Demographics
BFS · 2025Women
1'204 51.2%
Men
1'147 48.8%
Children & youth (0–19)
491 20.9%
Swiss citizens
1'810 77.0%
Foreign residents
541 23.0%
Population density
349 pop./km²
0–19 · 491 · 20.9%20–64 · 1'378 · 58.6%65+ · 482 · 20.5%
Foreign residents 23.0%0%64.0%
Population change 2025: −4 (−0.2%) · 19 births · 12 deaths · net migration −6
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 'For food security – through increased sustainable domestic production, more plant-based food and clean drinking water (Food Initiative)'Federal● Rejected · 27.5% YesDistrict Bezirk Kreuzlingen: 27.4% Yes
27.9% YesNo 72.1%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Kreuzlingen: 33.5% Yes
34.6% YesNo 65.4%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Kreuzlingen: 56.4% Yes
53.4% YesNo 46.6%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Kreuzlingen: 48.8% Yes
51.4% YesNo 48.6%
14.06.2026Änderung der Kantonsverfassung zur Anpassung der FinanzkompetenzenCantonal TG● Accepted · 57.1% YesDistrict Bezirk Kreuzlingen: 58.8% Yes
57.1% YesNo 42.9%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Kreuzlingen: 43.1% Yes
41.8% YesNo 58.3%
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 Bezirk Kreuzlingen: 23.7% Yes
24.0% YesNo 76.1%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Kreuzlingen: 43.4% Yes
43.6% YesNo 56.4%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Kreuzlingen: 39.6% Yes
42.2% YesNo 57.8%
08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict Bezirk Kreuzlingen: 71.5% Yes
69.0% YesNo 31.0%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP39.4% · strongest party
SVP39.4%
Mitte14.7%
SP12.0%
FDP10.6%
GRÜNE9.4%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier144%
Cantonal tax multiplier109%
144%TG range 94%175%
Tax rank 36 of 80 in canton ThurgauTax burden
Single, 100'000 CHF gross income
13'119 CHF(13.1%)
Rank 36 of 80 in the canton · 565 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
100'000 CHF:13'119 CHF(~13.1%)
AltnauCanton range ThurgauSwitzerland median
Show data table
| Gross income | Altnau | Thurgau | Switzerland median |
|---|---|---|---|
| 40'000 | 6.1% | 5–6.8% | 5.4% |
| 50'000 | 7.9% | 6.4–8.8% | 7.8% |
| 60'000 | 9.5% | 7.7–10.6% | 10.5% |
| 70'000 | 10.7% | 8.8–11.9% | 11.9% |
| 80'000 | 11.6% | 9.5–12.9% | 13.1% |
| 90'000 | 12.3% | 10.1–13.6% | 14.1% |
| 100'000 | 13.1% | 10.9–14.5% | 15.3% |
| 110'000 | 13.9% | 11.6–15.4% | 16.3% |
| 120'000 | 14.6% | 12.2–16.1% | 17.2% |
| 130'000 | 15.3% | 12.8–16.8% | 18.1% |
| 140'000 | 15.9% | 13.4–17.5% | 19% |
| 150'000 | 16.5% | 13.9–18.1% | 19.7% |
| 175'000 | 17.9% | 15.1–19.5% | 21.6% |
| 200'000 | 19.1% | 16.3–20.9% | 23.2% |
| 225'000 | 20.3% | 17.4–22.1% | 24.6% |
| 250'000 | 21.3% | 18.3–23.2% | 25.8% |
| 275'000 | 22.1% | 19.1–24% | 26.8% |
| 300'000 | 22.8% | 19.7–24.8% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–202010 °C
Precipitation 1991–2020956 mm
10 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
519 m
Mean elevation
462 m
Relief
123 m
Mean slope
2.6°
Flat share
93.3%
South-facing
0.0%
Above 2000 m
0.0%
Relief 123 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
22.3 GWh/yr
Roofs + façades
29.4 GWh/yr
≈ households powered
5'000
Per inhabitant
9'498 kWh/yr
22 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 · 2027Tariff H4
24.18 Rp./kWh
Energy
8.9 Rp./kWh
Grid usage
10.62 Rp./kWh
Levies + grid surcharge
2.6 Rp./kWh
24.18 Rp./kWh10.5645.88
Canton median 28.29 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Politische Gemeinde Altnau, Elektrizitätsversorgung
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
Health-insurance premiums
BAG · 2024Standard 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 · AREVacancy rate
0.79 %
Second homes
9.8 %
Avg. rooms
4.2
Dwellings
1'136
Built before 194630.0%
Built since 200127.2%
0.79 %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.
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 · 2024Jobs
897
Workplaces
197
Services share
64.2 %
Jobs by sector: Primary 120 (13.4%) · Secondary 201 (22.4%) · Tertiary 576 (64.2%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
19
Organic share
10.5 %
Farmland
466 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026
Accessibility
ARE · NPVMNational Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026
Municipality
Wikidata · CC0Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities2'351 #41 TG · #885 CHGrowing municipalities-0.2% #69 TG · #1518 CHShrinking municipalities-0.2% #12 TG · #592 CHJobs per resident0.38 #44 TG · #931 CHFamilies & children20.9% #43 TG · #857 CHAge structure20.5% #25 TG · #1150 CHWomen share51.2% #3 TG · #321 CHForeign residents23% #32 TG · #654 CHPopulation density349/km² #33 TG · #691 CHTax burden13'119 #36 TG · #565 CHTaxes144% #36 TGWarmest municipalities10 °C #12 TG · #542 CHSunniest municipalities38.9% #72 TG · #2091 CHRainiest municipalities956 mm #45 TG · #1799 CHVoter turnout60.4% #22 TG · #554 CHAgainst Switzerland18.6% #44 TG · #627 CHAligned with Switzerland81.4% #30 TG · #838 CHSVP strongholds39.4% #58 TG · #696 CHSP strongholds12% #10 TG · #1295 CHCentre strongholds14.7% #38 TG · #853 CHFDP strongholds10.6% #28 TG · #1324 CHGLP strongholds6.2% #37 TG · #940 CHGreen strongholds9.4% #21 TG · #655 CHLargest by area6.7 km² #61 TG · #1306 CHHighest municipalities461 m #44 TG · #1447 CHSecond homes9.8% #39 TG · #1242 CHOrganic farming10.5% #57 TG · #1191 CHBest-connected municipalities107 min #77 TG · #1816 CHRemotest municipalities107 min #4 TG · #296 CHHighest peaks519 m #64 TG · #1817 CHHighest-lying municipalities462 m #53 TG · #1641 CHGreatest vertical range123 m #58 TG · #1719 CHSteepest municipalities2.6° #64 TG · #1944 CHSolar potential22 GWh #48 TG · #932 CHSolar potential per capita9'498 kWh #52 TG · #1157 CHCheapest electricity24.18 Rp./kWh #2 TG · #253 CHMost expensive electricity24.18 Rp./kWh #78 TG · #1854 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Altnau?
- The postal code of Altnau is 8595.
- What is the tax rate in Altnau?
- The municipal tax multiplier of Altnau is 144% (2026); canton TG levies 109%.
- How much tax do you pay in Altnau?
- A single person without children pays about 13'119 CHF income tax in Altnau on 100'000 CHF gross income (federal, cantonal, municipal), rank 36 of 80 in canton TG. Source: ESTV (2026).
- How many residents does Altnau have?
- Altnau has 2'351 residents (2025).
- How many foreign residents live in Altnau?
- Altnau has 541 foreign residents, a share of 23.01% (2025).
Map
OpenStreetMapAltnau compared with
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