Air Quality Ranking — Lake Forest
Updated June 22, 2026
See how neighborhoods in Lake Forest 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
Cedar Glen8
Air quality remains consistently clean with rare instances of elevated readings, matching the typical levels found throughout Lake Forest.
#2
Grandview Crest8
Air quality in this area is consistently good with very few instances of poor air readings. This level of cleanliness is consistent with the average found throughout Lake Forest.
#3
Lower Greenridge8
Air quality remains consistently good with rare instances of elevated readings. This level of air cleanliness is consistent with the city average, according to iHuus data.
#4
Montbury8
#5
Sycamore Creek8
#6
Upper Greenridge8
#7
Woodside8
Full Lake Forest Air Quality Ranking
City average:8— scores above this beat the city average
| Neighborhood | Score | City Rank | vs. City Avg |
|---|---|---|---|
| Cedar Glen | 8 | #1 | — |
| Grandview Crest | 8 | #2 | — |
| Lower Greenridge | 8 | #3 | — |
| Montbury | 8 | #4 | — |
| Sycamore Creek | 8 | #5 | — |
| Upper Greenridge | 8 | #6 | — |
| Woodside | 8 | #7 | — |
walkability
Lake Forest, CA
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