6 planting zones in Illinois on Map

Illinois has 6 USDA planting zones, ranging from zone 5a to zone 7b. Average annual minimum temperatures range from -20°F to 10°F, according to the 2023 USDA Plant Hardiness Zone Map. Northern Illinois is in zones 5a and 5b, central Illinois in 6a and 6b, and southern Illinois in 7a and 7b. Chicago is in zone 6a.

Find your Illinois growing zone — also called the gardening zone, plant zone, garden zone, hardiness zone, or climate zone — using our ZIP code tool or the Illinois city map below. Browse every Illinois city, town, and county with its USDA zone in the Illinois cities, towns and counties directory.

Search Illinois Planting Zones by ZipCode

Planting Zones Illinois Map

Select your Illinois city in the selection box below. Use the top-right corner button in the map view to toggle map layers.

What are the 6 planting zones in Illinois?

1. Zone 5a

Zone 5a, shown in dark purple on our map, covers a small area in the northwestern corner of Illinois. Average annual minimum temperatures range from -20°F to -15°F (-28.9°C to -26.1°C), the coldest in the state. Cities in zone 5a include Galena, Elizabeth, and Stockton.

2. Zone 5b

Zone 5b, shown in light purple on our map, covers most of northern Illinois. Average annual minimum temperatures range from -15°F to -10°F (-26.1°C to -23.3°C). Cities in zone 5b include Rockford, DeKalb, and Dixon, plus the far northern Chicago suburbs.

3. Zone 6a

Zone 6a, shown in dark blue on our map, covers central and northeastern Illinois, including the Chicago metropolitan area. Average annual minimum temperatures range from -10°F to -5°F (-23.3°C to -20.6°C). Cities in zone 6a include Chicago, Peoria, Bloomington, Springfield, Decatur, and Champaign-Urbana.

4. Zone 6b

Zone 6b, shown in dark green on our map, stretches across central Illinois and into the southern part of the state. Average annual minimum temperatures range from -5°F to 0°F (-20.6°C to -17.8°C). Cities in zone 6b include Effingham, Bluford, and Golden Gate.

5. Zone 7a

Zone 7a, shown in light green on our map, covers most of southern Illinois. Average annual minimum temperatures range from 0°F to 5°F (-17.8°C to -15°C). Cities in zone 7a include Carbondale, Belleville, Alton, and Orient.

6. Zone 7b

Zone 7b, shown in yellow on our map, covers the southernmost tip of Illinois and is the warmest planting zone in the state. Average annual minimum temperatures range from 5°F to 10°F (-15°C to -12.2°C), the mildest winters in Illinois. This zone includes areas around Shawnee National Forest.

Illinois Planting Zones by Region

What planting zone is northern Illinois?

Northern Illinois falls in USDA zones 5a and 5b, with average annual minimum temperatures from -20°F to -10°F. Cities include Galena, Freeport, Rockford, and the far northern Chicago suburbs.

What planting zone is central Illinois?

Central Illinois falls in USDA zones 6a and 6b, with average annual minimum temperatures from -10°F to 0°F. Cities include Peoria, Bloomington, Champaign-Urbana, Springfield, and Decatur.

What planting zone is southern Illinois?

Southern Illinois falls in USDA zones 7a and 7b, with average annual minimum temperatures from 0°F to 10°F. Cities include Carbondale, Belleville, Alton, Cairo, and the area around Shawnee National Forest.

What planting zone is Chicago?

Chicago is in USDA zone 6a, with average annual minimum temperatures from -10°F to -5°F. The far northern suburbs (McHenry, Fox Lake, Lake Villa) fall in zone 5b.

Planting Zones in Illinois with Cities

Find the USDA hardiness zone for every Illinois city, town, and county in the table below. Data Source: 2023 USDA Plant Hardiness Zone Map.

Planting Zones in Illinois	Temp Range (°F)	Cities
5b	-15 to -10	Abingdon, Albany, Aledo, Alexis, Algonquin, Alpha, Altona, Amboy, Ancona, Andalusia, Andover, Annawan, Antioch, Arlington, Aroma Park, Ashkum, Ashton, Atkinson, Aurora, Avon, Barrington, Barstow, Bartlett, Batavia, Beaverville, Belvidere, Benson, Berwick, Big Rock, Biggsville, Bishop Hill, Blackstone, Bloomingdale, Bonfield, Bourbonnais, Braceville, Bradford, Bradley, Braidwood, Brimfield, Bristol, Buckingham, Buda, Buffalo Prairie, Bureau, Burlington, Byron, Cabery, Caledonia, Cambridge, Cameron, Camp Grove, Campus, Capron, Carbon Cliff, Carlock, Carol Stream, Carpentersville, Cary, Castleton, Cedar Point, Chana, Channahon, Chebanse, Chenoa, Cherry, Cherry Valley, Clare, Clifton, Coal City, Coal Valley, Colona, Compton, Congerville, Cordova, Cornell, Cortland, Crescent City, Creston, Crystal Lake, Cullom, Dahinda, Dalzell, Dana, Danforth, Danvers, Davis Junction, Deer Creek, Deer Grove, Dekalb, Depue, Dixon, Donovan, Downers Grove, Dundee, Dunlap, Durand, Dwight, Earlville, East Galesburg, East Moline, Edelstein, Edwards, El Paso, Elburn, Elgin, Elmwood, Emington, Eola, Erie, Esmond, Essex, Eureka, Fairview, Farmington, Fenton, Fiatt, Flanagan, Forreston, Fox Lake, Fox River Grove, Fox Valley, Franklin Grove, Fulton, Galesburg, Galt, Galva, Garden Prairie, Gardner, Geneseo, Geneva, Genoa, Gerlaw, German Valley, Gilberts, Gilman, Gilson, Glen Ellyn, Glendale Heights, Good Hope, Goodfield, Grand Ridge, Grant Park, Granville, Graymont, Grayslake, Gridley, Hampshire, Hampton, Hanover Park, Harmon, Harvard, Hebron, Henderson, Hennepin, Henry, Herscher, Hillsdale, Hinckley, Hoffman Estates, Holcomb, Hooppole, Hopkins Park, Huntley, Illinois City, Ingleside, Iroquois, Island Lake, Joliet, Joy, Kaneville, Kankakee, Kasbeer, Keithsburg, Kempton, Kewanee, Kingston, Kinsman, Kirkland, Kirkwood, Knoxville, La Fayette, La Moille, La Rose, La Salle, Lacon, Ladd, Lafox, Lake In The Hills, Lake Villa, Lake Zurich, Laura, Leaf River, Lee, Lee Center, Leland, Leonore, Lindenwood, Lisle, Little York, London Mills, Long Point, Lostant, Loves Park, Lowpoint, Lyndon, Lynn Center, Machesney Park, Magnolia, Malden, Malta, Manlius, Manteno, Maple Park, Maquon, Marengo, Mark, Marseilles, Martinton, Matherville, Mazon, Mc Nabb, Mchenry, Media, Medinah, Mendota, Milan, Millington, Mineral, Minonk, Minooka, Moline, Momence, Monmouth, Monroe Center, Montgomery, Mooseheart, Morris, Morrison, Mount Morris, Mundelein, Nachusa, Naperville, Neponset, New Bedford, New Boston, New Windsor, Newark, Norris, North Aurora, North Henderson, Oglesby, Ohio, Onarga, Oneida, Opheim, Oquawka, Oregon, Orion, Osco, Oswego, Ottawa, Palatine, Papineau, Paw Paw, Pecatonica, Pembroke Township, Peoria, Peru, Plainfield, Plano, Polo, Poplar Grove, Port Byron, Preemption, Princeton, Princeville, Prophetstown, Putnam, Ransom, Rapids City, Reddick, Reynolds, Richmond, Ridott, Ringwood, Rio, Roanoke, Rochelle, Rock Falls, Rock Island, Rockford, Rockton, Roscoe, Roselle, Roseville, Round Lake, Russell, Rutland, Saint Anne, Saint Augustine, Saint Charles, Sandwich, Saunemin, Schaumburg, Sciota, Seaton, Seatonville, Secor, Seneca, Serena, Seward, Shabbona, Sheffield, Sheldon, Sheridan, Sherrard, Shirland, Shorewood, Silvis, Smithshire, Somonauk, South Beloit, South Elgin, South Wilmington, Sparland, Speer, Spring Grove, Spring Valley, Sterling, Steward, Stillman Valley, Stockland, Streamwood, Streator, Sublette, Sugar Grove, Sycamore, Tampico, Taylor Ridge, Thomson, Tiskilwa, Toluca, Tonica, Toulon, Trivoli, Troy Grove, Union, Union Hill, Utica, Van Orin, Varna, Verona, Victoria, Viola, Wadsworth, Walnut, Warrenville, Wasco, Washburn, Wataga, Waterman, Watseka, Wauconda, Wayne, Wedron, Wenona, West Brooklyn, West Chicago, Wheaton, Williamsfield, Wilmington, Winfield, Winnebago, Wonder Lake, Woodhull, Woodland, Woodstock, Woosung, Wyanet, Wyoming, Yates City, Yorkville
6a	-10 to -5	Adair, Addison, Alexander, Allerton, Alsey, Alsip, Alvin, Anchor, Arcola, Arenzville, Argenta, Arlington Heights, Armington, Armstrong, Arrowsmith, Arthur, Ashland, Ashmore, Assumption, Astoria, Athens, Atlanta, Atwood, Auburn, Augusta, Bardolph, Barry, Basco, Bath, Baylis, Beardstown, Beason, Bedford Park, Beecher, Bellflower, Bellwood, Bement, Bensenville, Berkeley, Berwyn, Bethany, Bismarck, Blandinsville, Bloomington, Blue Island, Blue Mound, Bluff Springs, Bluffs, Bolingbrook, Boody, Bowen, Bridgeview, Broadlands, Broadview, Brocton, Brookfield, Browning, Bryant, Buckley, Buffalo, Buffalo Grove, Bulpitt, Burbank, Bushnell, Calumet City, Camargo, Camden, Camp Point, Canton, Cantrall, Carman, Carrollton, Carthage, Catlin, Cerro Gordo, Chambersburg, Champaign, Chandlerville, Chapin, Charleston, Chatham, Chatsworth, Chestnut, Chicago, Chicago Heights, Chicago Ridge, Chillicothe, Chrisman, Cicero, Cisco, Cissna Park, Clarendon Hills, Clayton, Claytonville, Clinton, Coatsburg, Colchester, Colfax, Collison, Colusa, Concord, Cooksville, Cornland, Country Club Hills, Crest Hill, Crete, Creve Coeur, Cropsey, Cuba, Dallas City, Dalton City, Danville, Darien, Dawson, De Land, Decatur, Deerfield, Delavan, Dennison, Des Plaines, Dewey, Dewitt, Divernon, Dolton, Downers Grove, Downs, Dunfermline, East Lynn, East Peoria, Easton, Edinburg, Elk Grove Village, Elkhart, Elliott, Ellisville, Ellsworth, Elmhurst, Elmwood Park, Elvaston, Elwin, Elwood, Emden, Evanston, Evergreen Park, Fairbury, Fairmount, Farmer City, Farmersville, Ferris, Findlay, Fisher, Fithian, Flossmoor, Foosland, Forest City, Forest Park, Forrest, Forsyth, Fowler, Frankfort, Franklin, Franklin Park, Frederick, Gays, Georgetown, Gibson City, Gifford, Gladstone, Glasford, Glen Ellyn, Glenarm, Glencoe, Glenview, Glenview Nas, Glenwood, Golden, Golf, Goodwine, Great Lakes, Green Valley, Greenfield, Greenview, Griggsville, Groveland, Gurnee, Hamburg, Hamilton, Hammond, Hanna City, Harristown, Hartsburg, Harvel, Harvey, Harwood Heights, Havana, Hazel Crest, Henning, Hettick, Heyworth, Hickory Hills, Highland Park, Highwood, Hillside, Hindsboro, Hines, Hinsdale, Homer, Homer Glen, Hometown, Homewood, Hoopeston, Hopedale, Hudson, Humboldt, Hume, Huntsville, Illiopolis, Indianola, Industry, Ipava, Itasca, Ivesdale, Jacksonville, Joliet, Justice, Kampsville, Kansas, Kenilworth, Kenney, Kilbourne, Kincaid, Kinderhook, Kingston Mines, La Grange, La Grange Park, La Harpe, La Place, La Prairie, Lake Bluff, Lake Forest, Lake Fork, Lansing, Latham, Lawndale, Le Roy, Lemont, Lerna, Lewistown, Lexington, Liberty, Libertyville, Lima, Lincoln, Lincoln’S New Salem, Lincolnshire, Lincolnwood, Literberry, Littleton, Liverpool, Loami, Lockport, Loda, Lomax, Lombard, Longview, Loraine, Lovington, Ludlow, Lyons, Mackinaw, Macomb, Macon, Mahomet, Manchester, Manhattan, Manito, Mansfield, Mapleton, Marietta, Markham, Maroa, Marshall, Mason City, Matteson, Mattoon, Maywood, Mc Lean, Mechanicsburg, Melrose Park, Melvin, Mendon, Meredosia, Merna, Metamora, Metcalf, Middletown, Midlothian, Milford, Milmine, Milton, Minier, Mokena, Monee, Monticello, Morrisonville, Morton, Morton Grove, Mossville, Mount Auburn, Mount Prospect, Mount Pulaski, Mount Sterling, Moweaqua, Mt Zion, Muncie, Murdock, Murrayville, Naperville, Nauvoo, Nebo, New Berlin, New Holland, New Lenox, New Salem, Newman, Niantic, Niles, Niota, Nokomis, Normal, North Chicago, Northbrook, Oak Brook, Oak Forest, Oak Lawn, Oak Park, Oakford, Oakland, Oakwood, Odell, Ogden, Olympia Fields, Oreana, Orland Park, Owaneco, Palatine, Palmer, Paloma, Palos Heights, Palos Hills, Palos Park, Paris, Park Forest, Park Ridge, Patterson, Pawnee, Paxton, Payson, Pearl, Pekin, Penfield, Peoria, Peotone, Perry, Pesotum, Petersburg, Philo, Piper City, Pittsfield, Plainville, Pleasant Plains, Plymouth, Pontiac, Posen, Potomac, Prairie City, Prospect Heights, Quincy, Rankin, Rantoul, Redmon, Richton Park, Ridge Farm, River Forest, River Grove, Riverdale, Riverside, Riverton, Robbins, Roberts, Rochester, Rolling Meadows, Rome, Romeoville, Roodhouse, Rossville, Royal, Rushville, Sadorus, Saint David, Saint Joseph, San Jose, Savoy, Saybrook, Schiller Park, Seymour, Shelbyville, Sherman, Shirley, Sibley, Sidell, Sidney, Skokie, Smithfield, South Holland, South Pekin, Springfield, Stanford, Steger, Stone Park, Stonington, Strawn, Stronghurst, Sullivan, Summit Argo, Sutter, Table Grove, Tallula, Taylorville, Techny, Tennessee, Thawville, Thayer, Thomasboro, Thornton, Tilton, Timewell, Tinley Park, Tolono, Topeka, Tovey, Towanda, Tremont, Tuscola, University Park, Urbana, Ursa, Vermilion, Vermont, Vernon Hills, Versailles, Villa Grove, Villa Park, Virginia, Waggoner, Wapella, Warrensburg, Warsaw, Washington, Waukegan, Waverly, Waynesville, Weldon, Wellington, West Point, Westchester, Western Springs, Westfield, Westmont, Westville, Wheeling, White Hall, White Heath, Williamsville, Willow Springs, Willowbrook, Wilmette, Winchester, Windsor, Winnetka, Winthrop Harbor, Wood Dale, Woodridge, Woodson, Worth, Wrights, Zion
6b	-5 to 0	Addieville, Albers, Albion, Alhambra, Allendale, Alma, Altamont, Annapolis, Ashley, Aviston, Barnhill, Bartelso, Batchtown, Beckemeyer, Beecher City, Belle Rive, Bellmont, Benld, Bethalto, Bingham, Bluford, Bone Gap, Bonnie, Breese, Bridgeport, Brighton, Browns, Brownstown, Brussels, Bunker Hill, Burnt Prairie, Butler, Calhoun, Carlinville, Carlyle, Casey, Centralia, Chesterfield, Chicago, Cisne, Claremont, Clay City, Coffeen, Coulterville, Cowden, Dahlgren, Dale, Dieterich, Dix, Donnellson, Dorsey, Dow, Du Bois, Dundas, Eagarville, Edgewood, Effingham, Eldred, Ellery, Elsah, Enfield, Ewing, Fairfield, Farina, Fieldon, Fillmore, Flat Rock, Flora, Geff, Germantown, Gillespie, Girard, Godfrey, Golden Eagle, Golden Gate, Grafton, Greenup, Greenville, Hamel, Hardin, Herrick, Hidalgo, Highland, Hillsboro, Hillview, Hoffman, Hoyleton, Huey, Hull, Hutsonville, Ina, Ingraham, Irving, Irvington, Iuka, Jerseyville, Jewett, Johnsonville, Kane, Keenes, Keensburg, Kell, Keyesport, Kinmundy, Lakewood, Lawrenceville, Lebanon, Lenzburg, Litchfield, Livingston, Logan, Louisville, Lowder, Macedonia, Marine, Martinsville, Mascoutah, Mason, Mc Leansboro, Medora, Mill Shoals, Mode, Modesto, Montrose, Moro, Mount Carmel, Mount Erie, Mount Olive, Mount Vernon, Mulberry Grove, Nashville, Nason, Neoga, New Baden, New Canton, New Douglas, New Memphis, Newton, Nilwood, Noble, Oakdale, Oblong, Oconee, Odin, Ohlman, Okawville, Olney, Opdyke, Palestine, Palmyra, Pana, Panama, Parkersburg, Patoka, Piasa, Pierron, Pleasant Hill, Pocahontas, Radom, Ramsey, Raymond, Richview, Rinard, Robinson, Rockbridge, Rockport, Rosamond, Sailor Springs, Saint Elmo, Saint Francisville, Saint Libory, Saint Peter, Sainte Marie, Salem, Sandoval, Sawyerville, Scheller, Scott Air Force Base, Scottville, Sesser, Shipman, Shobonier, Shumway, Sigel, Sims, Smithboro, Sorento, Staunton, Stewardson, Stoy, Strasburg, Summerfield, Sumner, Tamaroa, Taylor Springs, Teutopolis, Texico, Thompsonville, Toledo, Tower Hill, Trenton, Trilla, Vandalia, Vernon, Virden, Walnut Hill, Walshville, Waltonville, Watson, Wayne City, West Liberty, West Salem, West Union, West York, Wheeler, Whittington, Willow Hill, Wilsonville, Witt, Woodlawn, Worden, Xenia, Yale
5a	-20 to -15	Apple River, Baileyville, Cedarville, Chadwick, Dakota, Davis, East Dubuque, Eleroy, Elizabeth, Freeport, Galena, Hanover, Kent, Lanark, Lena, Mc Connell, Milledgeville, Mount Carroll, Nora, Orangeville, Pearl City, Rock City, Savanna, Scales Mound, Shannon, Stockton, Warren, Winslow
7a	0 to 5	Alto Pass, Alton, Anna, Ava, Baldwin, Belknap, Belleville, Benton, Brookport, Broughton, Buckner, Buncombe, Cairo, Cambria, Campbell Hill, Carbondale, Carmi, Carrier Mills, Carterville, Caseyville, Cave In Rock, Chester, Christopher, Cobden, Coello, Collinsville, Colp, Columbia, Cottage Hills, Creal Springs, Crossville, Cutler, Cypress, De Soto, Dongola, Dowell, Du Quoin, Dupo, East Alton, East Carondelet, East Saint Louis, Eddyville, Edwardsville, Eldorado, Elizabethtown, Elkville, Ellis Grove, Emma, Energy, Equality, Evansville, Fairview Heights, Frankfort Heights, Freeburg, Freeman Spur, Fults, Galatia, Glen Carbon, Golconda, Goreville, Gorham, Grand Chain, Grand Tower, Granite City, Grantsburg, Grayville, Harrisburg, Hartford, Hecker, Herod, Herrin, Hurst, Jacob, Johnston City, Jonesboro, Joppa, Junction, Karnak, Lovejoy, Madison, Maeystown, Makanda, Marion, Marissa, Maryville, Maunie, Mc Clure, Menard, Metropolis, Millcreek, Miller City, Millstadt, Modoc, Mound City, Mounds, Muddy, Mulkeytown, Murphysboro, New Athens, New Burnside, New Haven, Norris City, O Fallon, Olive Branch, Olmsted, Omaha, Orient, Ozark, Percy, Perks, Pinckneyville, Pittsburg, Pomona, Prairie Du Rocher, Pulaski, Raleigh, Red Bud, Renault, Ridgway, Rockwood, Rosiclare, Roxana, Royalton, Saint Jacob, Shawneetown, Simpson, Smithton, South Roxana, Sparta, Springerton, Steeleville, Stonefort, Tamms, Thebes, Tilden, Troy, Ullin, Unity, Valier, Valmeyer, Venice, Vergennes, Vienna, Villa Ridge, Walsh, Waterloo, West Frankfort, Willisville, Wolf Lake, Wood River, Zeigler

Illinois Planting Zones Over Time

The 2023 USDA Plant Hardiness Zone Map shifted most Illinois areas up by about half a zone, reflecting warmer winter temperatures. Northern Illinois stays in zones 5a and 5b. Central Illinois shifted to 6a and 6b. Southern Illinois moved to 7a, with a small area reaching 7b for the first time.