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Demographics

BFS · 2025
Women
3'184 47.3%
Men
3'547 52.7%
Children & youth (0–19)
1'393 20.7%
Swiss citizens
3'190 47.4%
Foreign residents
3'541 52.6%
Population density
980 pop./km²
0–19 · 1'393 · 20.7%20–64 · 4'178 · 62.1%65+ · 1'160 · 17.2%
Foreign residents 52.6%0%64.0%
Population change 2025: +13 (+0.2%) · 65 births · 52 deaths · net migration +5
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 Wahlkreis Rheintal: 40.2% Yes
41.5% YesNo 58.5%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Wahlkreis Rheintal: 62.4% Yes
63.7% YesNo 36.3%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Wahlkreis Rheintal: 61.5% Yes
61.7% YesNo 38.3%
14.06.2026Gesetz über Beiträge für familien- und schulergänzende KinderbetreuungCantonal SG● Accepted · 57.8% YesDistrict Wahlkreis Rheintal: 55.6% Yes
49.5% YesNo 50.5%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Wahlkreis Rheintal: 38.4% Yes
42.7% YesNo 57.3%
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 Wahlkreis Rheintal: 17.3% Yes
16.4% YesNo 83.6%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Wahlkreis Rheintal: 47.9% Yes
55.4% YesNo 44.7%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Wahlkreis Rheintal: 44.5% Yes
49.2% YesNo 50.8%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Wahlkreis Rheintal: 71.6% Yes
67.4% YesNo 32.6%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
SVP43.1% · strongest party
SVP43.1%
FDP16.2%
Mitte15.5%
SP11.9%
GRÜNE4.9%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier109%
Cantonal tax multiplier105%
109%SG range 61%155%
Tax rank 27 of 75 in canton St. Gallen
Tax burden
Single, 100'000 CHF gross income
13'536 CHF(13.5%)
Rank 27 of 75 in the canton · 700 of 2110 in Switzerland
Median canton 13'868 CHF · median Switzerland 15'290 CHF
Cheapest Balgach 10'881 CHF · most expensive Lütisburg 16'080 CHF
Income tax as % of gross income
0%8%15%23%30%40k50k100k150k200k250k300k
100'000 CHF:13'536 CHF(~13.5%)
St. MargrethenCanton range St. GallenSwitzerland median
Show data table
Gross incomeSt. MargrethenSt. GallenSwitzerland median
40'0006.1%4.8–7.3%5.4%
50'0007.8%6.1–9.3%7.8%
60'0009.3%7.4–11.2%10.5%
70'00010.5%8.3–12.5%11.9%
80'00011.5%9.2–13.8%13.1%
90'00012.5%10–14.9%14.1%
100'00013.5%10.9–16.1%15.3%
110'00014.4%11.7–17.1%16.3%
120'00015.2%12.3–18%17.2%
130'00015.9%12.9–18.7%18.1%
140'00016.6%13.6–19.5%19%
150'00017.2%14.1–20.2%19.7%
175'00018.6%15.4–21.8%21.6%
200'00019.9%16.5–23.1%23.2%
225'00020.9%17.5–24.2%24.6%
250'00021.9%18.4–25.2%25.8%
275'00022.6%19.1–26.1%26.8%
300'00023.3%19.7–26.7%27.4%
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–202010.2 °C
Precipitation 1991–20201'149 mm
10.2 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
622 m
Mean elevation
443 m
Relief
227 m
Mean slope
8.9°
Flat share
52.4%
South-facing
1.1%
Above 2000 m
0.0%
Relief 227 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
54.1 GWh/yr
Roofs + façades
68.6 GWh/yr
≈ households powered
12'000
Per inhabitant
8'037 kWh/yr
54 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
26.6 Rp./kWh
Energy
12.06 Rp./kWh
Grid usage
9.11 Rp./kWh
Levies + grid surcharge
3.78 Rp./kWh
26.6 Rp./kWh10.5645.88
Canton median 30.11 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Technische Betriebe, Politische Gemeinde St. Margrethen
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 300538 CHF/mo
Ø premium in canton St. Gallen377 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 St. Gallen. Shown is the average adult premium paid across the whole canton St. Gallen (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
2.17 %
Second homes
11.7 %
Avg. rooms
3.7
Dwellings
3'178
Built before 194622.7%
Built since 200122.5%
2.17 %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
4'559
Workplaces
482
Services share
46.4 %
Jobs by sector: Primary 41 (0.9%) · Secondary 2'404 (52.7%) · Tertiary 2'114 (46.4%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
12
Organic share
8.3 %
Farmland
228 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 109 min · Car 81 min
AgglomerationPT 29 min · Car 18 min
Remoteness 28/75 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number3236
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities6'731 #27 SG · #301 CHGrowing municipalities0.2% #52 SG · #1294 CHShrinking municipalities0.2% #24 SG · #817 CHJobs per resident0.68 #7 SG · #238 CHFamilies & children20.7% #44 SG · #914 CHAge structure17.2% #67 SG · #1743 CHWomen share47.3% #72 SG · #1976 CHForeign residents52.6% #1 SG · #6 CHPopulation density980/km² #11 SG · #230 CHTax burden13'536 #28 SG · #701 CHTaxes109% #27 SGWarmest municipalities10.2 °C #14 SG · #343 CHSunniest municipalities41.3% #44 SG · #1288 CHRainiest municipalities1'149 mm #51 SG · #839 CHVoter turnout46% #74 SG · #2004 CHAgainst Switzerland24.5% #21 SG · #257 CHAligned with Switzerland75.5% #50 SG · #1194 CHSVP strongholds43.1% #16 SG · #493 CHSP strongholds11.9% #19 SG · #1303 CHCentre strongholds15.5% #64 SG · #799 CHFDP strongholds16.2% #17 SG · #722 CHGLP strongholds2.9% #71 SG · #1604 CHGreen strongholds4.9% #62 SG · #1562 CHLargest by area6.9 km² #58 SG · #1283 CHHighest municipalities408 m #69 SG · #1855 CHSecond homes11.7% #32 SG · #935 CHOrganic farming8.3% #49 SG · #1349 CHBest-connected municipalities109 min #48 SG · #1836 CHRemotest municipalities109 min #28 SG · #273 CHHighest peaks622 m #60 SG · #1453 CHHighest-lying municipalities443 m #61 SG · #1765 CHGreatest vertical range227 m #54 SG · #1237 CHSteepest municipalities8.9° #40 SG · #1025 CHSolar potential54 GWh #25 SG · #281 CHSolar potential per capita8'037 kWh #45 SG · #1457 CHCheapest electricity26.6 Rp./kWh #7 SG · #1064 CHMost expensive electricity26.6 Rp./kWh #68 SG · #1043 CH

Localities

swisstopo · 3
What is the postal code of St. Margrethen?
St. Margrethen has 3 postal codes: 9424, 9428, 9430.
What is the tax rate in St. Margrethen?
The municipal tax multiplier of St. Margrethen is 109% (2026); canton SG levies 105%.
How much tax do you pay in St. Margrethen?
A single person without children pays about 13'536 CHF income tax in St. Margrethen on 100'000 CHF gross income (federal, cantonal, municipal), rank 27 of 75 in canton SG. Source: ESTV (2026).
How many residents does St. Margrethen have?
St. Margrethen has 6'731 residents (2025).
How many foreign residents live in St. Margrethen?
St. Margrethen has 3'541 foreign residents, a share of 52.61% (2025).

Map

OpenStreetMap