U.S. States with the Most Birch Trees: Northern Forests Dominate

Birch Distribution in the United States

Birches (Betula spp.) are northern, cool-climate trees. The eight states with the highest birch volume (USDA FIA data) are all in the Northeast, Great Lakes, and Upper Midwest.

Top 8 States by Birch Growing Stock Volume

1. Maine — Paper birch, yellow birch, heart-leaved birch. ~30% of US birch volume.
2. Minnesota — Paper birch (North Woods), yellow birch (NE).
3. Wisconsin — Paper birch, yellow birch (northern counties).
4. Michigan — Upper Peninsula: paper, yellow, river birch.
5. New Hampshire — Yellow birch (dominant in White Mtns), paper, sweet birch.
6. Vermont — Yellow birch (Green Mtns), paper, sweet.
7. New York — Adirondacks/Catskills: yellow, paper, sweet, river birch.
8. Pennsylvania — Allegheny/ Pocono: sweet, yellow, paper, river birch.

Key Species & Niches

• Paper birch (B. papyrifera): Boreal/transition zone; pioneer after fire/logging.
• Yellow birch (B. alleghaniensis): Long-lived, shade-tolerant; northern hardwood climax.
• Sweet birch (B. lenta): Appalachians; wintergreen oil source.
• River birch (B. nigra): Floodplains; southern range to FL/TX.
• Gray birch (B. populifolia): NE pioneer; short-lived.

Why These States?

• Cool summers, adequate moisture, acidic soils (spodosols, inceptisols).
• Glacial history: recolonized post-Wisconsinan; southern limit ~40° N (PA/NJ).
• Disturbance regime: wind, fire, logging maintain early-successional paper birch.

Climate Change Outlook

Birch range shifting north/elevation. Paper birch declining in southern range (PA, lower MI). Yellow birch migrating into Canada. Assisted migration trials in MN, ME.