Emerald Ash Borer Distribution in Iowa (confirmed)

Encyclopedia Article

Map of Iowa showing current distribution of confirmed EAB infestations as of February 23, 2021

Brown circles on the distribution map indicate a 15-mile radius around confirmed discoveries of EAB.  Ash trees within 15 miles of a confirmed EAB site are considered to be at risk of attack and preventive treatments are suggested for healthy, vigorous and valuable trees within this risk zone.  It may be premature to treat ash trees outside these areas.  Click here to learn more about the emerald ash borer.

Where has EAB been found in Iowa? EAB infestations have been confirmed in the following Iowa counties.

Adair – Bridgewater (Mormon Trail Park), Lake Orient Recreational Area (2016); Greenfield Lake (2018)

Dubuque – Dubuque (2015), Dyersville (2017)

Marion – Maryville (2014), Marion Co. Park (2017)

Adams – Rural area north of Cromwell (2016)

Fayette – Oelwein (2017)

Marshall – Rural area N of Le Grand (2018), Marshalltown (2018)

Allamakee –New Albin, Lansing, Black Hawk Point, Plough Slough (2010)

Floyd – Charles City (2017)

Mills – Glenwood (2020)

Appanoose – Moravia (2014)

Franklin – Hampton (2019)

Monroe – Private property (2014), Albia (2017)

Audubon – Rural Exira (2020)

Fremont - rural Farragut (2021)

Montgomery – Rural area NW of Red Oak (2015); rural area north of Villisca (2016)

Benton – Belle Plaine (2017), Newhall (2020)

Greene – East of Grand Junction (2017)

Muscatine – Muscatine (2014), Wiese Slough WMA, Rural Fairport, rural Nichols (2020)

Black Hawk–Waterloo (2014), Deerwood Park (2017)

Grundy – Dike (2018)

Page – Clarinda (2018)

Boone – Boone (2014), Ledges State Park (2017)

Guthrie – Casey (2020)

Polk – Urbandale, West Des Moines (2015); Des Moines, Mitchellville, Windsor Heights (2016), Johnston (2018), Clive (2019), Ankeny (2020), Altoona (2020)

Bremer–Waverly (2014)

Hamilton – Rural area near Randall (2018), Stratford City Park (2020)

Pottawattamie – Council Bluffs (2018), rural Minden (2019), rural Walnut (2020)

Buchanan – Winthrop (2018)

Hardin – Eldora (2018)

Poweshiek – Grinnell (2015), Montezuma (2017)

Buena Vista – Alta (2017)

Harrison – Logan, Missouri Valley (2016)

Ringgold – west of Tingley (2017)

Butler – Clarksville (2017)

Henry – Mt. Pleasant (2014), Geode State Park (2017)

Sac – rural site outside Schaller (2020)

Carroll – Rural area west of Carroll (2018)

Howard – Cresco (2017)

Scott – Davenport (2015),Bettendorf (2016), Scott Co. Park (2017), West Lake Park (2017)

Cass – Rural areas near Massena and Anita (2019), Lake Anita State Park (2020)

Iowa – Lake Iowa Park (2016), north of Middle Amana (2017), Randolph Wildlife Management Area (2019)

Shelby – Shelby (2020)

Cedar – Mechanicsville (2013)

Jackson – Bellevue (2017), Maquoketa (2020), rural Miles (2020)

Story – Story City (2014), Ames (2018), Hickory Grove Park/Colo, Nevada (2020)

Cerro Gordo – Mason City (2020)

Jasper – Newton (2014), Rock Creek State Park (2017)

Tama – Rural area north of Le Grand (2018)

Chickasaw – New Hampton (2019)

Jefferson – Fairfield (2013)

Taylor – Clearfield (2018)

Cherokee County, Aurelia (2021)

Johnson – Coralville, Iowa City (2016), south of Oxford (2017); Hawkeye Wildlife Management Area, North Liberty (2019)

Union – Creston (2013)

Clarke – Osceola (2016)

Jones – Anamosa (2019)

Van Buren – Birmingham (2016)

Clayton – Marquette, Monona (2017), Guttenberg (2020)

Keokuk – Hedrick (2015)

Wapello – Eddyville (2014), Eldon (2017)

Clinton – Clinton (2015), De Witt (2019), Syracuse WMA (2020)

Lee – Fort Madison (2015)

Warren – Rural Milo (2017)

Crawford – Denison (2018)

Linn – Cedar Rapids (2015), Toddville (2016), Lisbon (2017), Marion (2018), Hiawatha (2019)

Washington – Brighton (2016), Washington (2017)

Dallas – Waukee (2015), rural De Soto (2019)

Louisa – Rural area in the central part of the county (2016), Columbus Junction (2020)

Wayne – North of Corydon (2017), rural Seymour (2021)

Davis – Rural area north of Bloomfield (2015)

Lucas – Private woodlot (2014), Chariton (2016)

Webster – Fort Dodge (2020)

Decatur – Rural area north of Grand River (2017)

Lyon - Rural Inwood (2021)

Winneshiek – Decorah (2016)

Delaware – Edgewood (2018)

Madison – Rural site south of Winterset (2017), Winterset (2018), Clanton Creek Rec Area (2019)

Wright - rural Dows (2021)

Des Moines – Burlington (2013)

Mahaska – Eddyville (2014), rural area NW of Oskaloosa (2015)

 

 

Last Reviewed: 
February, 2021
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