Government Contractors in Illinois
Certifications
Ownership / Diversity
Business Type
NAICS Code
- 11 - Agriculture & Livestock
- 21 - Mining, Oil & Gas
- 22 - Utilities
- 23 - Construction
- 31 - Food & Apparel
- 32 - Non-Metallic Manufacturing
- 33 - Metallic Manufacturing
- 42 - Wholesale Trade
- 44 - Retail Trade
- 45 - Retail Trade - Misc.
- 48 - Transportation
- 49 - Postal & Warehousing
- 51 - IT Technology
- 52 - Finance and Insurance
- 53 - Real Estate
- 54 - Professional Services
- 55 - Company Management
- 56 - Administrative Service
- 61 - Educational Services
- 62 - Health Care
- 71 - Arts and Entertainment
- 72 - Travel & Food Services
- 81 - Other Services
- 92 - Public Administration
CITY
- Abingdon
- Adair
- Addieville village
- Addison village
- Adeline village
- Albany village
- Albers village
- Albion
- Aledo
- Alexis village
- Algonquin village
- Alhambra village
- Allendale village
- Allenville village
- Allerton village
- Alma village
- Alorton village
- Alpha village
- Alsey village
- Alsip village
- Altamont
- Alto Pass village
- Alton
- Altona village
- Alvan village
- Amboy
- Anchor village
- Andalusia village
- Andover village
- Anna
- Annapolis
- Annawan town
- Antioch village
- Apple Canyon Lake
- Apple River village
- Arcola
- Arenzville village
- Argenta village
- Arlington Heights village
- Arlington village
- Armington village
- Aroma Park village
- Arrowsmith village
- Arthur village
- Ashkum village
- Ashland village
- Ashley
- Ashmore village
- Ashton village
- Assumption
- Astoria town
- Athens
- Atkinson town
- Atlanta
- Atwood village
- Auburn
- Augusta village
- Aurora
- Ava
- Aviston village
- Avon village
- Baldwin village
- Banner village
- Bannockburn village
- Bardolph village
- Barrington Hills village
- Barrington village
- Barry
- Bartelso village
- Bartlett village
- Bartonville village
- Basco village
- Batavia
- Batchtown village
- Bath village
- Bay View Gardens village
- Baylis village
- Beach Park village
- Beardstown
- Beason
- Beaverville village
- Beckemeyer village
- Bedford Park village
- Beecher village
- Beecher village
- Belgium village
- Belknap village
- Belle Prairie town
- Belle Rive village
- Belleville
- Bellevue village
- Bellflower village
- Bellmont village
- Bellwood village
- Belvidere
- Bement village
- Benld
- Bensenville village
- Benson village
- Bentley town
- Benton
- Berkeley village
- Berlin village
- Berwyn
- Bethalto village
- Bethany village
- Big Rock village
- Biggsville village
- Bingham village
- Bishop Hill village
- Bismarck village
- Blandinsville village
- Bloomingdale village
- Bloomington
- Blue Island
- Blue Mound village
- Bluffs village
- Bluford village
- Bolingbrook village
- Bondville village
- Bone Gap village
- Bonfield village
- Bonnie village
- Boody
- Boulder Hill
- Bourbonnais village
- Bowen village
- Braceville village
- Bradford village
- Bradley village
- Braidwood
- Breese
- Bridgeport
- Bridgeview village
- Brighton village
- Brimfield village
- Broadlands village
- Broadview village
- Broadwell village
- Brocton village
- Brookfield village
- Brooklyn village
- Brookport
- Broughton village
- Browning village
- Browns village
- Brownstown village
- Brussels village
- Bryant village
- Buckingham village
- Buckley village
- Buckner village
- Buda village
- Buffalo Grove village
- Buffalo village
- Bull Valley village
- Bulpitt village
- Buncombe village
- Bunker Hill
- Burbank
- Bureau Junction village
- Burlington village
- Burnham village
- Burnt Prairie village
- Burr Ridge village
- Bush village
- Bushnell
- Butler village
- Byron
- Cabery village
- Cahokia village
- Cairo
- Caledonia village
- Calhoun village
- Calumet
- Calumet Park village
- Camargo village
- Cambria village
- Cambridge village
- Camden village
- Camp Point village
- Campbell Hill village
- Campton Hills village
- Campus village
- Canton
- Cantrall village
- Capron village
- Carbon Cliff village
- Carbon Hill village
- Carbondale
- Carlinville
- Carlock village
- Carlyle
- Carmi
- Carol Stream village
- Carpentersville village
- Carrier Mills village
- Carrollton
- Carterville
- Carthage
- Cary village
- Casey
- Caseyville village
- Catlin village
- Cave-In-Rock village
- Cedar Point village
- Cedarville village
- Central village
- Centralia
- Centreville
- Cerro Gordo village
- Chadwick village
- Champaign
- Chandlerville village
- Channahon village
- Channel Lake
- Chapin village
- Charleston
- Chatham village
- Chatsworth town
- Chebanse village
- Chemung
- Chenoa
- Cherry Valley village
- Cherry village
- Chester
- Chesterfield village
- Chestnut
- Chicago
- Chicago Heights
- Chicago Ridge village
- Chillicothe
- Chrisman
- Christopher
- Cicero town
- Cisco village
- Cisne village
- Cissna Park village
- Claremont village
- Clarendon Hills village
- Clay village
- Clayton village
- Clear Lake village
- Cleveland village
- Clifton village
- Clinton
- Coal Valley village
- Coal village
- Coalton village
- Coatsburg village
- Cobden village
- Coffeen
- Colchester
- Coleta village
- Colfax village
- Collinsville
- Colona
- Colp village
- Columbia
- Columbus village
- Como
- Compton village
- Concord village
- Congerville village
- Cooksville village
- Cordova village
- Cornell village
- Cornland
- Cortland town
- Coulterville village
- Country Club Hills
- Countryside
- Cowden village
- Coyne Center
- Crab Orchard
- Crainville village
- Creal Springs
- Crescent village
- Crest Hill
- Creston village
- Crestwood village
- Crete village
- Creve Coeur village
- Crossville village
- Crystal Lake
- Crystal Lawns
- Cuba
- Cullom village
- Curran village
- Cutler village
- Cypress village
- Dahlgren village
- Dakota village
- Dallas
- Dalton village
- Dalzell village
- Damiansville village
- Dana village
- Danforth village
- Danvers village
- Danville
- Darien
- Darmstadt
- Davis Junction village
- Davis village
- Dawson village
- Dayton
- De Land village
- De Pue village
- De Soto village
- De Witt village
- Decatur
- Deer Creek village
- Deer Grove village
- Deer Park village
- Deerfield village
- DeKalb
- Delavan
- Des Plaines
- Detroit village
- Diamond village
- Dieterich village
- Divernon village
- Dix village
- Dixmoor village
- Dixon
- Dolton village
- Dongola village
- Donnellson village
- Donovan village
- Dorchester village
- Dover village
- Dowell village
- Downers Grove village
- Downs village
- Du Bois village
- Du Quoin
- Dunfermline village
- Dunlap village
- Dupo village
- Durand village
- Dwight village
- Eagarville village
- Earlville
- East Alton village
- East Brooklyn village
- East Cape Girardeau village
- East Carondelet village
- East Dubuque
- East Dundee village
- East Galesburg village
- East Gillespie village
- East Hazel Crest village
- East Moline
- East Peoria
- East St. Louis
- Easton village
- Eddyville village
- Edgewood village
- Edinburg village
- Edwardsville
- Effingham
- El Dara village
- El Paso
- Elburn village
- Eldorado
- Eldred village
- Elgin
- Elizabeth village
- Elizabethtown village
- Elk Grove Village village
- Elkhart village
- Elkville village
- Elliott village
- Ellis Grove village
- Ellisville village
- Ellsworth village
- Elmhurst
- Elmwood
- Elmwood Park village
- Elsah village
- Elvaston village
- Elwood village
- Emden village
- Emington village
- Energy village
- Enfield village
- Equality village
- Erie village
- Essex village
- Eureka
- Evanston
- Evansville village
- Evergreen Park village
- Ewing village
- Exeter village
- Fairbury
- Fairfield
- Fairmont
- Fairmont village
- Fairmount village
- Fairview Heights
- Fairview village
- Farina village
- Farmer
- Farmersville village
- Farmington
- Fayetteville village
- Ferris village
- Fidelity village
- Fieldon village
- Fillmore village
- Findlay village
- Fisher village
- Fithian village
- Flanagan village
- Flat Rock village
- Flora
- Floraville
- Florence village
- Flossmoor village
- Foosland village
- Ford Heights village
- Forest Lake
- Forest Park village
- Forest View village
- Forest village
- Forrest village
- Forreston village
- Forsyth village
- Fox Lake Hills
- Fox Lake village
- Fox River Grove village
- Frankfort Square
- Frankfort village
- Franklin Grove village
- Franklin Park village
- Franklin village
- Freeburg village
- Freeman Spur village
- Freeport
- Fulton
- Fults village
- Gages Lake
- Galatia village
- Galena
- Galesburg
- Galva
- Garden Prairie village
- Gardner village
- Garrett village
- Gays village
- Geneseo
- Geneva
- Genoa
- Georgetown
- Georgetown
- German Valley village
- Germantown Hills village
- Germantown village
- Gibson
- Gifford village
- Gilberts village
- Gillespie
- Gilman
- Gilson
- Girard
- Gladstone village
- Glasford village
- Glasgow village
- Glen Carbon village
- Glen Ellyn village
- Glencoe village
- Glendale Heights village
- Glenview village
- Glenwood village
- Godfrey village
- Godley village
- Golconda
- Golden Gate village
- Golden village
- Golf village
- Good Hope village
- Goodfield village
- Goofy Ridge
- Goreville village
- Gorham village
- Grafton
- Grand Detour
- Grand Ridge village
- Grand Tower
- Grandview village
- Grandwood Park
- Granite
- Grant Park village
- Grantfork village
- Granville village
- Grayslake village
- Grayville
- Green Oaks village
- Green Valley village
- Greenfield
- Greenup village
- Greenview village
- Greenville
- Greenwood village
- Gridley village
- Griggsville
- Gulf Port village
- Gurnee village
- Hainesville village
- Hamburg village
- Hamel village
- Hamilton
- Hammond village
- Hampshire village
- Hampton village
- Hanaford village
- Hanna village
- Hanover Park village
- Hanover village
- Hardin village
- Harmon village
- Harrisburg
- Harrison
- Harristown village
- Hartford village
- Hartsburg village
- Harvard
- Harvel village
- Harvey
- Harwood Heights village
- Havana
- Hawthorn Woods village
- Hazel Crest village
- Hebron village
- Hecker village
- Henderson village
- Hennepin village
- Henning village
- Henry
- Heritage Lake
- Herrick village
- Herrin
- Herscher village
- Hettick village
- Heyworth village
- Hickory Hills
- Hidalgo village
- Highland
- Highland Park
- Highwood
- Hillcrest village
- Hillsboro
- Hillsdale village
- Hillside village
- Hillview village
- Hinckley village
- Hindsboro village
- Hinsdale village
- Hodgkins village
- Hoffman Estates village
- Hoffman village
- Holiday Hills village
- Holiday Shores
- Hollowayville village
- Homer Glen village
- Homer village
- Hometown
- Homewood village
- Hoopeston
- Hooppole village
- Hopedale village
- Hopewell village
- Hopkins Park village
- Hoyleton village
- Hudson village
- Huey village
- Hull village
- Humboldt village
- Hume village
- Huntley village
- Hurst
- Hutsonville village
- Illiopolis village
- Ina village
- Indian Creek village
- Indian Head Park village
- Indianola village
- Industry village
- Ingalls Park
- Inverness village
- Iola village
- Ipava village
- Iroquois village
- Irving village
- Irvington village
- Irwin village
- Island Lake village
- Itasca village
- Iuka village
- Ivesdale village
- Jacksonville
- Jeffersonville village
- Jeisyville village
- Jerome village
- Jerseyville
- Jewett village
- Johnsburg village
- Johnsonville village
- Johnston
- Joliet
- Jonesboro
- Joppa village
- Joy village
- Junction village
- Junction village
- Justice village
- Kampsville village
- Kane village
- Kaneville village
- Kangley village
- Kankakee
- Kansas village
- Kappa village
- Karnak village
- Kaskaskia village
- Keenes village
- Keensburg village
- Keithsburg
- Kell village
- Kempton village
- Kenilworth village
- Kenney village
- Kewanee
- Keyesport village
- Kilbourne village
- Kildeer village
- Kincaid village
- Kinderhook village
- Kingston Mines village
- Kingston village
- Kinmundy
- Kinsman village
- Kirkland village
- Kirkwood village
- Knollwood
- Knoxville
- La Fayette village
- La Grange Park village
- La Grange village
- La Harpe
- La Moille village
- La Prairie village
- La Rose village
- Lacon
- Ladd village
- Lake Barrington village
- Lake Bluff village
- Lake Camelot
- Lake Catherine
- Lake Forest
- Lake Holiday
- Lake in the Hills village
- Lake Ka-Ho village
- Lake of the Woods
- Lake Petersburg
- Lake Summerset
- Lake Villa village
- Lake Zurich village
- Lakemoor village
- Lakewood Shores
- Lakewood village
- Lanark
- Langleyville
- Lansing village
- LaPlace
- LaSalle
- Latham village
- Lawrenceville
- Le Roy
- Leaf River village
- Lebanon
- Lee village
- Leland Grove
- Leland village
- Lemont village
- Lena village
- Lenzburg village
- Leonore village
- Lerna village
- Lewistown
- Lexington
- Liberty village
- Libertyville village
- Lily Lake village
- Lima village
- Limestone village
- Lincoln
- Lincolnshire village
- Lincolnwood village
- Lindenhurst village
- Lisbon village
- Lisle village
- Litchfield
- Little York village
- Littleton village
- Liverpool village
- Livingston village
- Loami village
- Lockport
- Loda village
- Lomax village
- Lombard village
- London Mills village
- Long Creek village
- Long Grove village
- Long Lake
- Long Point village
- Longview village
- Loraine village
- Lost Nation
- Lostant village
- Louisville village
- Loves Park
- Lovington village
- Ludlow village
- Lyndon village
- Lynnville village
- Lynwood village
- Lyons village
- Macedonia village
- Machesney Park village
- Mackinaw village
- Macomb
- Macon
- Madison
- Maeystown village
- Magnolia village
- Mahomet village
- Makanda village
- Malden village
- Malta village
- Manchester village
- Manhattan village
- Manito village
- Manlius village
- Mansfield village
- Manteno village
- Maple Park village
- Mapleton village
- Maquon village
- Marengo
- Marietta village
- Marine village
- Marion
- Marissa village
- Mark village
- Markham
- Maroa
- Marquette Heights
- Marseilles
- Marshall
- Martinsville
- Martinton village
- Maryville village
- Mascoutah
- Mason
- Mason town
- Matherville village
- Matteson village
- Mattoon
- Maunie village
- Maywood village
- Mazon village
- McClure village
- McCook village
- McCullom Lake village
- McHenry
- McLean village
- McLeansboro
- McNabb village
- Mechanicsburg village
- Media village
- Medora village
- Melrose Park village
- Melvin village
- Mendon village
- Mendota
- Menominee village
- Meredosia village
- Merrionette Park village
- Metamora village
- Metcalf village
- Metropolis
- Mettawa village
- Middletown village
- Midlothian village
- Milan village
- Milford village
- Mill Creek village
- Mill Shoals village
- Millbrook village
- Milledgeville village
- Millington village
- Millstadt village
- Milton village
- Mineral village
- Minier village
- Minonk
- Minooka village
- Mitchell
- Modesto village
- Mokena village
- Moline
- Momence
- Monee village
- Monmouth
- Monroe Center village
- Montgomery village
- Monticello
- Montrose village
- Morris
- Morrison
- Morrisonville village
- Morton Grove village
- Morton village
- Mound
- Mound Station village
- Mounds
- Mount Auburn village
- Mount Carmel
- Mount Carroll
- Mount Clare village
- Mount Erie village
- Mount Morris village
- Mount Olive
- Mount Prospect village
- Mount Pulaski
- Mount Sterling
- Mount Vernon
- Mount Zion village
- Moweaqua village
- Muddy village
- Mulberry Grove village
- Mulkeytown
- Muncie village
- Mundelein village
- Murphysboro
- Murrayville village
- Naperville
- Naplate village
- Naples town
- Nashville
- Nason
- Nauvoo
- Nebo village
- Nelson village
- Neoga
- Neponset village
- New Athens village
- New Baden village
- New Bedford village
- New Berlin village
- New Boston
- New Burnside village
- New Canton town
- New Douglas village
- New Grand Chain village
- New Haven village
- New Holland village
- New Lenox village
- New Milford village
- New Minden village
- New Salem village
- Newark village
- Newman
- Newton
- Niantic village
- Niles village
- Nilwood town
- Noble village
- Nokomis
- Nora village
- Normal town
- Norridge village
- Norris village
- Norris village
- North Aurora village
- North Barrington village
- North Chicago
- North Henderson village
- North Pekin village
- North Riverside village
- North Utica village
- North village
- Northbrook village
- Northfield village
- Northlake
- Norwood village
- Oak Brook village
- Oak Forest
- Oak Grove village
- Oak Lawn village
- Oak Park village
- Oak Run
- Oakbrook Terrace
- Oakdale village
- Oakford village
- Oakland
- Oakwood Hills village
- Oakwood village
- Oblong village
- Oconee village
- Odell village
- Odin village
- O'Fallon
- Ogden village
- Oglesby
- Ohio village
- Ohlman village
- Okawville village
- Old Mill Creek village
- Old Ripley village
- Old Shawneetown village
- Olive Branch
- Olivet
- Olmsted village
- Olney
- Olympia Fields village
- Omaha village
- Onarga village
- Oneida
- Opdyke
- Oquawka village
- Orangeville village
- Oreana village
- Oregon
- Orient
- Orion village
- Orland Hills village
- Orland Park village
- Oswego village
- Ottawa
- Otterville town
- Owaneco village
- Paderborn
- Palatine village
- Palestine village
- Palmer village
- Palmyra village
- Palos Heights
- Palos Hills
- Palos Park village
- Pana
- Panama village
- Panola village
- Papineau village
- Paris
- Park
- Park Forest village
- Park Ridge
- Parkersburg village
- Patoka village
- Paw Paw village
- Pawnee village
- Paxton
- Payson village
- Pearl village
- Pearl village
- Pecatonica village
- Pekin
- Penfield
- Peoria
- Peoria Heights village
- Peotone village
- Percy village
- Perry village
- Peru
- Pesotum village
- Petersburg
- Phillipstown village
- Philo village
- Phoenix village
- Pierron village
- Pinckneyville
- Pingree Grove village
- Piper village
- Pistakee Highlands
- Pittsburg village
- Pittsfield
- Plainfield village
- Plainville village
- Plano
- Plattville village
- Pleasant Hill village
- Pleasant Plains village
- Plymouth village
- Pocahontas village
- Polo
- Pontiac
- Pontoon Beach village
- Pontoosuc village
- Poplar Grove village
- Port Barrington village
- Port Byron village
- Posen village
- Potomac village
- Prairie du Rocher village
- Prairie Grove village
- Prairie village
- Prestbury
- Preston Heights
- Princeton
- Princeville village
- Prophetstown
- Prospect Heights
- Pulaski village
- Quincy
- Radom village
- Raleigh village
- Ramsey village
- Rankin village
- Ransom village
- Rantoul village
- Rapids village
- Raritan village
- Raymond village
- Red Bud
- Reddick village
- Redmon village
- Rentchler
- Reynolds village
- Richmond village
- Richton Park village
- Richview village
- Ridge Farm village
- Ridgway village
- Ridott village
- Ringwood village
- Rio village
- Ripley village
- River Forest village
- River Grove village
- Riverdale village
- Riverside village
- Riverton village
- Riverwoods village
- Roanoke village
- Robbins village
- Roberts village
- Robinson
- Rochelle
- Rochester village
- Rock Falls
- Rock Island
- Rock Island Arsenal
- Rock village
- Rockbridge village
- Rockdale village
- Rockford
- Rockton village
- Rockwood village
- Rolling Meadows
- Rome
- Romeoville village
- Roodhouse
- Roscoe village
- Rose Hill village
- Roselle village
- Rosemont village
- Roseville village
- Rosewood Heights
- Rosiclare
- Rossville village
- Round Lake Beach village
- Round Lake Heights village
- Round Lake Park village
- Round Lake village
- Roxana village
- Royal Lakes village
- Royal village
- Royalton village
- Ruma village
- Rushville
- Russellville village
- Rutland village
- Sadorus village
- Sailor Springs village
- Salem
- Sammons Point village
- San Jose village
- Sandoval village
- Sandwich
- Sauget village
- Sauk Village village
- Saunemin village
- Savanna
- Savoy village
- Sawyerville village
- Saybrook village
- Scales Mound village
- Schaumburg village
- Schiller Park village
- Schram village
- Sciota village
- Scott AFB
- Scottville village
- Seaton village
- Seatonville village
- Secor village
- Seneca village
- Sesser
- Seymour
- Shabbona village
- Shannon village
- Shawneetown
- Sheffield village
- Shelbyville
- Sheldon village
- Sheridan village
- Sherman village
- Sherrard village
- Shiloh village
- Shipman town
- Shorewood village
- Shumway village
- Sibley village
- Sidell village
- Sidney village
- Sigel town
- Silvis
- Simpson village
- Sims village
- Skokie village
- Sleepy Hollow village
- Smithboro village
- Smithfield village
- Smithton village
- Somonauk village
- Sorento village
- South Barrington village
- South Beloit
- South Chicago Heights village
- South Elgin village
- South Holland village
- South Jacksonville village
- South Pekin village
- South Roxana village
- South Wilmington village
- Southern View village
- Sparland village
- Sparta
- Spaulding village
- Spillertown village
- Spring Bay village
- Spring Grove village
- Spring Valley
- Springerton village
- Springfield
- St. Anne village
- St. Augustine village
- St. Charles
- St. David village
- St. Elmo
- St. Francisville
- St. Jacob village
- St. Johns village
- St. Joseph village
- St. Libory village
- St. Peter village
- Standard village
- Standard village
- Stanford village
- Staunton
- Ste. Marie village
- Steeleville village
- Steger village
- Sterling
- Steward village
- Stewardson village
- Stickney village
- Stillman Valley village
- Stockton village
- Stone Park village
- Stonefort village
- Stonington village
- Stoy village
- Strasburg village
- Strawn village
- Streamwood village
- Streator
- Stronghurst village
- Sublette village
- Sugar Grove village
- Sullivan
- Summerfield village
- Summit village
- Sumner
- Sun River Terrace village
- Swansea village
- Sycamore
- Symerton village
- Table Grove village
- Tallula village
- Tamaroa village
- Tamms village
- Tampico village
- Taylor Springs village
- Taylorville
- Tennessee village
- Teutopolis village
- Thawville village
- Thayer village
- The Galena Territory
- Thebes village
- Third Lake village
- Thomasboro village
- Thompsonville village
- Thomson village
- Thornton village
- Tilden village
- Tilton village
- Timberlane village
- Time village
- Tinley Park village
- Tiskilwa village
- Toledo village
- Tolono village
- Toluca
- Tonica village
- Topeka village
- Toulon
- Tovey village
- Towanda village
- Tower Hill village
- Tower Lakes village
- Tremont village
- Trenton
- Trout Valley village
- Troy
- Troy Grove village
- Tuscola
- Twin Grove
- Ullin village
- Union Hill village
- Union village
- University Park village
- Urbana
- Ursa village
- Valier village
- Valley village
- Valmeyer village
- Vandalia
- Varna village
- Venedy village
- Venetian Village
- Venice
- Vergennes village
- Vermilion village
- Vermont village
- Vernon Hills village
- Vernon village
- Verona village
- Versailles village
- Victoria village
- Vienna
- Villa Grove
- Villa Park village
- Viola village
- Virden
- Virgil village
- Virginia
- Volo village
- Wadsworth village
- Waggoner village
- Walnut Hill village
- Walnut village
- Walshville village
- Waltonville village
- Wamac
- Wapella village
- Warren village
- Warrensburg village
- Warrenville
- Warsaw
- Washburn village
- Washington
- Washington Park village
- Wataga village
- Waterloo
- Waterman village
- Watseka
- Watson village
- Wauconda village
- Waukegan
- Waverly
- Wayne village
- Wayne village
- Waynesville village
- Weldon village
- Wellington village
- Wenona
- Wenonah village
- West Brooklyn village
- West Chicago
- West Dundee village
- West Frankfort
- West Peoria
- West Point village
- West Salem village
- West Union
- West village
- West York
- Westchester village
- Western Springs village
- Westervelt
- Westfield village
- Westmont village
- Westville village
- Wheaton
- Wheeler village
- Wheeling village
- White Hall
- White Heath
- White village
- Whiteash village
- Williamsfield village
- Williamson village
- Williamsville village
- Willisville village
- Willow Hill village
- Willow Springs village
- Willowbrook
- Willowbrook village
- Wilmette village
- Wilmington
- Wilmington village
- Wilsonville village
- Winchester
- Windsor
- Windsor village
- Winfield village
- Winnebago village
- Winnetka village
- Winslow village
- Winthrop Harbor village
- Witt
- Wonder Lake village
- Wood Dale
- Wood River
- Woodhull village
- Woodland village
- Woodlawn village
- Woodridge village
- Woodson village
- Woodstock
- Worden village
- Worth village
- Wyanet village
- Wyoming
- Xenia village
- Yale village
- Yates village
- Yorkville
- Zeigler
- Zion
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