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Best Air Quality ZIP Codes in California
Top 50 best air quality zip codes in america in California. ZIP-level data from EPA Air Quality Index.
Rankings for California will be available when EPA Air Quality Index data is refreshed. In the meantime, see the national best air quality zip codes in america ranking.
Methodology
This ranking is based on EPA Air Quality Index data, scoped to California ZIP codes. Up to 50 ZIP codes are listed, ordered by median aqi. Data is refreshed periodically. See our methodology page for full details on data sources and update frequency.