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Demographics

BFS · 2025
Women
4'090 48.8%
Men
4'297 51.2%
Children & youth (0–19)
1'635 19.5%
Swiss citizens
6'235 74.3%
Foreign residents
2'152 25.7%
Population density
677 pop./km²
0–19 · 1'635 · 19.5%20–64 · 5'153 · 61.4%65+ · 1'599 · 19.1%
Foreign residents 25.7%0%64.0%
Population change 2025: +187 (+2.3%) · 59 births · 50 deaths · net migration +184
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 Münchwilen: 38.0% Yes
40.0% YesNo 60.1%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Münchwilen: 61.3% Yes
61.4% YesNo 38.6%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Münchwilen: 59.8% Yes
58.1% YesNo 41.9%
14.06.2026Änderung der Kantonsverfassung zur Anpassung der FinanzkompetenzenCantonal TG● Accepted · 57.1% YesDistrict Bezirk Münchwilen: 56.7% Yes
57.1% YesNo 42.9%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Münchwilen: 37.1% Yes
40.0% YesNo 60.0%
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 Bezirk Münchwilen: 17.6% Yes
19.1% YesNo 80.9%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Münchwilen: 45.8% Yes
48.4% YesNo 51.6%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Münchwilen: 41.0% Yes
42.6% YesNo 57.4%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Bezirk Münchwilen: 70.8% Yes
69.9% YesNo 30.2%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
SVP39.1% · strongest party
SVP39.1%
Mitte24.5%
FDP9.9%
SP8.3%
GRÜNE7.1%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier142%
Cantonal tax multiplier109%
142%TG range 94%175%
Tax rank 34 of 80 in canton Thurgau
Tax burden
Single, 100'000 CHF gross income
13'028 CHF(13%)
Rank 31 of 80 in the canton · 540 of 2110 in Switzerland
Median canton 13'209 CHF · median Switzerland 15'290 CHF
Cheapest Warth-Weiningen 10'862 CHF · most expensive Arbon 14'518 CHF
Income tax as % of gross income
0%8%15%23%30%40k50k100k150k200k250k300k
100'000 CHF:13'028 CHF(~13%)
SirnachCanton range ThurgauSwitzerland median
Show data table
Gross incomeSirnachThurgauSwitzerland median
40'0006%5–6.8%5.4%
50'0007.8%6.4–8.8%7.8%
60'0009.4%7.7–10.6%10.5%
70'00010.6%8.8–11.9%11.9%
80'00011.5%9.5–12.9%13.1%
90'00012.2%10.1–13.6%14.1%
100'00013%10.9–14.5%15.3%
110'00013.8%11.6–15.4%16.3%
120'00014.5%12.2–16.1%17.2%
130'00015.2%12.8–16.8%18.1%
140'00015.8%13.4–17.5%19%
150'00016.4%13.9–18.1%19.7%
175'00017.7%15.1–19.5%21.6%
200'00019%16.3–20.9%23.2%
225'00020.2%17.4–22.1%24.6%
250'00021.2%18.3–23.2%25.8%
275'00022%19.1–24%26.8%
300'00022.7%19.7–24.8%27.4%
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–20209.2 °C
Precipitation 1991–20201'140 mm
9.2 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
735 m
Mean elevation
582 m
Relief
220 m
Mean slope
7.4°
Flat share
45.7%
South-facing
7.1%
Above 2000 m
0.0%
Relief 220 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
60.8 GWh/yr
Roofs + façades
81.3 GWh/yr
≈ households powered
13'500
Per inhabitant
7'251 kWh/yr
61 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
28.73 Rp./kWh
Energy
14.05 Rp./kWh
Grid usage
10.5 Rp./kWh
Levies + grid surcharge
2.55 Rp./kWh
28.73 Rp./kWh10.5645.88
Canton median 28.29 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator EW Sirnach 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
Standard model, deductible 300544 CHF/mo
Ø premium in canton Thurgau382 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo

Premiums are set not per municipality but per canton and premium region. Shown is the average adult premium paid in canton Thurgau (2024, BAG) — it applies canton-wide, not to any single location.

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

Housing

BFS · ARE
Vacancy rate
1.9 %
Second homes
7.1 %
Avg. rooms
3.9
Dwellings
3'993
Built before 194617.3%
Built since 200130.9%
1.9 %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
4'209
Workplaces
558
Services share
72.6 %
Jobs by sector: Primary 95 (2.3%) · Secondary 1'059 (25.2%) · Tertiary 3'055 (72.6%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
30
Organic share
10 %
Farmland
730 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 82 min · Car 52 min
AgglomerationPT 15 min · Car 13 min
Remoteness 58/80 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number4761
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities8'387 #8 TG · #235 CHGrowing municipalities2.3% #16 TG · #283 CHShrinking municipalities2.3% #65 TG · #1826 CHJobs per resident0.5 #17 TG · #543 CHFamilies & children19.5% #60 TG · #1323 CHAge structure19.1% #45 TG · #1423 CHWomen share48.8% #53 TG · #1613 CHForeign residents25.7% #26 TG · #519 CHPopulation density677/km² #15 TG · #373 CHTax burden13'028 #33 TG · #542 CHTaxes142% #34 TGWarmest municipalities9.2 °C #64 TG · #1259 CHSunniest municipalities41.1% #3 TG · #1385 CHRainiest municipalities1'140 mm #5 TG · #875 CHVoter turnout50.9% #71 TG · #1708 CHAgainst Switzerland22.5% #27 TG · #367 CHAligned with Switzerland77.5% #46 TG · #1103 CHSVP strongholds39.1% #60 TG · #716 CHSP strongholds8.3% #35 TG · #1680 CHCentre strongholds24.5% #2 TG · #366 CHFDP strongholds9.9% #38 TG · #1413 CHGLP strongholds3.6% #77 TG · #1480 CHGreen strongholds7.1% #56 TG · #1077 CHLargest by area12.4 km² #23 TG · #782 CHHighest municipalities655 m #4 TG · #681 CHSecond homes7.1% #75 TG · #1814 CHOrganic farming10% #59 TG · #1233 CHBest-connected municipalities82 min #22 TG · #1395 CHRemotest municipalities82 min #58 TG · #726 CHHighest peaks735 m #7 TG · #1112 CHHighest-lying municipalities582 m #10 TG · #1081 CHGreatest vertical range220 m #27 TG · #1272 CHSteepest municipalities7.4° #7 TG · #1187 CHSolar potential61 GWh #9 TG · #235 CHSolar potential per capita7'251 kWh #68 TG · #1627 CHCheapest electricity28.73 Rp./kWh #33 TG · #1542 CHMost expensive electricity28.73 Rp./kWh #47 TG · #565 CH

Localities

swisstopo · 4
What is the postal code of Sirnach?
Sirnach has 4 postal codes: 8370, 8371, 8372, 9573.
What is the tax rate in Sirnach?
The municipal tax multiplier of Sirnach is 142% (2026); canton TG levies 109%.
How much tax do you pay in Sirnach?
A single person without children pays about 13'028 CHF income tax in Sirnach on 100'000 CHF gross income (federal, cantonal, municipal), rank 31 of 80 in canton TG. Source: ESTV (2026).
How many residents does Sirnach have?
Sirnach has 8'387 residents (2025).
How many foreign residents live in Sirnach?
Sirnach has 2'152 foreign residents, a share of 25.66% (2025).

Map

OpenStreetMap