Stuttgart sits in a bowl-shaped valley that traps air, and for years its Neckartor junction logged some of Germany's worst particulate readings — a grievance that shaped the city's civic-tech instincts. Rather than wait for officials, volunteers at the local OK Lab launched luftdaten.info in 2015, teaching residents to build cheap DIY dust sensors and pool the readings as open data. The Stuttgart-born network, renamed Sensor.Community in 2019, has since grown into one of the world's largest citizen air-monitoring efforts, spanning more than 70 countries.

The atlas documents 1 project in Stuttgart: 1 still running without a verdict. The entry carries an evidence grade — the strongest here is peer-reviewed (1 entry) — and links its sources.

All 1 project in Stuttgart

✔ Every published entry is checked against the public sources it cites before publication.

Outcome: 1 ongoing — Evidence: 1 peer-reviewed

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📎 Cite this city

1001 Smart Cities (2026). “Smart-city projects in Stuttgart, Germany.” The Smart City Atlas. https://1001smartcities.org/cities/stuttgart/ (last verified 2026-07-19). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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