Vicinus

Aargau · Bezirk Baden · BFS commune no. 4038[7]

Coat of arms of ObersiggenthalObersiggenthal

Left of CHF 100’000CHF 80’172per year, after tax and insurance
Income tax[1]CHF 13’05913.1% of income
Health insurance[3]CHF 564adult, per month
Residents[4]9’02033.0% foreign nationals
Nearest job hub[6]15 minto Baden

Single person, gross income CHF 100’000, median insurer. See how Obersiggenthal ranks for your household →
Compare Obersiggenthal with another commune →

BadenEnnetbadenFreienwilUntersiggenthalWürenlingenEndingenLengnau (AG) BadenEnnetbadenWürenlingenEndingenLengnau (AG) Obersiggenthal

Obersiggenthal has 9’020 residents, making it the 18th largest of the 196 communes in the canton of Aargau.

33% of residents are foreign nationals, above the Swiss average of 28%.

A single person earning CHF 100’000 pays about CHF 13’059 a year in income tax here, less than in 2 of its 7 neighbouring communes.

The median standard adult health insurance premium is CHF 564 a month, about the Swiss median of CHF 564.

The closest of our job hubs by public transport is Baden, about 15 minutes away on a weekday morning.

Income tax

Income tax 2026 (federal, cantonal and communal; no church tax) for an employee with gross labour income of…[1]

ProfileCHF 50’000CHF 80’000CHF 100’000CHF 150’000CHF 200’000CHF 300’000
Single, no children3’563
7.1%
8’878
11.1%
13’059
13.1%
25’371
16.9%
39’818
19.9%
71’973
24.0%
Married, single income, no children1’393
2.8%
4’691
5.9%
7’697
7.7%
17’478
11.7%
31’110
15.6%
61’842
20.6%
Married, dual income (70/30), no children1’073
2.1%
4’273
5.3%
7’189
7.2%
16’442
11.0%
28’458
14.2%
58’578
19.5%
Married, single income, 2 children23
0.0%
2’030
2.5%
4’060
4.1%
12’650
8.4%
24’870
12.4%
55’404
18.5%

Tax multipliers 2026: canton 103%, commune 110%. Church tax, if you are a member: Protestant 18%, Roman Catholic 19%.[2]

Health insurance premiums 2027

Monthly basic insurance premium, standard model, single premium region of Aargau.[3]

Cheapest insurerMedian insurer
Adult (26+), CHF 300 deductible, without accident coverCHF 517CHF 564
Child (0–18), CHF 0 deductible, with accident coverCHF 121CHF 143

Commute to job hubs

Median door-to-door time by public transport and on foot, weekday departures every minute 07:00–08:30, from the commune's busiest station. Includes waiting for the next departure.[6]

HubMinutes
Baden15
Dietikon34
Zürich Altstetten42
Schlieren44
Zürich HB47
Aarau51
Zürich Oerlikon53
Zürich Airport58

Hubs more than 3 hours away are not listed. Commute to any commune or postcode: Ranking →

Compared with neighbouring communes

Single person, gross income CHF 100’000: income tax per year and median adult premium per month (CHF).

CommuneTax CHF/yr[1]Premium CHF/mo[3]Population[4]
Baden11’93956424’012
Ennetbaden12’0995643’801
Würenlingen12’5265645’323
Lengnau (AG)12’6855642’944
Untersiggenthal12’7925647’875
Obersiggenthal13’0595649’020
Endingen13’1125642’758
Freienwil13’2725641’117

Population

Residents9’020[4]
Foreign nationals33.0%
Aged 0–1920.3%
Aged 20–6458.6%
Aged 65+21.1%
Area8.36 km²[5]

Sources

  1. Source: Federal Tax Administration (FTA/ESTV), tax burden statistics 2026. Tax burden in the communes, tax year 2026; reference date tax year 2026; downloaded 2026-11-03. Licence.
  2. Source: Federal Tax Administration (FTA/ESTV), tax multipliers 2026. Tax multipliers (income tax), tax year 2026; reference date tax year 2026; downloaded 2026-11-03. Licence.
  3. Source: Federal Office of Public Health (FOPH), health insurance premiums 2027. Health insurance premiums 2027 (mandatory basic insurance); reference date 2027 premiums (published Sept 2026); downloaded 2026-11-03. Licence.
  4. Source: Federal Statistical Office (FSO/BFS), STATPOP 2025. Permanent resident population (STATPOP) 2025; reference date 2025-12-31; downloaded 2026-11-03. Licence.
  5. © swisstopo. swissBOUNDARIES3D (swissboundaries3d_2026-01); reference date 2026-01-01; downloaded 2026-11-03. Licence.
  6. Timetable: opentransportdata.swiss; walking network © OpenStreetMap contributors. Public transport commute to job hubs (computed); reference date timetable fahrplan-2026-gtfs2020, 2026-11-03 07:00–08:30; downloaded 2026-11-02. Licence.
  7. Source: Federal Statistical Office (FSO/BFS), Swiss official commune register. Swiss official commune register (historicized); reference date 2026-11-03; downloaded 2026-11-03. Licence.
  8. Wikimedia Commons. Coats of arms of Swiss communes; reference date 2026-11-03; downloaded 2026-11-03. Licence.

Coat of arms: Wappen Obersiggenthal AG.svg, ARK, Public domain. Shown to identify the commune; Vicinus is not affiliated with it.