Air Quality Ranking — San Marino
Updated June 22, 2026
See how neighborhoods in San Marino compare on air quality. Rankings are based on measured data aggregated across each neighborhood boundary. How air quality is measured →
Top Air Quality Neighborhoods — Ranked
#1
Mission District8
Air quality remains consistently good with rare instances of elevated readings. This level of cleanliness is in line with the San Marino city average according to iHuus data.
#2
East Village8
Air quality is consistently high with rare instances of elevated readings. This level of cleanliness is typical for the San Marino area according to iHuus data.
#3
Huntington Library8
Air quality is consistently good with rare instances of elevated readings. This level of air purity is consistent with the average found throughout San Marino.
#4
Poet's Quarter8
#5
Lacy Estates8
#6
Library District8
#7
Lower Huntington8
#8
Upper East Side8
Full San Marino Air Quality Ranking
City average:8— scores above this beat the city average
| Neighborhood | Score | City Rank | vs. City Avg |
|---|---|---|---|
| Mission District | 8 | #1 | — |
| East Village | 8 | #2 | — |
| Huntington Library | 8 | #3 | — |
| Poet's Quarter | 8 | #4 | — |
| Lacy Estates | 8 | #5 | — |
| Library District | 8 | #6 | — |
| Lower Huntington | 8 | #7 | — |
| Upper East Side | 8 | #8 | — |
walkability
San Marino, CA
iHuus Neighborhood Intelligence Insights
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