Allergy Locator

Toggle an allergen to see its severity across 168 US cities.

Ask in plain language

e.g. “I’m badly allergic to ragweed and a bit to grass, show me June”. Sets your allergy view below — geographic modeling only, see the disclaimer below. Uses your own saved API key (About → Methodology).

GrassesGrassTall fescue(modeled)Orchard grass(modeled)Sweet vernal grass(modeled)Redtop(modeled)

WeedsSagebrush(modeled)Kochia / Russian thistle(modeled)Mugwort(modeled)Dock / sorrel(modeled)Nettle(modeled)Common ragweed(modeled)Redroot pigweed(modeled)Lambsquarters(modeled)English plantain(modeled)

TreesRed oak(modeled)White ash(modeled)Red maple(modeled)Loblolly pine(modeled)Black walnut(modeled)American sycamore(modeled)Red alder(modeled)Shagbark hickory(modeled)Live oak(modeled)American elm(modeled)Eastern redcedar / juniper(modeled)River birch(modeled)Boxelder(modeled)

MoldCladosporium (mold)(modeled)Alternaria (mold)(modeled)

Click a city on the map to see its allergen detail.

Timeframe

Directional, not medical advice. No place cures you — places only tax you more or less. Get your own panel read by an allergist and treat this map as one input among many.