Cities with cleanest air in Switzerland
Baar, Switzerland has the lowest pm2.5 — annual mean of the 30 cities compared: 4.22 µg/m³ (Annual AQ statistics (AirBase & e-Reporting merged), 2024-12-31).
Switzerland cities ranked by annual PM2.5 concentration, not by current readings.
- Items compared
- 30
- Countries represented
- 1
- Last checked
- 2026-10-07
Source-backed answers
Compare each answer with its unit and checked date; the complete source ledger is below.
Showing all 30 rows
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| Original rank | City or place | Published value | Source and scope | |
|---|---|---|---|---|
| 1 | Baar, Switzerland | 4.22 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 2 | Emmen, Switzerland | 4.22 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 3 | Kriens, Switzerland | 4.22 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 4 | Zug, Switzerland | 4.22 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 5 | Yverdon-les-Bains, Switzerland | 6.48 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 6 | Sion, Switzerland | 6.8 µg/m³ | 2026-08-04 | Source Scope: city · Period: 2024-12-31 |
| 7 | Bülach, Switzerland | 7.18 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 8 | Kloten, Switzerland | 7.18 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 9 | Uster, Switzerland | 7.18 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 10 | Wetzikon, Switzerland | 7.18 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 11 | Wetzikon (ZH), Switzerland | 7.18 µg/m³ | 2026-10-07 | Source Scope: nearest_station · Period: 2024-12-31 |
| 12 | Dübendorf, Switzerland | 7.2 µg/m³ | 2026-08-04 | Source Scope: city · Period: 2024-12-31 |
| 13 | Allschwil, Switzerland | 7.39 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 14 | Reinach, Switzerland | 7.39 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 15 | Reinach (BL), Switzerland | 7.39 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 16 | Riehen, Switzerland | 7.39 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 17 | St. Gallen, Switzerland | 7.4 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
| 18 | Biel/Bienne, Switzerland | 7.7 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
| 19 | Lausanne, Switzerland | 7.9 µg/m³ | 2026-08-04 | Source Scope: city · Period: 2024-12-31 |
| 20 | Nyon, Switzerland | 7.9 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
| 21 | Zürich, Switzerland | 8 µg/m³ | 2026-08-04 | Source Scope: city · Period: 2024-12-31 |
| 22 | Dietikon, Switzerland | 8.01 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 23 | Horgen, Switzerland | 8.01 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 24 | Regensdorf, Switzerland | 8.01 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 25 | Wädenswil, Switzerland | 8.01 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 26 | Wettingen, Switzerland | 8.01 µg/m³ | 2026-09-23 | Source Scope: nearest_station · Period: 2024-12-31 |
| 27 | Chur, Switzerland | 8.2 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
| 28 | Schlieren, Switzerland | 8.4 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
| 29 | Fribourg, Switzerland | 8.7 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
| 30 | Meyrin, Switzerland | 8.7 µg/m³ | 2026-08-26 | Source Scope: city · Period: 2021-12-31 |
What the numbers say
- Baar, Switzerland leads at 4.22 µg/m³.
- Meyrin, Switzerland sits at the other end with 8.7 µg/m³.
- The middle of this ranking is 7.39 µg/m³, across 30 places that publish the metric.
- The spread between first and last is 4.48 µg/m³.
Quick answer
What does Cities with cleanest air in Switzerland show?
Baar, Switzerland has the lowest pm2.5 — annual mean of the 30 cities compared: 4.22 µg/m³ (Annual AQ statistics (AirBase & e-Reporting merged), 2024-12-31).
How this list is built
Every row is a published pm2.5 — annual mean observation measured in µg/m³, ranked lowest first. The values were observed between 2021 and 2024. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value. Only published cities with at least 20,000 residents and city-level observations qualify.
- Compare the displayed value, unit, source date and geographic grain together.
- A city label does not change a regional observation into a city measurement.
- Rows
- 30 places
- Geographic grain
- 2 grains: nearest_station, city
- Observation period
- 2021-12-31 to 2024-12-31
- Last checked
- 2026-10-07
- With an official source link
- 30 of 30
Cite this page
Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.
APA citation
ImmigrationDB. (2026, October 16). Cities with cleanest air in Switzerland [ImmigrationDB compilation; version 46665dd0ad6aebb42e75993acfb06ecb]. ImmigrationDB. https://immigrationdb.com/reports/switzerland-cities-with-cleanest-air/ Retrieved 2026-10-16. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/BibTeX citation
@misc{immigrationdb_immigrationdb_cities-with-cleanest-air-in-switzerland_ae9d28edf0be,
author = {ImmigrationDB},
title = {Cities with cleanest air in Switzerland},
publisher = {ImmigrationDB},
year = {2026},
date = {2026-10-16},
version = {46665dd0ad6aebb42e75993acfb06ecb},
url = {https://immigrationdb.com/reports/switzerland-cities-with-cleanest-air/},
note = {Retrieved 2026-10-16. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}Markdown citation
[Cities with cleanest air in Switzerland](https://immigrationdb.com/reports/switzerland-cities-with-cleanest-air/) — ImmigrationDB; ImmigrationDB; version 46665dd0ad6aebb42e75993acfb06ecb; retrieved 2026-10-16; built 2026-10-16.This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.