Counties Infested With Hemlock Woolly Adelgid (HWA)

This list summarizes county infestations data from the USDA Forest Service and other published state government sources.

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State	Counties
Alabama	DeKalb
Alaska	Entire State
California	Entire State
Connecticut	Entire State
Delaware	Entire State
Georgia	Banks Dade Dawson Fannin	Gilmer Habersham Hall Lumpkin	Murray Pickens Rabun Stephens	Walker Towns Union White
Kentucky	Bell Breathitt Carter Clay Eliott Fayette Floyd Harlan Jackson	Johnson Knott Knox Laurel Lawrence Lee Leslie Letcher Madison	Magoffin Martin McCreary Menifee Morgan Owsley Perry Pike Powell	Pulaski Rockcastle Rowan Wayne Whitley Wolfe
Massachusetts	Entire State
Maryland	Enitre State
Maine	Maine Towns and Counties Infested with Hemlock Woolly Adelgid
Michigan	Allegan Mason	Muskegon	Oceana	Ottawa
North Carolina	Entire State
New Hampshire	Entire State
New Jersey	Entire State
New York	Albany Allegany Broome Bronx Cattaraugus Cayuga Chataqua Chemung Chenango Columbia Cortland Delaware Dutchess	Erie Fulton Genesee Greene Kings Livingston Monroe Montgomery Nassau New York Onondaga Ontario Orange	Orleans Oswego Otsego Putnam Queens Rensselaer Richmond Rockland Saratoga Schenectady Schoharie Schuyler Seneca	Steuben Suffolk Sullivan Tioga Tompkins Ulster Warren Washington Wayne Westchester Wyoming Yates
Oregon	Entire State
Ohio	Adams Athens Columbiana Cuyahoga Geauga	Highland Hocking Jackson Jefferson Lake	Lawrence Mahoning Meigs Monroe Portage	Scioto Stark Summit Vinton Washington
Pennsylvannia	Adams Alleghany Armstrong Beaver Bedford Berks Blair Bradford Bucks Butler Cambria Cameron Carbon Centre Chester Clarion Clearfield	Clinton Columbia Cumberland Dauphin Delaware Elk Erie Fayette Forest Franklin Fulton Greene Huntingdon Indiana Jefferson Juniata Lackawanna	Lancaster Lawrence Lebanon Lehigh Luzerne Lycoming Mckean Mercer Mifflin Monroe Montgomery Montour Northampton Northumberland Perry Philadelphia Pike	Potter Schuylkill Snyder Somerset Sullivan Susquehanna Tioga Union Venango Warren Washington Wayne Westmoreland Wyoming York
Rhode Island	Entire State
South Carolina	Greenville	Oconee	Pickens	Spartanburg
Tennessee	Anderson Bledsoe Blount Bradley Campbell Carter Claiborne Cocke Cumberland Fentress Franklin	Grainger Greene Grundy Hamblen Hamilton Hancock Hawkins Jefferson Johnson Knox Loudon	Marion McMinn Meigs Monroe Morgan Overton Pickett PolkPutnam Rhea Roane Scott	Sequatchie Sevier Sullivan Unicoi Union Van Buren Warren Washington White
Vermont	Bennington	Windham	Windsor
Virginia	Abelmarle Alexandria Alleghany Amherst Appomattox Arlington Augusta Bath Bedford Bedford City Bland Botetourt Bristol Buchanan Buckingham Buena Vista Campbell Caroline Carroll Charlottsville Chesterfield Clarke Clifton Forge	Covington Craig Culpeper Danville Dickenson Essex Fairfax Fairfax City Falls Church Fauquier Floyd Fluvanna Franklin Frederick Galax Giles Grayson Greene Halifax Hanover Harrisonburg Henrico Henry	Highland King William Lee Lexington Loudon Lunenburg Lynchburg Madison Manassas Manassas Park Martinsville Montgomery Nelson Northumberland Norton Orange Page Patrick Pittsylvania Prince William Pulaski Radford Rappahannock	Richmond Richmond City Roanoke Roanoke City Rockbridge Rockingham Russel Salem Scott Shenandoah Smyth Spotsylvania Staunton Tazewell Warren Washington Waynesboro Winchester Wise Wythe
Washington	Entire State
West Virginia	Barbour Berkeley Boone Braxton Cabell Calhoun Clay Doddridge Fayette Gilmer Grant Greenbrier Hampshire Hardy	Harrison Jackson Jefferson Kanawha Lewis Lincoln Logan Marion Marshall Mason McDowell Mercer Mineral Mingo	Monongalia Monroe Morgan Nicholas Ohio Pendleton Pleasants Pocahontas Preston Putnam Raleigh Randolph Ritchie Roane	Summers Taylor Tucker Tyler Upsher Wayne Wirt Webster Wetzel Wood Wyoming

Updated March 2023