Updated June 22, 2026
See how neighborhoods in San Luis Obispo compare on air quality. Rankings are based on measured data aggregated across each neighborhood boundary. How air quality is measured →
Air quality is consistently excellent with little to no health concerns for residents. This level of air purity is on par with the rest of San Luis Obispo.
Air quality remains consistently high with minimal pollutants, matching the excellent levels found throughout the rest of San Luis Obispo.
Air quality in this area is excellent and matches the typical standards found throughout San Luis Obispo. Residents can expect very low levels of pollutants and minimal health concerns from local air particulates.
| Neighborhood | Score | City Rank | vs. City Avg |
|---|---|---|---|
| Downtown | 10 | #1 | — |
| Japantown | 10 | #2 | — |
| Little Italy | 10 | #3 | — |
| Mill Street District | 10 | #4 | — |
| Railroad District | 10 | #5 | — |
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