%7.8%
60'0008.4%5.5–9%10.5%
70'00010.1%6.6–10.8%11.9%
80'00011.4%7.5–12.2%13.1%
90'00012.4%8.2–13.3%14.1%
100'00013.6%9.1–14.5%15.3%
110'00014.6%9.8–15.5%16.3%
120'00015.4%10.5–16.4%17.2%
130'00016.2%11–17.2%18.1%
140'00017%11.7–18%19%
150'00017.7%12.2–18.8%19.7%
175'00019.3%13.5–20.5%21.6%
200'00020.7%14.7–21.9%23.2%
225'00021.8%15.6–23.1%24.6%
250'00022.9%16.5–24.1%25.8%
275'00023.7%17.3–25%26.8%
300'00024.4%17.9–25.8%27.4%
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–20203.7 °C
Precipitation 1991–20201'519 mm
3.7 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
3'600 m
Mean elevation
1'945 m
Relief
2'727 m
Mean slope
30.3°
Flat share
2.6%
South-facing
27.9%
Above 2000 m
48.9%
Relief 2'727 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
25.7 GWh/yr
Roofs + façades
38.1 GWh/yr
≈ households powered
5'700
Per inhabitant
24'435 kWh/yr
26 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
29.79 Rp./kWh
Energy
9.38 Rp./kWh
Grid usage
15.12 Rp./kWh
Levies + grid surcharge
3.3 Rp./kWh
29.79 Rp./kWh10.5645.88
Canton median 28.55 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Repower AG
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 3
Standard model, deductible 300510 CHF/mo
Ø premium in canton Grisons363 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo

Premiums are set per canton and premium region. This area lies in premium region 3 of canton Grisons. Shown is the average adult premium paid across the whole canton Grisons (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
0.56 %
Second homes
55 %
Avg. rooms
3.9
Dwellings
1'062
Built before 194651.3%
Built since 20014.7%
Second Homes Act: no new second-home permits (official building restriction in force).
0.56 %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
438
Workplaces
105
Services share
46.1 %
Jobs by sector: Primary 82 (18.7%) · Secondary 154 (35.2%) · Tertiary 202 (46.1%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
30
Organic share
70 %
Farmland
719 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 164 min · Car 114 min
AgglomerationPT 75 min · Car 60 min
Remoteness 34/100 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number3985
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities1'053 #53 GR · #1428 CHGrowing municipalities-0.9% #81 GR · #1791 CHShrinking municipalities-0.9% #20 GR · #315 CHJobs per resident0.42 #69 GR · #771 CHFamilies & children12.3% #92 GR · #2065 CHAge structure31.1% #16 GR · #74 CHWomen share50.3% #22 GR · #740 CHForeign residents7.1% #90 GR · #1917 CHPopulation density10/km² #77 GR · #2040 CHTax burden13'602 #87 GR · #728 CHTaxes105% #84 GRWarmest municipalities3.7 °C #60 GR · #2037 CHSunniest municipalities47.5% #64 GR · #367 CHRainiest municipalities1'519 mm #14 GR · #227 CHVoter turnout55.5% #42 GR · #1147 CHAgainst Switzerland14.7% #20 GR · #927 CHAligned with Switzerland85.3% #33 GR · #525 CHSVP strongholds16.1% #97 GR · #1945 CHSP strongholds5.3% #96 GR · #1925 CHCentre strongholds70.6% #2 GR · #10 CHFDP strongholds1.8% #99 GR · #2035 CHGLP strongholds1.9% #87 GR · #1774 CHGreen strongholds3.6% #61 GR · #1799 CHLargest by area101.9 km² #23 GR · #66 CHHighest municipalities1'056 m #63 GR · #225 CHSecond homes55% #45 GR · #133 CHOrganic farming70% #33 GR · #56 CHBest-connected municipalities164 min #68 GR · #2076 CHRemotest municipalities164 min #34 GR · #36 CHHighest peaks3'600 m #4 GR · #39 CHHighest-lying municipalities1'945 m #33 GR · #95 CHGreatest vertical range2'727 m #2 GR · #40 CHSteepest municipalities30.3° #14 GR · #84 CHSolar potential26 GWh #37 GR · #814 CHSolar potential per capita24'435 kWh #19 GR · #98 CHCheapest electricity29.79 Rp./kWh #78 GR · #1745 CHMost expensive electricity29.79 Rp./kWh #28 GR · #367 CH

Localities

swisstopo · 6
What is the postal code of Sumvitg?
Sumvitg has 6 postal codes: 7172, 7173, 7174, 7175, 7176, 7180.
What is the tax rate in Sumvitg?
The municipal tax multiplier of Sumvitg is 105% (2026); canton GR levies 92%.
How much tax do you pay in Sumvitg?
A single person without children pays about 13'602 CHF income tax in Sumvitg on 100'000 CHF gross income (federal, cantonal, municipal), rank 84 of 100 in canton GR. Source: ESTV (2026).
How many residents does Sumvitg have?
Sumvitg has 1'053 residents (2025).
How many foreign residents live in Sumvitg?
Sumvitg has 75 foreign residents, a share of 7.12% (2025).

Map

OpenStreetMap