Iowa USDA Plant Hardiness Zones Map

 Iowa State USDA Growing Zones can be figured out by looking at the Iowa USDA zone map for plant hardiness and reading this table below. Hardiness Zones are helpful in deciding which Trees and Plants will survive in an particular area.

If you want more details about a city and want to know your Garden or Farm USDA Planting Zone look at the name of your city listed here below in the table with the specific zone number near it.

Now you can click on that zone number to find the most common and best growing zone-compatible fruit trees, vegetables and flowers in each area of Iowa.

Iowa Plant Hardiness Zones include 4b to 6a. Please click on the number near your city name in the table to learn more about the plants that can grow in your neighbourhood.

What Planting Zone AM I In?

List of Hardiness Zones for Iowa Cities and Areas in alphabetical order

A Ackley Zone 5a Ackworth Zone 5a Adair Zone 5a Adair County Zone 5a, 5b Adams County Zone 5a, 5b Adel Zone 5a Afton Zone 5a Agency Zone 5b Ainsworth Zone 5b Akron Zone 5a Albert City Zone 5a Albia Zone 5b Albion Zone 5a Alburnett Zone 5a Alden Zone 5a Alexander Zone 5a Algona Zone 5a Allamakee County Zone 4b, 5a Alleman Zone 5a Allerton Zone 5b Allison Zone 5a Alta Zone 5a Alta Vista Zone 5a Alton Zone 5a Altoona Zone 5a Alvord Zone 4b Amana Zone 5a Ames Zone 5a Anamosa Zone 5a Anderson Zone 5b Andover Zone 5a Andrew Zone 5a Anita Zone 5a Ankeny Zone 5a Anthon Zone 5a Aplington Zone 5a Appanoose County Zone 5b Arcadia Zone 5a Archer Zone 4b Aredale Zone 5a Arion Zone 5a Arispe Zone 5b Arlington Zone 4b Armstrong Zone 5a Arnolds Park Zone 5a Arthur Zone 5a Asbury Zone 5a Ashton Zone 4b Aspinwall Zone 5a Atalissa Zone 5b Athelstan Zone 5b Atkins Zone 5a Atlantic Zone 5a Auburn Zone 5a Audubon Zone 5a Audubon County Zone 5a Aurelia Zone 5a Aurora Zone 5a Avoca Zone 5a Ayrshire Zone 5a	I Ida County Zone 5a Ida Grove Zone 5a Imogene Zone 5b Independence Zone 5a Indianola Zone 5a Inwood Zone 4b Ionia Zone 5a Iowa City Zone 5b Iowa County Zone 5a, 5b Iowa Falls Zone 5a Ireton Zone 4b Irvington Zone 5a Irwin Zone 5a	Q Quasqueton Zone 5a Quimby Zone 5a
B Badger Zone 5a Bagley Zone 5a Baldwin Zone 5a Balltown Zone 5a Bancroft Zone 5a Bankston Zone 5a Barnes City Zone 5a Barnum Zone 5a Bartlett Zone 5b Bassett Zone 5a Batavia Zone 5b Battle Creek Zone 5a Baxter Zone 5a Bayard Zone 5a Beacon Zone 5b Beaconsfield Zone 5b Beaman Zone 5a Beaver Zone 5a Beaverdale Zone 5b Bedford Zone 5a Belle Plaine Zone 5a Bellevue Zone 5a Belmond Zone 5a Bennett Zone 5a Bentley Zone 5a Benton Zone 5b Benton County Zone 5a Berkley Zone 5a Bernard Zone 5a Bertram Zone 5a Bettendorf Zone 5b Bevington Zone 5a Birmingham Zone 5b Black Hawk County Zone 5a Blairsburg Zone 5a Blairstown Zone 5a Blakesburg Zone 5b Blanchard Zone 5b Blencoe Zone 5a Blockton Zone 5b Bloomfield Zone 5b Blue Grass Zone 5b Bode Zone 5a Bolan Zone 5a Bonaparte Zone 5b Bondurant Zone 5a Boone Zone 5a Boone County Zone 5a Bouton Zone 5a Boxholm Zone 5a Boyden Zone 4b Braddyville Zone 5b Bradford Zone 5a Bradgate Zone 5a Brandon Zone 5a Brayton Zone 5a Breda Zone 5a Bremer County Zone 5a Bridgewater Zone 5a Brighton Zone 5b Bristow Zone 5a Britt Zone 5a Bronson Zone 5a Brooklyn Zone 5a Brunsville Zone 5a Buchanan County Zone 4b, 5a Buck Grove Zone 5a Buckeye Zone 5a Buena Vista County Zone 5a Buffalo Zone 5b Buffalo Center Zone 5a Burchinal Zone 5a Burlington Zone 5b Burr Oak Zone 4b Burt Zone 5a Bussey Zone 5b Butler County Zone 5a	J Jackson County Zone 5a, 5b Jackson Junction Zone 4b, 5a Jacksonville Zone 5a Jamaica Zone 5a Janesville Zone 5a Jasper County Zone 5a, 5b Jefferson Zone 5a Jefferson County Zone 5b Jesup Zone 5a Jewell Junction Zone 5a Johnson County Zone 5a, 5b Johnston Zone 5a, 5b Joice Zone 5a Jolley Zone 5a Jones County Zone 5a	R Radcliffe Zone 5a Rake Zone 4b Ralston Zone 5a Randalia Zone 4b Randall Zone 5a Randolph Zone 5b Rathbun Zone 5b Raymond Zone 5a Readlyn Zone 5a Reasnor Zone 5a Red Oak Zone 5a Redding Zone 5b Redfield Zone 5a Reinbeck Zone 5a Rembrandt Zone 5a Remsen Zone 5a Renwick Zone 5a Rhodes Zone 5a Riceville Zone 4b Richland Zone 5b Rickardsville Zone 5a Ricketts Zone 5a Ridgeway Zone 4b Rinard Zone 5a Ringgold County Zone 5a, 5b Ringsted Zone 5a Rippey Zone 5a River Sioux Zone 5a Riverdale Zone 5b Riverside Zone 5b Riverton Zone 5b Robins Zone 5a Rochester Zone 5b Rock Falls Zone 5a Rock Rapids Zone 4b Rock Valley Zone 4b, 5a Rockford Zone 5a Rockwell Zone 5a Rockwell City Zone 5a Rodman Zone 5a Rodney Zone 5a Roland Zone 5a Rolfe Zone 5a Rome Zone 5b Rose Hill Zone 5b Roseville Zone 5a Rossie Zone 5a Rowan Zone 5a Rowley Zone 5a Royal Zone 5a Rudd Zone 5a Runnells Zone 5a Russell Zone 5a Ruthven Zone 5a Rutland Zone 5a Ryan Zone 5a
C Calamus Zone 5b Calhoun County Zone 5a California Junction Zone 5a Callender Zone 5a Calmar Zone 4b Calumet Zone 5a Camanche Zone 5b Cambridge Zone 5a Cantril Zone 5b Carbon Zone 5a Carlisle Zone 5a, 5b Carpenter Zone 4b Carroll Zone 5a Carroll County Zone 5a Carson Zone 5a Carter Lake Zone 5b Cascade Zone 5a Casey Zone 5a Cass County Zone 5a Castalia Zone 4b Castana Zone 5a Cedar County Zone 5a, 5b Cedar Falls Zone 5a Cedar Rapids Zone 5a Center Junction Zone 5a Center Point Zone 5a Centerville Zone 5b Central City Zone 5a Centralia Zone 5a Cerro Gordo County Zone 5a Chapin Zone 5a Chariton Zone 5a Charles City Zone 5a Charlotte Zone 5a Charter Oak Zone 5a Chatsworth Zone 5a Chelsea Zone 5a Cherokee Zone 5a Cherokee County Zone 4b, 5a Chester Zone 4b Chickasaw County Zone 4b, 5a Chillicothe Zone 5b Churdan Zone 5a Cincinnati Zone 5b Clare Zone 5a Clarence Zone 5a Clarinda Zone 5b Clarion Zone 5a Clarksville Zone 5a Clay County Zone 5a Clayton Zone 5a Clayton County Zone 4b, 5a Clear Lake Zone 5a Clearfield Zone 5a Cleghorn Zone 5a Clemons Zone 5a Clermont Zone 5a Climbing Hill Zone 5a Clinton Zone 5b Clinton County Zone 5a, 5b Clio Zone 5b Clive Zone 5a, 5b Clutier Zone 5a Coalville Zone 5a Coburg Zone 5b Coggon Zone 5a Coin Zone 5b Colesburg Zone 5a Colfax Zone 5a College Springs Zone 5b Collins Zone 5a Colo Zone 5a Columbus City Zone 5b Columbus Junction Zone 5b Colwell Zone 5a Conesville Zone 5b Conrad Zone 5a Conroy Zone 5a Conway Zone  Coon Rapids Zone 5a Coppock Zone 5b Coralville Zone 5b Corley Zone 5a Corning Zone 5a Correctionville Zone 5a Corwith Zone 5a Corydon Zone 5b Cotter Zone 5b Coulter Zone 5a Council Bluffs Zone 5b Craig Zone 4b Crawford County Zone 5a Crawfordsville Zone 5b Crescent Zone 5b Cresco Zone 4b Creston Zone 5a Cromwell Zone 5a Crystal Lake Zone 5a Cumberland Zone 5a Cumming Zone 5a, 5b Curlew Zone 5a Cushing Zone 5a Cylinder Zone 5a	K Kalona Zone 5b Kamrar Zone 5a Kanawha Zone 5a Kellerton Zone 5b Kelley Zone 5a Kellogg Zone 5a Kensett Zone 5a Kent Zone 5a Keokuk Zone 5b, 6a Keokuk County Zone 5a, 5b Keomah Village Zone 5b Keosauqua Zone 5b Keota Zone 5b Keswick Zone 5a Keystone Zone 5a Kimballton Zone 5a Kingsley Zone 5a Kinross Zone 5b Kirkman Zone 5a Kirkville Zone 5b Kiron Zone 5a Klemme Zone 5a Knierim Zone 5a Knoxville Zone 5b Kossuth County Zone 4b, 5a	S Sabula Zone 5a Sac City Zone 5a Sac County Zone 5a Sageville Zone 5a Salem Zone 5b Salix Zone 5a Sanborn Zone 4b Sandyville Zone 5a Saylorville Zone 5a, 5b Scarville Zone 5a Schaller Zone 5a Schleswig Zone 5a Scott County Zone 5a, 5b Scranton Zone 5a Searsboro Zone 5a Sergeant Bluff Zone 5a Sexton Zone 5a Seymour Zone 5b Shambaugh Zone 5b Shannon City Zone 5b Sharpsburg Zone 5a Sheffield Zone 5a Shelby Zone 5a Shelby County Zone 5a Sheldahl Zone 5a Sheldon Zone 4b Shell Rock Zone 5a Shellsburg Zone 5a Shenandoah Zone 5b Sherrill Zone 5a Shueyville Zone 5a Sibley Zone 4b Sidney Zone 5b Sigourney Zone 5b Silver City Zone 5b Sioux Center Zone 4b, 5a Sioux City Zone 5a Sioux County Zone 4b, 5a Sioux Rapids Zone 5a Slater Zone 5a Smithland Zone 5a Soldier Zone 5a Solon Zone 5a Somers Zone 5a South Amana Zone 5a South English Zone 5b Spencer Zone 5a Spillville Zone 4b Spirit Lake Zone 5a Spragueville Zone 5a Spring Hill Zone 5a Springbrook Zone 5a Springville Zone 5a St. Ansgar Zone 5a St. Anthony Zone 5a St. Benedict Zone 5a St. Charles Zone 5a St. Donatus Zone 5a St. Joseph Zone 5a St. Lucas Zone 4b St. Marys Zone 5a St. Olaf Zone 5a St. Paul Zone 5b Stacyville Zone 4b Stanhope Zone 5a Stanley Zone 5a Stanton Zone 5a Stanwood Zone 5a State Center Zone 5a Steamboat Rock Zone 5a Stockport Zone 5b Stockton Zone 5b Stone City Zone 5a Storm Lake Zone 5a Story City Zone 5a Story County Zone 5a Stout Zone 5a Stratford Zone 5a Strawberry Point Zone 4b Struble Zone 5a Stuart Zone 5a Sully Zone 5a Sumner Zone 5a Sun Valley Lake Zone 5b Superior Zone 5a Sutherland Zone 5a Swaledale Zone 5a Swan Zone 5b Swea City Zone 5a Swisher Zone 5a
D Dakota City Zone 5a Dallas Center Zone 5a Dallas County Zone 5a, 5b Dana Zone 5a Danbury Zone 5a Danville Zone 5b Davenport Zone 5b Davis City Zone 5b Davis County Zone 5b Dawson Zone 5a Dayton Zone 5a De Soto Zone 5a De Witt Zone 5a, 5b Decatur City Zone 5b Decatur County Zone 5a, 5b Decorah Zone 4b Dedham Zone 5a Deep River Zone 5a Defiance Zone 5a Delaware Zone 5a Delaware County Zone 4b, 5a Delhi Zone 5a Delmar Zone 5a Deloit Zone 5a Delphos Zone 5b Delta Zone 5b Denison Zone 5a Denmark Zone 5b Denver Zone 5a Derby Zone 5b Des Moines Zone 5a, 5b Des Moines County Zone 5b Dexter Zone 5a Diagonal Zone 5b Diamondhead Lake Zone 5a Dickens Zone 5a Dickinson County Zone 4b, 5a Dike Zone 5a Dixon Zone 5b Dolliver Zone 5a Donahue Zone 5b Donnellson Zone 5b Doon Zone 4b Douds Zone 5b Dougherty Zone 5a Dow City Zone 5a Dows Zone 5a Drakesville Zone 5b Dubuque Zone 5a Dubuque County Zone 4b, 5a, 5b Dumont Zone 5a Duncan Zone 5a Duncombe Zone 5a Dundee Zone 4b Dunkerton Zone 5a Dunlap Zone 5a Durango Zone 5a Durant Zone 5b Dyersville Zone 5a Dysart Zone 5a	L La Motte Zone 5a La Porte City Zone 5a Lacona Zone 5b Ladora Zone 5a Lake City Zone 5a Lake Mills Zone 5a Lake Panorama Zone 5a Lake Park Zone 5a Lake View Zone 5a Lakeside Zone 5a Lakota Zone 5a Lambs Grove Zone 5b Lamoni Zone 5b Lamont Zone 5a Lanesboro Zone 5a Lansing Zone 5a Larchwood Zone 4b Larrabee Zone 5a Latimer Zone 5a Laurel Zone 5a Laurens Zone 5a Lawler Zone 5a Lawton Zone 5a Le Claire Zone 5b Le Grand Zone 5a Le Mars Zone 5a Leando Zone 5b Ledyard Zone 5a Lee County Zone 5b, 6a Lehigh Zone 5a Leighton Zone 5b Leland Zone 5a Lenox Zone 5a Leon Zone 5b Lester Zone 4b Letts Zone 5b Lewis Zone 5a Libertyville Zone 5b Lidderdale Zone 5a Lime Springs Zone 4b Lincoln Zone 5a Linden Zone 5a Lineville Zone 5b Linn County Zone 5a Linn Grove Zone 5a Lisbon Zone 5a Liscomb Zone 5a Little Cedar Zone 5a Little Rock Zone 4b Little Sioux Zone 5a Livermore Zone 5a Lockridge Zone 5b Logan Zone 5a Lohrville Zone 5a Lone Rock Zone 5a Lone Tree Zone 5b Long Grove Zone 5b Lorimor Zone 5a Lost Nation Zone 5a Louisa County Zone 5b Loveland Zone 5a Lovilia Zone 5b Low Moor Zone 5b Lowden Zone 5a Lu Verne Zone 5a Luana Zone 4b Lucas Zone 5b Lucas County Zone 5a, 5b Luther Zone 5a Luxemburg Zone 5a Luzerne Zone 5a Lynnville Zone 5a Lyon County Zone 4b Lytton Zone 5a	T Tabor Zone 5b Tama Zone 5a Tama County Zone 5a Taylor County Zone 5a, 5b Templeton Zone 5a Tennant Zone 5a Terril Zone 5a Thayer Zone 5a Thompson Zone 5a Thor Zone 5a Thornburg Zone 5a Thornton Zone 5a Thurman Zone 5b Tiffin Zone 5b Tingley Zone 5b Tipton Zone 5a Titonka Zone 5a Toeterville Zone 4b Toledo Zone 5a Toronto Zone 5a Traer Zone 5a Treynor Zone 5a Tripoli Zone 5a Truesdale Zone 5a Truro Zone 5a Turin Zone 5a Twin Lakes Zone 5a
E Eagle Grove Zone 5a Earlham Zone 5a Earling Zone 5a Earlville Zone 5a Early Zone 5a East Amana Zone 5a East Peru Zone 5a Eddyville Zone 5b Edgewood Zone 4b Elberon Zone 5a Eldon Zone 5b Eldora Zone 5a Eldridge Zone 5b Elgin Zone 5a Elk Horn Zone 5a Elk Run Heights Zone 5a Elkader Zone 4b Elkhart Zone 5a Elkport Zone 5a Elliott Zone 5a Ellston Zone 5b Ellsworth Zone 5a Elma Zone 4b Ely Zone 5a Emerson Zone 5a Emmet County Zone 5a Emmetsburg Zone 5a Epworth Zone 5a Essex Zone 5b Estherville Zone 5a Evansdale Zone 5a Everly Zone 5a Exira Zone 5a Exline Zone 5b	M Macedonia Zone 5a Macksburg Zone 5a Madison County Zone 5a, 5b Madrid Zone 5a Magnolia Zone 5a Maharishi Vedic City Zone 5b Mahaska County Zone 5a, 5b Malcom Zone 5a Mallard Zone 5a Maloy Zone 5b Malvern Zone 5b Manchester Zone 5a Manilla Zone 5a Manly Zone 5a Manning Zone 5a Manson Zone 5a Mapleton Zone 5a Maquoketa Zone 5a Marathon Zone 5a Marble Rock Zone 5a Marcus Zone 4b, 5a Marengo Zone 5a Marion Zone 5a Marion County Zone 5a, 5b Marne Zone 5a Marquette Zone 5a Marshall County Zone 5a Marshalltown Zone 5a Martelle Zone 5a Martensdale Zone 5a Martinsburg Zone 5b Marysville Zone 5b Mason City Zone 5a Masonville Zone 5a Massena Zone 5a Matlock Zone 4b Maurice Zone 5a Maxwell Zone 5a Maynard Zone 4b Maysville Zone 5b McCallsburg Zone 5a McCausland Zone 5b McClelland Zone 5b McGregor Zone 5a McIntire Zone 4b Mechanicsville Zone 5a Mediapolis Zone 5b Melbourne Zone 5a Melcher-Dallas Zone 5b Melrose Zone 5b Melvin Zone 4b Menlo Zone 5a Meriden Zone 5a Merrill Zone 5a Meservey Zone 5a Meyer Zone 4b Middle Amana Zone 5a Middletown Zone 5b Miles Zone 5a Milford Zone 5a Miller Zone 5a Millersburg Zone 5a Millerton Zone 5b Mills County Zone 5a, 5b Millville Zone 5a Milo Zone 5a Milton Zone 5b Minburn Zone 5a Minden Zone 5a Mineola Zone 5b Mingo Zone 5a Missouri Valley Zone 5a Mitchell Zone 5a Mitchell County Zone 4b, 5a Mitchellville Zone 5a Modale Zone 5a Mona Zone 4b Mondamin Zone  Monmouth Zone 5a Monona Zone 5a Monona County Zone 5a, 5b Monroe Zone 5a Monroe County Zone 5b Montezuma Zone 5a Montgomery County Zone 5a, 5b Monticello Zone 5a Montour Zone 5a Montrose Zone 5b Moorhead Zone 5a Moorland Zone 5a Moravia Zone 5b Morley Zone 5a Morning Sun Zone 5b Morrison Zone 5a Moulton Zone 5b Mount Auburn Zone 5a Mount Ayr Zone 5b Mount Pleasant Zone 5b Mount Sterling Zone 5b Mount Union Zone 5b Mount Vernon Zone 5a Moville Zone 5a Murray Zone 5b Muscatine Zone 5b Muscatine County Zone 5b Mystic Zone 5b	U Udell Zone 5b Underwood Zone 5b Union Zone 5a Union County Zone 5a, 5b Unionville Zone 5b University Heights Zone 5b University Park Zone 5b Urbana Zone 5a Urbandale Zone 5a, 5b Ute Zone 5a
F Fairbank Zone 5a Fairfax Zone 5a Fairfield Zone 5b Farley Zone 5a Farmersburg Zone 4b Farmington Zone 5b Farnhamville Zone 5a Farragut Zone 5b Fayette Zone 4b Fayette County Zone 4b, 5a Fenton Zone 5a Ferguson Zone 5a Fertile Zone 5a Floris Zone 5b Floyd Zone 5a Floyd County Zone 4b, 5a Fonda Zone 5a Fontanelle Zone 5a Forest City Zone 5a Fort Atkinson Zone 4b Fort Dodge Zone 5a Fort Madison Zone 5b Fostoria Zone 5a Franklin Zone 5b Franklin County Zone 5a Fraser Zone 5a Fredericksburg Zone 5a Frederika Zone 5a Fredonia Zone 5b Fremont Zone 5b Fremont County Zone 5a, 5b Fruitland Zone 5b Frytown Zone 5b	N Nashua Zone 5a Nemaha Zone 5a Neola Zone 5a Nevada Zone 5a New Albin Zone 5a New Hampton Zone 5a New Hartford Zone 5a New Haven Zone 5a New Liberty Zone 5b New London Zone 5b New Market Zone 5b New Providence Zone 5a New Sharon Zone 5a New Vienna Zone 5a New Virginia Zone 5b Newell Zone 5a Newhall Zone 5a Newton Zone 5a, 5b Nichols Zone 5b Nodaway Zone  Nora Springs Zone 5a North Buena Vista Zone 5a North English Zone 5a North Liberty Zone 5b North Washington Zone 5a Northboro Zone 5b Northwood Zone 4b Norwalk Zone 5b Norway Zone 5a Numa Zone 5b	V Vail Zone 5a Valeria Zone 5a Van Buren County Zone 5b Van Horne Zone 5a Van Meter Zone 5a Van Wert Zone 5b Varina Zone 5a Ventura Zone 5a Victor Zone 5a Villisca Zone 5b Vincent Zone 5a Vining Zone 5a Vinton Zone 5a Volga Zone 4b
G Galt Zone 5a Galva Zone 5a Garden City Zone 5a Garden Grove Zone 5a Garnavillo Zone 5a Garner Zone 5a Garrison Zone 5a Garwin Zone 5a Geneva Zone 5a George Zone 4b Gibson Zone 5a Gilbert Zone 5a Gilbertville Zone 5a Gillett Grove Zone 5a Gilman Zone 5a Gilmore City Zone 5a Gladbrook Zone 5a Glenwood Zone 5a, 5b Glidden Zone 5a Goldfield Zone 5a Goodell Zone 5a Goose Lake Zone 5a Gowrie Zone 5a Graettinger Zone 5a Graf Zone 5a Grafton Zone 5a Grand Junction Zone 5a Grand Mound Zone 5a Grand River Zone 5b Grandview Zone 5b Granger Zone 5a Grant Zone 5a Granville Zone 4b Gravity Zone 5b Gray Zone 5a Greeley Zone 4b Green Mountain Zone 5a Greene Zone 5a Greene County Zone 5a Greenfield Zone 5a Greenville Zone 5a Grimes Zone 5a Grinnell Zone 5a Griswold Zone 5a Grundy Center Zone 5a Grundy County Zone 5a Gruver Zone 5a Guernsey Zone 5a Guthrie Center Zone 5a Guthrie County Zone 5a Guttenberg Zone 5a	O Oakland Zone 5a Oakland Acres Zone 5a Oakville Zone 5b Ocheyedan Zone 4b Odebolt Zone 5a Oelwein Zone 4b, 5a Ogden Zone 5a Okoboji Zone 5a Olds Zone 5b Olin Zone 5a Ollie Zone 5b Onawa Zone 5a Onslow Zone 5a Orange City Zone 5a Orchard Zone 5a Orient Zone 5a Orleans Zone 5a Osage Zone 5a Osceola Zone 5b Osceola County Zone 4b, 5a Oskaloosa Zone 5b Ossian Zone 4b Osterdock Zone 5a Otho Zone 5a Oto Zone 5a Otranto Zone 4b Ottosen Zone 5a Ottumwa Zone 5b Owasa Zone 5a Oxford Zone 5a Oxford Junction Zone 5a Oyens Zone 5a	W Wadena Zone 4b Wahpeton Zone 5a Walcott Zone 5b Walford Zone 5a Walker Zone 5a Wall Lake Zone 5a Wallingford Zone 5a Walnut Zone 5a Wapello Zone 5b Wapello County Zone 5b Warren County Zone 5a, 5b Washburn Zone 5a Washington Zone 5b Washington County Zone 5b Washta Zone 5a Waterloo Zone 5a Waterville Zone 5a Watkins Zone 5a Waucoma Zone 4b Waukee Zone 5a Waukon Zone 5a Waverly Zone 5a Wayland Zone 5b Wayne County Zone 5a, 5b Webb Zone 5a Webster Zone 5b Webster City Zone 5a Webster County Zone 5a Weldon Zone 5b Wellman Zone 5b Wellsburg Zone 5a Welton Zone 5a Wesley Zone 5a West Amana Zone 5a West Bend Zone 5a West Branch Zone 5b West Burlington Zone 5b West Chester Zone 5b West Des Moines Zone 5a, 5b West Liberty Zone 5b West Okoboji Zone 5a West Point Zone 5b West Union Zone 4b Westfield Zone 5a Westgate Zone 5a Weston Zone 5b Westphalia Zone 5a Westside Zone 5a Westwood Zone 5b What Cheer Zone 5b Wheatland Zone 5a Whiting Zone 5a Whittemore Zone 5a Whitten Zone 5a Willey Zone 5a Williams Zone 5a Williamsburg Zone 5a Williamson Zone 5a Wilton Zone 5b Windsor Heights Zone 5b Winfield Zone 5b Winnebago County Zone 4b, 5a Winneshiek County Zone 4b, 5a Winterset Zone 5a Winthrop Zone 5a Wiota Zone 5a Woden Zone 5a Woodbine Zone 5a Woodburn Zone 5b Woodbury County Zone 5a Woodward Zone 5a Woolstock Zone 5a Worth County Zone 4b, 5a Worthington Zone 5a Wright County Zone 5a Wyoming Zone 5a
H Halbur Zone 5a Hamburg Zone 5b Hamilton Zone 5b Hamilton County Zone 5a Hampton Zone 5a Hancock Zone 5a Hancock County Zone 5a Hanlontown Zone 5a Hansell Zone 5a Harcourt Zone 5a Hardin County Zone 5a Hardy Zone 5a Harlan Zone 5a Harper Zone 5b Harpers Ferry Zone 5a Harris Zone 4b Harrison County Zone 5a, 5b Hartford Zone 5a, 5b Hartley Zone 4b, 5a Hartwick Zone 5a Harvey Zone 5b Hastings Zone 5a Havelock Zone 5a Haverhill Zone 5a Hawarden Zone 5a Hawkeye Zone 4b Hayesville Zone 5b Hayfield Zone 5a Hazleton Zone 5a Hedrick Zone 5b Henderson Zone 5a Henry County Zone 5b Hepburn Zone 5b Hiawatha Zone 5a High Amana Zone 5a Hills Zone 5b Hillsboro Zone 5b Hinton Zone 5a Holiday Lake Zone 5a Holland Zone 5a Holstein Zone 5a Holy Cross Zone 5a Homestead Zone 5a Hopkinton Zone 5a Hornick Zone 5a Hospers Zone 4b Houghton Zone 5b Howard County Zone 4b, 5a Hubbard Zone 5a Hudson Zone 5a Hull Zone 4b Humboldt Zone 5a Humboldt County Zone 5a Humeston Zone 5b Hutchins Zone 5a Huxley Zone 5a	P Pacific Junction Zone 5a Packwood Zone 5b Page County Zone 5a, 5b Palmer Zone 5a Palo Zone 5a Palo Alto County Zone 5a Panama Zone 5a Panora Zone 5a Panorama Park Zone 5b Park View Zone 5b Parkersburg Zone 5a Parnell Zone 5a Paton Zone 5a Patterson Zone 5a Paullina Zone 4b Pella Zone 5b Peosta Zone 5a Percival Zone 5b Perry Zone 5a Persia Zone 5a Peterson Zone 5a Pierson Zone 5a Pilot Mound Zone 5a Pioneer Zone 5a Pisgah Zone 5a Plainfield Zone 5a Plano Zone 5b Pleasant Hill Zone 5a, 5b Pleasant Plain Zone 5b Pleasanton Zone 5b Pleasantville Zone 5a, 5b Plover Zone 5a Plymouth Zone 5a Plymouth County Zone 4b, 5a Pocahontas Zone 5a Pocahontas County Zone 5a Polk City Zone 5a Polk County Zone 5a, 5b Pomeroy Zone 5a Popejoy Zone 5a Portland Zone 5a Portsmouth Zone 5a Postville Zone 4b Pottawattamie County Zone 5a, 5b Poweshiek County Zone 5a, 5b Prairie City Zone 5a Prairieburg Zone 5a Prescott Zone 5a Preston Zone 5a Primghar Zone 4b Princeton Zone 5b Promise City Zone 5b Protivin Zone 4b Pulaski Zone 5b	Y Yale Zone 5a Yetter Zone 5a Yorktown Zone 5b Z  Zearing Zone 5a Zwingle Zone 5a