City · Aargau
The land-use survey ending in 2025 shows how the area is shared between buildings, woodland, farmland and water.
44%
A view of the rental market, drawn from 6 apartment and house listings. These are advertised rents, before any individual negotiation.
CHF 20.9
28 Oct 2026
0.73%
| 2015 | 3.81% |
|---|---|
| 2016 | 5.38% |
| 2017 | 5.26% |
| 2018 | 5.45% |
| 2019 | 3.28% |
| 2020 | 4.34% |
| 2021 | 4.32% |
| 2022 | 2.04% |
| 2023 | 1.71% |
| 2024 | 0.74% |
| 2025 | 1.77% |
| 2026 | 0.73% |
Figures of the municipality of Kölliken · Median of 6 listings for flats and houses · middle half 17.1–20.9 · as of 28 Oct 2026
Figures of the municipality of Kölliken · Median of 11 listings for flats and houses · middle half 6'547–9'275 · as of 28 Oct 2026
The population grew by 24.6% between 2010 and 2025. The annual record shows how that change unfolded.
5'133
| 2010 | 4'119 |
|---|---|
| 2011 | 4'193 |
| 2012 | 4'262 |
| 2013 | 4'265 |
| 2014 | 4'303 |
| 2015 | 4'272 |
| 2016 | 4'336 |
| 2017 | 4'342 |
| 2018 | 4'476 |
| 2019 | 4'581 |
| 2020 | 4'559 |
| 2021 | 4'659 |
| 2022 | 4'757 |
| 2023 | 5'035 |
| 2024 | 5'106 |
| 2025 | 5'133 |
5'133
| 2010 | 4'119 |
|---|---|
| 2011 | 4'193 |
| 2012 | 4'262 |
| 2013 | 4'265 |
| 2014 | 4'303 |
| 2015 | 4'272 |
| 2016 | 4'336 |
| 2017 | 4'342 |
| 2018 | 4'476 |
| 2019 | 4'581 |
| 2020 | 4'559 |
| 2021 | 4'659 |
| 2022 | 4'757 |
| 2023 | 5'035 |
| 2024 | 5'106 |
| 2025 | 5'133 |
24.6%
| 2010 | 15.9% |
|---|---|
| 2011 | 16.5% |
| 2012 | 17.7% |
| 2013 | 18.3% |
| 2014 | 18.9% |
| 2015 | 18.7% |
| 2016 | 19.1% |
| 2017 | 19.8% |
| 2018 | 20.2% |
| 2019 | 20.6% |
| 2020 | 20.7% |
| 2021 | 21.4% |
| 2022 | 22.1% |
| 2023 | 23.7% |
| 2024 | 24.2% |
| 2025 | 24.6% |
As of 2024 · The reported area accounts for 1'408 full-time-equivalent jobs. This describes employment located here, rather than the number of residents who work.
1'408
| 2011 | 1'016 |
|---|---|
| 2012 | 1'004 |
| 2013 | 1'026 |
| 2014 | 1'014 |
| 2015 | 1'031 |
| 2016 | 1'120 |
| 2017 | 1'165 |
| 2018 | 1'178 |
| 2019 | 1'199 |
| 2020 | 1'213 |
| 2021 | 1'233 |
| 2022 | 1'341 |
| 2023 | 1'424 |
| 2024 | 1'408 |
Single person without children, gross wage CHF 100'000 · Canton, municipality and personal tax, without church, federal and wealth tax · tax year 2026
CHF 11'838
/ year
Figures of the municipality of Kölliken · Single person without children, gross wage CHF 100'000 · Canton, municipality and personal tax, without church, federal and wealth tax · tax year 2026
119%
| 2010 | 117% |
|---|---|
| 2011 | 117% |
| 2012 | 117% |
| 2013 | 117% |
| 2014 | 117% |
| 2015 | 117% |
| 2016 | 117% |
| 2017 | 117% |
| 2018 | 114% |
| 2019 | 114% |
| 2020 | 114% |
| 2021 | 114% |
| 2022 | 114% |
| 2023 | 114% |
| 2024 | 114% |
| 2025 | 114% |
| 2026 | 119% |
CHF 51'900
| 2010 | CHF 46'900 |
|---|---|
| 2011 | CHF 47'500 |
| 2012 | CHF 47'900 |
| 2013 | CHF 47'300 |
| 2014 | CHF 48'500 |
| 2015 | CHF 49'100 |
| 2016 | CHF 50'500 |
| 2017 | CHF 50'300 |
| 2018 | CHF 50'600 |
| 2019 | CHF 51'700 |
| 2020 | CHF 51'450 |
| 2021 | CHF 50'900 |
| 2022 | CHF 51'900 |
CHF 58'400
| 2010 | CHF 52'600 |
|---|---|
| 2011 | CHF 53'700 |
| 2012 | CHF 54'400 |
| 2013 | CHF 53'900 |
| 2014 | CHF 54'050 |
| 2015 | CHF 54'800 |
| 2016 | CHF 57'300 |
| 2017 | CHF 56'400 |
| 2018 | CHF 57'700 |
| 2019 | CHF 57'750 |
| 2020 | CHF 57'700 |
| 2021 | CHF 56'950 |
| 2022 | CHF 58'400 |
103%
| 2010 | 109% |
|---|---|
| 2011 | 109% |
| 2012 | 109% |
| 2013 | 109% |
| 2014 | 109% |
| 2015 | 109% |
| 2016 | 109% |
| 2017 | 109% |
| 2018 | 112% |
| 2019 | 112% |
| 2020 | 112% |
| 2021 | 112% |
| 2022 | 112% |
| 2023 | 112% |
| 2024 | 112% |
| 2025 | 111% |
| 2026 | 103% |
Federal data — BFS (STATPOP, STATENT, land use), ESTV, BAKOM, ARE. Asking rents and prices: Homematch, from listings on Swiss portals.
Federal Statistical Office · 2020
Strongest party: SVP · 42.1% · 2023
Source: FSO
Annual mean 10.0°C with 920 mm of rain. Warmest in July (19.4°C), coldest in January (1.2°C). Station: Buchs / Aarau, 387 m.
Buchs / Aarau · 387 m.a.s.l. · 1991–2020 normals · MeteoSchweiz
Sunshine
1'529 h
Precipitation
920 mm
Mean annual temperature at Luzern has risen by +2.4°C between the first 30 observed years (1871–1900) and the most recent (1996–2025).
Source: MeteoSchweiz NBCN