What is the postal code of Castel San Pietro?

Castel San Pietro has 6 postal codes: 6825, 6850, 6873, 6874, 6875, 6877.

What is the tax rate in Castel San Pietro?

The municipal tax multiplier of Castel San Pietro is 70% (2026); canton TI levies 100%.

How much tax do you pay in Castel San Pietro?

A single person without children pays about 13'011 CHF income tax in Castel San Pietro on 100'000 CHF gross income (federal, cantonal, municipal), rank 16 of 100 in canton TI. Source: ESTV (2026).

How many residents does Castel San Pietro have?

Castel San Pietro has 2'241 residents (2025).

How many foreign residents live in Castel San Pietro?

Castel San Pietro has 301 foreign residents, a share of 13.43% (2025).

Switzerland · Canton TI · Distretto di Mendrisio

Castel San Pietro

6825–6877

TI CANTON6825 6850 6873 6874+2 PLZ

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN · swissTLM3D · swissTLMRegio

Demographics

BFS · 2025

Women

1'140 50.9%

Men

1'101 49.1%

Children & youth (0–19)

401 17.9%

Swiss citizens

1'940 86.6%

Foreign residents

301 13.4%

Population density

189 pop./km²

0–19 · 401 · 17.9%20–64 · 1'277 · 57.0%65+ · 563 · 25.1%

Foreign residents 13.4%0%64.0%

Population change 2025: −21 (−0.9%) · 18 births · 22 deaths · net migration −7

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

Vote results for Castel San Pietro

BFS

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 Distretto di Mendrisio: 30.8% Yes

25.8% YesNo 74.2%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Distretto di Mendrisio: 49.8% Yes

49.2% YesNo 50.8%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Distretto di Mendrisio: 53.1% Yes

50.9% YesNo 49.1%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Distretto di Mendrisio: 50.4% Yes

51.4% YesNo 48.6%

14.06.2026Iniziativa popolare costituzionale elaborata "Si alla neutralizzazione dell'aumento dei valori di stima"Cantonal TI● Accepted · 74.0% YesDistrict Distretto di Mendrisio: 73.6% Yes

74.0% YesNo 26.0%

14.06.2026Iniziativa popolare legislativa generica "Per il rimborso delle cure dentarie"Cantonal TI● Rejected · 29.8% YesDistrict Distretto di Mendrisio: 31.5% Yes

30.6% YesNo 69.4%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Distretto di Mendrisio: 44.0% Yes

44.0% YesNo 56.1%

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 Distretto di Mendrisio: 31.2% Yes

27.9% YesNo 72.1%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Distretto di Mendrisio: 46.9% Yes

40.6% YesNo 59.4%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Distretto di Mendrisio: 53.4% Yes

50.5% YesNo 49.5%

All federal votes →

Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023

Mitte23.6% · strongest party

Mitte23.6%

FDP17.0%

SVP16.9%

SP12.0%

Übrige10.9%

sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026

Taxes 2026

ESTV

Municipal tax multiplier70%

Cantonal tax multiplier100%

70%TI range 56%100%

Tax rank 21 of 100 in canton Ticino

Tax burden

Single, 100'000 CHF gross income

13'011 CHF(13%)

Rank 16 of 100 in the canton · 533 of 2110 in Switzerland

Median canton 14'007 CHF · median Switzerland 15'290 CHF

Cheapest Porza 12'081 CHF · most expensive Bosco/Gurin 15'003 CHF

Income tax as % of gross income

100'000 CHF:13'011 CHF(~13%)

Castel San PietroCanton range TicinoSwitzerland median

Show data table

Gross income	Castel San Pietro	Ticino	Switzerland median
40'000	4.2%	3.9–4.9%	5.4%
50'000	6.3%	5.8–7.3%	7.8%
60'000	8.1%	7.5–9.4%	10.5%
70'000	9.6%	8.8–11.1%	11.9%
80'000	10.8%	10–12.6%	13.1%
90'000	11.9%	11–13.8%	14.1%
100'000	13%	12.1–15%	15.3%
110'000	13.9%	13–16%	16.3%
120'000	14.8%	13.8–17%	17.2%
130'000	15.7%	14.6–17.9%	18.1%
140'000	16.5%	15.4–18.8%	19%
150'000	17.2%	16.1–19.7%	19.7%
175'000	18.9%	17.7–21.5%	21.6%
200'000	20.3%	19.1–23.1%	23.2%
225'000	21.6%	20.3–24.4%	24.6%
250'000	22.6%	21.3–25.5%	25.8%
275'000	23.6%	22.2–26.6%	26.8%
300'000	24.5%	23–27.5%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–20208.4 °C

Precipitation 1991–20201'659 mm

8.4 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

1'613 m

Mean elevation

772 m

Relief

1'337 m

Mean slope

24.7°

Flat share

5.8%

South-facing

42.2%

Above 2000 m

0.0%

Relief 1'337 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

Solar potential

BFE

Roof potential

29 GWh/yr

Roofs + façades

39.4 GWh/yr

≈ households powered

6'400

Per inhabitant

12'923 kWh/yr

29 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

25.91 Rp./kWh

Energy

10.35 Rp./kWh

Grid usage

9.63 Rp./kWh

Levies + grid surcharge

4.52 Rp./kWh

25.91 Rp./kWh10.5645.88

Canton median 25.91 Rp./kWhSwiss median 26.53 Rp./kWh

Network operator Aziende Industriali di Lugano (AIL) SA

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 · 2024

Premium regionRegion 1

Standard model, deductible 300740 CHF/mo

Ø premium in canton Ticino498 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Castel San Pietro →Canton Ticino →Premiums explained →

Premiums are set per canton and premium region. This area lies in premium region 1 of canton Ticino. Shown is the average adult premium paid across the whole canton Ticino (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

1.48 %

Second homes

15.7 %

Avg. rooms

4.1

Dwellings

1'288

Built before 194636.2%

Built since 200116.1%

1.48 %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

1'790

Workplaces

225

Services share

37.4 %

Jobs by sector: Primary 64 (3.6%) · Secondary 1'056 (59.0%) · Tertiary 670 (37.4%)

STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025

Farms

Organic share

4 %

Farmland

148 ha

Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM

Major centrePT 71 min · Car 39 min

AgglomerationPT 40 min · Car 24 min

Remoteness 24/100 in canton

National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0

BFS municipality number5249

Websitecastelsanpietro.ch ↗

DistrictDistretto di Mendrisio

Wikidata · continuously updated, retrieved 24.09.2026

Where Castel San Pietro ranks

Largest municipalities2'241 #43 TI · #910 CH Growing municipalities-0.9% #75 TI · #1789 CH Shrinking municipalities-0.9% #26 TI · #323 CH Jobs per resident0.8 #19 TI · #159 CH Families & children17.9% #36 TI · #1690 CH Age structure25.1% #53 TI · #395 CH Women share50.9% #51 TI · #466 CH Foreign residents13.4% #78 TI · #1412 CH Population density189/km² #57 TI · #1068 CH Tax burden13'011 #17 TI · #534 CH Taxes70% #21 TI Warmest municipalities8.4 °C #78 TI · #1616 CH Sunniest municipalities53.9% #75 TI · #126 CH Rainiest municipalities1'659 mm #66 TI · #128 CH Voter turnout59.3% #31 TI · #671 CH Against Switzerland24.5% #36 TI · #275 CH Aligned with Switzerland75.5% #44 TI · #1212 CH SVP strongholds16.9% #37 TI · #1919 CH SP strongholds12% #50 TI · #1296 CH Centre strongholds23.6% #18 TI · #393 CH FDP strongholds17% #74 TI · #659 CH GLP strongholds1.2% #61 TI · #1910 CH Green strongholds8.6% #51 TI · #788 CH Largest by area11.8 km² #40 TI · #835 CH Highest municipalities442 m #41 TI · #1605 CH Second homes15.7% #74 TI · #525 CH Organic farming4% #45 TI · #1559 CH Best-connected municipalities71 min #77 TI · #1125 CH Remotest municipalities71 min #24 TI · #1012 CH Highest peaks1'613 m #44 TI · #426 CH Highest-lying municipalities772 m #41 TI · #644 CH Greatest vertical range1'337 m #43 TI · #378 CH Steepest municipalities24.7° #43 TI · #271 CH Solar potential29 GWh #36 TI · #706 CH Solar potential per capita12'923 kWh #41 TI · #640 CH Cheapest electricity25.91 Rp./kWh #49 TI · #862 CH Most expensive electricity25.91 Rp./kWh #87 TI · #1280 CH

Postal codes (6)

swisstopo

Localities

swisstopo · 8

Campora6875 Capolago6825 Casima6875 Castel San Pietro6874 Coldrerio6877 Corteglia6873 Mendrisio6850 Monte6875

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Castel San Pietro?: Castel San Pietro has 6 postal codes: 6825, 6850, 6873, 6874, 6875, 6877.
What is the tax rate in Castel San Pietro?: The municipal tax multiplier of Castel San Pietro is 70% (2026); canton TI levies 100%.
How much tax do you pay in Castel San Pietro?: A single person without children pays about 13'011 CHF income tax in Castel San Pietro on 100'000 CHF gross income (federal, cantonal, municipal), rank 16 of 100 in canton TI. Source: ESTV (2026).
How many residents does Castel San Pietro have?: Castel San Pietro has 2'241 residents (2025).
How many foreign residents live in Castel San Pietro?: Castel San Pietro has 301 foreign residents, a share of 13.43% (2025).

Map

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