5 Best US Cities for People With Allergies

2. Seattle, Washington

Total Score by AAFA: 54.43

Percentage of Good & Moderate AQI Days: 96.7%

Population: 733,919

Seattle is known for its mild climate and comparatively low levels of airborne allergens compared to other parts of the US. Seattle’s proximity to the Pacific Ocean helps to reduce levels of airborne allergens, as sea breezes aid in clearing the air of pollen and other allergens.