Street trees, structure & pollen potential

Explore what is planted, where larger trees concentrate, and which neighborhoods contain tree taxa of documented allergenic concern. This is a spatial screening tool—not a pollen forecast or clinical risk map.

—living street trees

—recorded species

—priority-taxa share

Neighborhood lens

Color census tracts by

Individual-tree season

All 652,168 individual trees are available; zoom in to reveal the complete inventory.

How allergy is represented

Priority: oak, plane, mulberry, and birch—four taxa that jointly represented 71% of airborne tree pollen measured in NYC (2009–2012). Concern: other taxa marked “of allergenic concern” in the same NYC study. Unknown/minor, low-concern, and unclassified trees stay separate.

All 652,168 living trees are available as individual vector-tile features. At city scale, points are thinned only for legibility; zooming to street scale reveals the complete inventory. The census covers street trees, not yards, parks, or the complete urban forest.

Katz et al. 2024 · NYC Tree Census · earlier corridor pilot