| Zip code | Name | Area Code(s) |
| 61001 Apple River (815/779) |
| 61006 Ashton (815/779) |
| 61007 Baileyville (815/779) |
| 61008 Belvidere (815/779) |
| 61010 Byron (815/779) |
| 61011 Argyle (815/779) |
| 61011 Caledonia (815/779) |
| 61012 Capron (815/779) |
| 61013 Cedarville (815/779) |
| 61014 Chadwick (815/779) |
| 61015 Chana (815/779) |
| 61015 Honey Creek (815/779) |
| 61015 Paynes Point (815/779) |
| 61016 Cherry Valley (815/779) |
| 61016 Irene (815/779) |
| 61018 Dakota (815/779) |
| 61019 Davis (815/779) |
| 61020 Davis Jct (815/779) |
| 61020 Davis Junction (815/779) |
| 61021 Dixon (815/779) |
| 61021 Grand Detour (815/779) |
| 61021 Nelson (815/779) |
| 61021 Prairieville (815/779) |
| 61021 Walton (815/779) |
| 61024 Durand (815/779) |
| 61025 East Dubuque (815/779) |
| 61025 Menominee (815/779) |
| 61027 Eleroy (815/779) |
| 61028 Elizabeth (815/779) |
| 61028 Woodbine (815/779) |
| 61030 Forreston (815/779) |
| 61030 Haldane (815/779) |
| 61031 Franklin Grove (815/779) |
| 61031 Franklin Grv (815/779) |
| 61032 Freeport (815/779) |
| 61032 Scioto Mills (815/779) |
| 61036 Galena (815/779) |
| 61037 Galt (815/779) |
| 61038 Bonus (815/779) |
| 61038 Garden Pr (815/779) |
| 61038 Garden Prairie (815/779) |
| 61039 German Valley (815/779) |
| 61041 Hanover (815/779) |
| 61042 Harmon (815/779) |
| 61043 Holcomb (815/779) |
| 61044 Kent (815/779) |
| 61046 Lake Carroll (815/779) |
| 61046 Lanark (815/779) |
| 61047 Egan (815/779) |
| 61047 Leaf River (815/779) |
| 61048 Lena (815/779) |
| 61048 Waddams Grove (815/779) |
| 61049 Lindenwood (815/779) |
| 61050 Mc Connell (815/779) |
| 61050 McConnell (815/779) |
| 61051 Milledgeville (815/779) |
| 61052 Monroe Center (815/779) |
| 61053 Mount Carroll (815/779) |
| 61054 Mount Morris (815/779) |
| 61057 Nachusa (815/779) |
| 61059 Nora (815/779) |
| 61060 Oneco (815/779) |
| 61060 Orangeville (815/779) |
| 61061 Oregon (815/779) |
| 61062 Loran (815/779) |
| 61062 Pearl City (815/779) |
| 61063 Pecatonica (815/779) |
| 61064 Brookville (815/779) |
| 61064 Polo (815/779) |
| 61064 Stratford (815/779) |
| 61065 Blaine (815/779) |
| 61065 Candlewick Lake (815/779) |
| 61065 Poplar Grove (815/779) |
| 61067 Ridott (815/779) |
| 61068 Flag Center (815/779) |
| 61068 Flagg (815/779) |
| 61068 Hillcrest (815/779) |
| 61068 Kings (815/779) |
| 61068 Rochelle (815/779) |
| 61070 Rock City (815/779) |
| 61070 Rock Grove (815/779) |
| 61071 Rock Falls (815/779) |
| 61071 Yeoward Addition (815/779) |
| 61071 Yeowardville (815/779) |
| 61072 Rockton (815/779) |
| 61073 Roscoe (815/779) |
| 61074 Savanna (815/779) |
| 61074 Savanna Army Depot (815/779) |
| 61075 Scales Mound (815/779) |
| 61075 Scalesmound (815/779) |
| 61077 Seward (815/779) |
| 61078 Shannon (815/779) |
| 61079 Shirland (815/779) |
| 61080 Beloit (815/779) |
| 61080 South Beloit (815/779) |
| 61081 Coleta (815/779) |
| 61081 Sterling (815/779) |
| 61084 Stillman Valley (815/779) |
| 61085 Stockton (815/779) |
| 61085 Woodbine (815/779) |
| 61087 Warren (815/779) |
| 61088 Winnebago (815/779) |
| 61089 Winslow (815/779) |
| 61091 Woosung (815/779) |
| 61101 Rockford (815/779) |
| 61102 Rockford (815/779) |
| 61103 Machesney Park (815/779) |
| 61103 Rockford (815/779) |
| 61104 Rockford (815/779) |
| 61105 Rockford (815/779) |
| 61106 Rockford (815/779) |
| 61107 Rockford (815/779) |
| 61108 Rockford (815/779) |
| 61109 Morristown (815/779) |
| 61109 New Milford (815/779) |
| 61109 Rockford (815/779) |
| 61110 Rockford (815/779) |
| 61111 Loves Park (815/779) |
| 61111 Machesney Park (815/779) |
| 61112 Rockford (815/779) |
| 61114 Rockford (815/779) |
| 61115 Loves Park (815/779) |
| 61115 Machesney Park (815/779) |
| 61125 Rockford (815/779) |
| 61126 Rockford (815/779) |
| 61130 Loves Park (815/779) |
| 61131 Loves Park (815/779) |
| 61132 Loves Park (815/779) |
| 61201 Rock Island (309) |
| 61204 Rock Island (309) |
| 61230 Albany (309) |
| 61230 Ceffco (309) |
| 61231 Aledo (309) |
| 61231 Hamlet (309) |
| 61231 Mercer (309) |
| 61231 Ohio Grove (309) |
| 61231 Old Gilchrist (309) |
| 61231 Shale City (309) |
| 61231 Sunbeam (309) |
| 61231 Wanlock (309) |
| 61232 Andalusia (309) |
| 61233 Andover (309) |
| 61234 Annawan (309) |
| 61235 Alba (309) |
| 61235 Atkinson (309) |
| 61235 Cornwall (309) |
| 61236 Barstow (309) |
| 61237 Buffalo Pr (309) |
| 61237 Buffalo Prairie (309) |
| 61238 Cambridge (309) |
| 61238 Munson (309) |
| 61238 Ulah (309) |
| 61238 Weller (309) |
| 61239 Carbon Cliff (309) |
| 61240 Coal Valley (309) |
| 61241 Cleveland (309) |
| 61241 Colona (309) |
| 61241 Green Rock (309) |
| 61242 Cordova (309) |
| 61243 Deer Grove (815/779) |
| 61244 Babcock (309) |
| 61244 Campbells Island (309) |
| 61244 East Moline (309) |
| 61244 Meersman (309) |
| 61244 Merry Oaks (309) |
| 61244 South Moline (309) |
| 61244 Watertown (309) |
| 61244 Whites Addition (309) |
| 61250 Erie (309) |
| 61251 Fenton (309) |
| 61252 East Clinton (815/779) |
| 61252 East Fulton (815/779) |
| 61252 Fulton (815/779) |
| 61252 Garden Plain (815/779) |
| 61254 Geneseo (309) |
| 61254 Hanna (309) |
| 61256 Hampton (309) |
| 61257 Hillsdale (309) |
| 61258 Annawan (815/779) |
| 61258 Hooppole (815/779) |
| 61259 Illinois City (309) |
| 61260 Joy (309) |
| 61261 Lyndon (815/779) |
| 61262 Lynn (309) |
| 61262 Lynn Center (309) |
| 61262 Swedona (309) |
| 61263 Matherville (309) |
| 61264 Milan (309) |
| 61265 Moline (309) |
| 61265 Quad City Airport (309) |
| 61266 Moline (309) |
| 61270 Clyde (815/779) |
| 61270 Genesee (815/779) |
| 61270 Malvern (815/779) |
| 61270 Morrison (815/779) |
| 61270 Round Grove (815/779) |
| 61270 Union Grove (815/779) |
| 61270 Ustick (815/779) |
| 61272 Eliza (309) |
| 61272 New Boston (309) |
| 61273 Orion (309) |
| 61273 Sunny Hill (309) |
| 61273 Sunny Hill Estates (309) |
| 61273 Warner (309) |
| 61273 Western (309) |
| 61274 Osco (309) |
| 61275 Byron Hills (309) |
| 61275 Coe (309) |
| 61275 Mobet Meadows (309) |
| 61275 Port Byron (309) |
| 61276 Preemption (309) |
| 61277 Brookhaven (815/779) |
| 61277 Leon Corners (815/779) |
| 61277 Portland (815/779) |
| 61277 Portland Corners (815/779) |
| 61277 Prophetstown (815/779) |
| 61277 Wethersfield (815/779) |
| 61278 Rapids City (309) |
| 61279 Marston (309) |
| 61279 Perryton (309) |
| 61279 Reynolds (309) |
| 61281 Boden (309) |
| 61281 Cable (309) |
| 61281 Richland Grove (309) |
| 61281 Sherrard (309) |
| 61282 Silvis (309) |
| 61283 Hahnaman (815/779) |
| 61283 Tampico (815/779) |
| 61283 Thomas (815/779) |
| 61284 Taylor Ridge (309) |
| 61285 Thompson (815/779) |
| 61285 Thomson (815/779) |
| 61299 Rock Island (309) |
| 61299 Rock Island Arsonal (309) |
| 61301 Dimmick (815/779) |
| 61301 La Salle (815/779) |
| 61301 Rockwell (815/779) |
| 61301 Tomahawk Bluff (815/779) |
| 61310 Amboy (815/779) |
| 61310 Binghampton (815/779) |
| 61310 Maytown (815/779) |
| 61310 Shaws (815/779) |
| 61311 Ancona (815/779) |
| 61311 Reading (815/779) |
| 61312 Arlington (815/779) |
| 61313 Blackstone (815/779) |
| 61313 Sunbury (815/779) |
| 61314 Buda (309) |
| 61315 Bureau (815/779) |
| 61315 Bureau Junction (815/779) |
| 61316 Cedar Point (815/779) |
| 61317 Cherry (815/779) |
| 61318 Compton (815/779) |
| 61318 The Burg (815/779) |
| 61319 Cornell (815/779) |
| 61319 Manville (815/779) |
| 61320 Dalzell (815/779) |
| 61321 Dana (815/779) |
| 61322 De Pue (815/779) |
| 61322 Depue (815/779) |
| 61322 Depue Junction (815/779) |
| 61322 Howe (815/779) |
| 61323 Dover (815/779) |
| 61324 Eldena (815/779) |
| 61325 Farm Ridge (815/779) |
| 61325 Grand Ridge (815/779) |
| 61326 Granville (815/779) |
| 61327 Florid (815/779) |
| 61327 Hennepin (815/779) |
| 61328 Kasbeer (815/779) |
| 61329 Ladd (815/779) |
| 61329 Ladd Junction (815/779) |
| 61330 La Moille (815/779) |
| 61331 Lee Center (815/779) |
| 61332 Leonore (815/779) |
| 61333 Long Point (815/779) |
| 61334 Lostant (815/779) |
| 61334 Mount Palatine (815/779) |
| 61335 Mc Nabb (815/779) |
| 61335 McNabb (815/779) |
| 61336 Lake Wildwood (815/779) |
| 61336 Magnolia (815/779) |
| 61337 Malden (815/779) |
| 61337 Zearing (815/779) |
| 61338 Manlius (815/779) |
| 61340 Mark (815/779) |
| 61341 Danway (815/779) |
| 61341 Marseilles (815/779) |
| 61342 Mendota (815/779) |
| 61342 Meriden (815/779) |
| 61344 Mineral (309) |
| 61345 Neponset (309) |
| 61346 New Bedford (815/779) |
| 61348 Jonesville (815/779) |
| 61348 Oglesby (815/779) |
| 61348 Piety Hill (815/779) |
| 61349 Limerick (815/779) |
| 61349 Ohio (815/779) |
| 61350 Brickton (815/779) |
| 61350 Dayton (815/779) |
| 61350 Naplate (815/779) |
| 61350 North Ottawa (815/779) |
| 61350 Ottawa (815/779) |
| 61350 Prairie Center (815/779) |
| 61350 Stoneyville (815/779) |
| 61350 Woodland Addition (815/779) |
| 61353 Paw Paw (815/779) |
| 61354 Peru (815/779) |
| 61356 Coal Hollow (815/779) |
| 61356 Hollowayville (815/779) |
| 61356 Princeton (815/779) |
| 61358 Rutland (815/779) |
| 61359 Seatonville (815/779) |
| 61360 Seneca (815/779) |
| 61360 Stavanger (815/779) |
| 61361 Sheffield (815/779) |
| 61362 Ottoville (815/779) |
| 61362 Spring Valley (815/779) |
| 61362 Webster Park (815/779) |
| 61363 Standard (815/779) |
| 61364 Kangley (815/779) |
| 61364 Kernan (815/779) |
| 61364 Missal (815/779) |
| 61364 Munster (815/779) |
| 61364 South Streator (815/779) |
| 61364 Streator (815/779) |
| 61364 Streator East (815/779) |
| 61364 Streator West (815/779) |
| 61367 Sublette (815/779) |
| 61368 Lone Tree (815/779) |
| 61368 Providence (815/779) |
| 61368 Tiskilwa (815/779) |
| 61369 Pattonsburg (815/779) |
| 61369 Toluca (815/779) |
| 61370 Lowell (815/779) |
| 61370 Tonica (815/779) |
| 61370 Vermilionville (815/779) |
| 61371 Triumph (815/779) |
| 61372 Troy Grove (815/779) |
| 61373 North Utica (815/779) |
| 61373 Utica (815/779) |
| 61374 Van Orin (815/779) |
| 61375 Varna (309) |
| 61376 Normandy (815/779) |
| 61376 Walnut (815/779) |
| 61377 East Wenona (815/779) |
| 61377 Evans (815/779) |
| 61377 Garfield (815/779) |
| 61377 Leeds (815/779) |
| 61377 Wenona (815/779) |
| 61378 West Brooklyn (815/779) |
| 61379 Wyanet (815/779) |
| 61401 Galesburg (309) |
| 61401 Henderson Grove (309) |
| 61402 Galesburg (309) |
| 61410 Abingdon (309) |
| 61411 Adair (309) |
| 61412 Alexis (309) |
| 61412 Shanghai City (309) |
| 61413 Alpha (309) |
| 61414 Altona (309) |
| 61415 Avon (309) |
| 61415 Check Row (309) |
| 61415 Greenbush (309) |
| 61416 Bardolph (309) |
| 61417 Berwick (309) |
| 61418 Biggsville (309) |
| 61419 Bishop Hill (309) |
| 61420 Blandinsville (309) |
| 61421 Bradford (309) |
| 61421 Broadmoor (309) |
| 61421 Lombardville (309) |
| 61421 Milo (309) |
| 61421 Osceola (309) |
| 61422 Bushnell (309) |
| 61423 Cameron (309) |
| 61424 Camp Grove (309) |
| 61425 Carman (309) |
| 61425 Carthage Lake (309) |
| 61425 Gulfport (309) |
| 61425 Shokokon (309) |
| 61426 Castleton (309) |
| 61427 Cuba (309) |
| 61428 Appleton (309) |
| 61428 Dahinda (309) |
| 61428 Oak Run (309) |
| 61430 Columbia Heights (309) |
| 61430 East Galesburg (309) |
| 61431 Ellisville (309) |
| 61432 Fairview (309) |
| 61432 Joshua (309) |
| 61433 Fiatt (309) |
| 61434 Galva (309) |
| 61435 Gerlaw (309) |
| 61436 Delong (309) |
| 61436 Gilson (309) |
| 61437 Gladstone (309) |
| 61438 Good Hope (309) |
| 61439 Henderson (309) |
| 61440 Industry (309) |
| 61441 Bernadotte (309) |
| 61441 Ipava (309) |
| 61442 Keithsburg (309) |
| 61443 Kewanee (309) |
| 61447 Kirkwood (309) |
| 61447 Rozetta (309) |
| 61447 Tompkins (309) |
| 61448 Knoxville (309) |
| 61449 La Fayette (309) |
| 61450 La Crosse (217) |
| 61450 La Harpe (217) |
| 61451 Elmore (309) |
| 61451 Laura (309) |
| 61452 Doddsville (309) |
| 61452 Littleton (309) |
| 61453 Eleanor (309) |
| 61453 Little York (309) |
| 61454 Lomax (217) |
| 61455 Macomb (309) |
| 61458 Hermon (309) |
| 61458 Maquon (309) |
| 61459 Marietta (309) |
| 61459 New Philadelphia (309) |
| 61460 Media (309) |
| 61462 Larchland (309) |
| 61462 Monmouth (309) |
| 61462 Ormonde (309) |
| 61465 New Windsor (309) |
| 61466 North Henderson (309) |
| 61467 Oneida (309) |
| 61468 Opheim (309) |
| 61468 Ophiem (309) |
| 61469 Oquawka (309) |
| 61470 Prairie City (309) |
| 61470 Walnut Grove (309) |
| 61471 Raritan (309) |
| 61472 Rio (309) |
| 61473 Roseville (309) |
| 61473 Swan Creek (309) |
| 61473 Youngstown (309) |
| 61474 Saint Augustine (309) |
| 61475 Blandinsville (309) |
| 61475 Sciota (309) |
| 61476 Seaton (309) |
| 61477 Blyton (309) |
| 61477 Seville (309) |
| 61477 Smithfield (309) |
| 61478 Ellison (309) |
| 61478 Smithshire (309) |
| 61479 Speer (309) |
| 61480 Decorra (309) |
| 61480 Hopper (309) |
| 61480 Olena (309) |
| 61480 Stronghurst (309) |
| 61482 Table Grove (309) |
| 61483 Elmira (309) |
| 61483 Goshen (309) |
| 61483 Saxton (309) |
| 61483 Toulon (309) |
| 61483 West Jersey (309) |
| 61484 Vermont (309) |
| 61485 Victoria (309) |
| 61486 Viola (309) |
| 61488 Wataga (309) |
| 61489 Williamsfield (309) |
| 61490 Nekoma (309) |
| 61490 Woodhull (309) |
| 61491 Modena (309) |
| 61491 Wyoming (309) |