Lead pipes in Illinois cities and towns
Find your city to see which water system serves it and how many lead service lines that system reported. 649 Illinois cities and towns with 1,000+ residents.
| City | Water system | Lead + galv. | Unknown |
|---|---|---|---|
| Abingdon | Abingdon | 0 | 0 |
| Addison | Addison | 16 | 325 |
| Albers | Albers | 0 | 0 |
| Albion | Albion | 0 | 0 |
| Aledo | Aledo | 0 | 0 |
| Algonquin | Algonquin | 0 | 0 |
| Alsip | Alsip | 0 | 0 |
| Altamont | Altamont | 0 | 0 |
| Alton | IL American-Alton | 514 | 7,995 |
| Amboy | Amboy | 183 | 0 |
| Andalusia | IL American-Andalusia | 0 | 144 |
| Anna | Anna | 1,218 | 219 |
| Antioch | Antioch | 1,910 | 0 |
| Arcola | Arcola | 0 | 0 |
| Arlington Heights | Arlington Heights | 3,832 | 51 |
| Arthur | Arthur | 0 | 0 |
| Ashland | Ashland | 0 | 0 |
| Assumption | Assumption | 108 | 106 |
| Athens | Athens | 0 | 0 |
| Atlanta | Atlanta | 0 | 0 |
| Atwood | Atwood | 0 | 0 |
| Auburn | Auburn | 0 | 0 |
| Aurora | Aurora | 16,063 | 16 |
| Aviston | Aviston | 0 | 0 |
| Bannockburn | Bannockburn | 1 | 0 |
| Barrington | Barrington | 432 | 0 |
| Barrington Hills | Carpentersville | 47 | 0 |
| Barry | Barry | 11 | 0 |
| Bartlett | Bartlett | 71 | 0 |
| Bartonville | IL American-Peoria | 11,442 | 24,303 |
| Batavia | Batavia | 385 | 0 |
| Beach Park | Beach Park | 0 | 0 |
| Beardstown | Beardstown | 156 | 0 |
| Beecher | Beecher | 1 | 11 |
| Belleville | IL American-East St Louis | 1,100 | 34,431 |
| Bellevue | IL American-Peoria | 11,442 | 24,303 |
| Bellwood | Bellwood | 1,257 | 930 |
| Belvidere | Belvidere | 877 | 3,348 |
| Bement | Bement | 0 | 429 |
| Benld | Benld | 6 | 8 |
| Bensenville | Bensenville | 573 | 0 |
| Benton | Benton | 0 | 3,756 |
| Berkeley | Berkeley | 472 | 77 |
| Berwyn | Berwyn | 10,828 | 174 |
| Bethalto | Bethalto | 0 | 0 |
| Bethany | Bethany | 0 | 0 |
| Big Rock | Sugar Grove | 0 | 0 |
| Bloomingdale | Bloomingdale | 0 | 0 |
| Bloomington | Bloomington | 5,531 | 5,482 |
| Blue Island | Blue Island | 778 | 4,540 |
| Blue Mound | Blue Mound | 0 | 161 |
| Bolingbrook | IL American-West Suburban | 0 | 0 |
| Bourbonnais | Aqua Illinois-Kankakee | 2,206 | 4,304 |
| Bradley | Aqua Illinois-Kankakee | 2,206 | 4,304 |
| Braidwood | Braidwood | 0 | 1,159 |
| Breese | Breese | 0 | 0 |
| Bridgeport | Bridgeport | 0 | 0 |
| Bridgeview | Bridgeview | 0 | 0 |
| Brighton | Brighton | 0 | 0 |
| Broadview | Broadview | 951 | 1,635 |
| Brookfield | Brookfield | 1,946 | 531 |
| Buffalo Grove | Buffalo Grove | 0 | 0 |
| Bull Valley | McHenry | 304 | 0 |
| Bunker Hill | Bunker Hill | 0 | 0 |
| Burbank | Central Stickney SD | 35 | 540 |
| Burnham | Burnham | 711 | 356 |
| Burr Ridge | Burr Ridge | 0 | 0 |
| Bushnell | Bushnell | 29 | 58 |
| Byron | Byron | 91 | 6 |
| Cahokia Heights | Cahokia Heights | 0 | 0 |
| Cairo | IL American-Cairo | 27 | 2,401 |
| Calumet | Calumet City | 4,122 | 1,224 |
| Calumet Park | Calumet Park | 2,231 | 3 |
| Cambria | Cambria | 0 | 0 |
| Cambridge | Cambridge | 306 | 168 |
| Camp Point | Camp Point | 0 | 0 |
| Campton Hills | IL American-Ferson Creek | 0 | 378 |
| Canton | Canton | 937 | 1,935 |
| Capron | Capron | 2 | 0 |
| Carbon Cliff | Carbon Cliff | 0 | 0 |
| Carbondale | Carbondale | 0 | 0 |
| Carlinville | Carlinville | 101 | 558 |
| Carlyle | Carlyle | 25 | 0 |
| Carmi | Carmi | 0 | 0 |
| Carol Stream | Carol Stream | 0 | 0 |
| Carpentersville | Carpentersville | 47 | 0 |
| Carrier Mills | Carrier Mills | 0 | 0 |
| Carrollton | Carrollton | 763 | 0 |
| Carterville | Carterville | 0 | 0 |
| Carthage | Carthage | 4 | 4 |
| Cary | Cary | 2 | 0 |
| Casey | Casey | 0 | 459 |
| Caseyville | Caseyville | 0 | 0 |
| Catlin | Catlin | 0 | 886 |
| Central | Centralia | 62 | 3,536 |
| Centralia | Centralia | 62 | 3,536 |
| Cerro Gordo | Cerro Gordo | 1 | 14 |
| Champaign | IL American-Champaign | 1,728 | 14,962 |
| Channahon | Channahon | 0 | 0 |
| Charleston | Charleston | 1 | 5,702 |
| Chatham | Chatham | 0 | 2,934 |
| Chatsworth | Chatsworth | 5 | 55 |
| Chebanse | Chebanse | 0 | 0 |
| Chenoa | Chenoa | 34 | 465 |
| Cherry Valley | Cherry Valley | 0 | 0 |
| Chester | Chester | 0 | 0 |
| Chicago | Chicago | 360,857 | 39,427 |
| Chicago Heights | Chicago Heights | 2,812 | 6,477 |
| Chicago Ridge | Chicago Ridge | 0 | 0 |
| Chillicothe | Chillicothe | 0 | 1 |
| Chrisman | Chrisman | 0 | 0 |
| Christopher | Christopher | 0 | 0 |
| Cicero | Cicero | 13,039 | 1,148 |
| Clarendon Hills | Clarendon Hills | 160 | 0 |
| Clifton | Clifton | 0 | 0 |
| Clinton | Clinton | 0 | 0 |
| Coal | Coal City | 427 | 0 |
| Coal Valley | Coal Valley | 0 | 0 |
| Cobden | Cobden | 0 | 0 |
| Colchester | Colchester | 0 | 0 |
| Collinsville | Collinsville | 13 | 41 |
| Colona | Colona East | 0 | 0 |
| Columbia | Columbia | 0 | 0 |
| Cortland | Cortland | 0 | 0 |
| Country Club Hills | Country Club Hills | 0 | 0 |
| Countryside | Countryside | 0 | 0 |
| Crainville | Crainville | 0 | 0 |
| Crest Hill | Crest Hill | 138 | 1,369 |
| Crestwood | Crestwood | 0 | 0 |
| Crete | Crete | 3,474 | 181 |
| Creve Coeur | Creve Coeur | 0 | 0 |
| Crystal Lake | Crystal Lake | 0 | 1,422 |
| Cuba | Cuba | 0 | 0 |
| Danvers | Danvers | 0 | 80 |
| Danville | Aqua Illinois-Vermilion County | 410 | 15,402 |
| Darien | Darien | 0 | 1,407 |
| Davis Junction | Davis Junction | 0 | 0 |
| De Pue | De Pue | 122 | 21 |
| De Soto | De Soto | 0 | 0 |
| Decatur | Decatur | 6,535 | 12 |
| Deer Park | Lake Zurich | 26 | 28 |
| Deerfield | Deerfield | 276 | 1,396 |
| DeKalb | Dekalb | 192 | 0 |
| Delavan | Delavan | 51 | 0 |
| Des Plaines | Des Plaines | 3,075 | 5,634 |
| Diamond | Diamond | 0 | 0 |
| Divernon | Divernon | 0 | 0 |
| Dixmoor | Dixmoor | 24 | 756 |
| Dixon | Dixon | 305 | 22 |
| Dolton | Dolton | 2,358 | 4,625 |
| Downers Grove | Downers Grove | 1,466 | 1,330 |
| Downs | Downs | 0 | 0 |
| Du Quoin | Duquoin | 1,228 | 1,125 |
| Dunlap | Dunlap | 0 | 0 |
| Dupo | Dupo | 0 | 0 |
| Durand | Durand | 0 | 0 |
| Dwight | Dwight | 5 | 431 |
| Earlville | Earlville | 2 | 0 |
| East Alton | East Alton | 0 | 381 |
| East Dubuque | East Dubuque | 0 | 0 |
| East Dundee | East Dundee | 236 | 158 |
| East Hazel Crest | East Hazel Crest | 0 | 0 |
| East Moline | East Moline | 393 | 5,008 |
| East Peoria | East Peoria | 214 | 4 |
| East St. Louis | IL American-East St Louis | 1,100 | 34,431 |
| Edinburg | Edinburg | 0 | 0 |
| Edwardsville | Edwardsville | 0 | 1,118 |
| Effingham | Effingham | 0 | 0 |
| El Paso | El Paso | 0 | 0 |
| Elburn | Elburn | 17 | 15 |
| Eldorado | Eldorado | 0 | 570 |
| Elgin | Elgin | 8,222 | 1,465 |
| Elk Grove | Elk Grove Village | 0 | 0 |
| Elmhurst | Elmhurst | 1,205 | 0 |
| Elmwood | Elmwood | 0 | 0 |
| Elmwood Park | Elmwood Park | 5,825 | 0 |
| Elwood | Elwood | 0 | 1,103 |
| Erie | Erie | 71 | 385 |
| Eureka | Eureka | 76 | 212 |
| Evanston | Evanston | 9,468 | 0 |
| Evergreen Park | Evergreen Park | 5,981 | 0 |
| Fairbury | Fairbury | 30 | 799 |
| Fairfield | Fairfield | 0 | 0 |
| Fairmont | IL American-East St Louis | 1,100 | 34,431 |
| Fairview Heights | O Fallon | 33 | 457 |
| Farmer | Farmer City | 58 | 1 |
| Farmington | IL American-Farmington | 10 | 425 |
| Fisher | IL American-Fisher | 8 | 92 |
| Flanagan | Flanagan | 0 | 79 |
| Flora | Flora | 196 | 36 |
| Flossmoor | Flossmoor | 373 | 199 |
| Ford Heights | Sauk Village | 0 | 0 |
| Forest Park | Forest Park | 2,548 | 0 |
| Forrest | Forrest | 113 | 381 |
| Forreston | Forreston | 0 | 0 |
| Forsyth | Forsyth | 0 | 0 |
| Fox Lake | Fox Lake | 0 | 0 |
| Fox River Grove | Fox River Grove | 563 | 0 |
| Frankfort | Frankfort | 0 | 0 |
| Franklin Park | Franklin Park | 2,345 | 2,724 |
| Freeburg | Freeburg | 21 | 0 |
| Freeport | Freeport | 0 | 901 |
| Fulton | Fulton | 63 | 425 |
| Galena | Galena | 131 | 219 |
| Galesburg | Galesburg | 0 | 0 |
| Galva | Galva | 18 | 0 |
| Gardner | Gardner | 0 | 0 |
| Geneseo | Geneseo | 314 | 2,967 |
| Geneva | Geneva | 533 | 89 |
| Genoa | Genoa | 175 | 18 |
| Georgetown | Georgetown | 0 | 1,380 |
| Germantown | Germantown | 0 | 0 |
| Germantown Hills | Caterpillar Trail PWD | 0 | 0 |
| Gibson | Gibson City | 1 | 681 |
| Gilberts | Gilberts | 0 | 0 |
| Gillespie | Gillespie | 0 | 0 |
| Gilman | Gilman | 52 | 454 |
| Girard | Girard | 3 | 309 |
| Glen Carbon | Glen Carbon | 0 | 65 |
| Glen Ellyn | Glen Ellyn | 585 | 239 |
| Glencoe | Glencoe | 528 | 24 |
| Glendale Heights | Glendale Heights | 0 | 0 |
| Glenview | Glenview | 427 | 1,391 |
| Glenwood | Glenwood | 0 | 0 |
| Godfrey | IL American-Alton | 514 | 7,995 |
| Goreville | Goreville | 0 | 0 |
| Grandview | Grandview | 1 | 107 |
| Granite | IL American-Granite City | 827 | 12,306 |
| Grant Park | Aqua Illinois-Kankakee | 2,206 | 4,304 |
| Granville | Granville | 0 | 0 |
| Grayslake | Grayslake | 175 | 5 |
| Grayville | Grayville | 491 | 0 |
| Green Oaks | Green Oaks | 0 | 0 |
| Greenfield | Greenfield | 0 | 0 |
| Greenup | Greenup | 107 | 0 |
| Greenville | Greenville | 0 | 0 |
| Gridley | Gridley | 0 | 0 |
| Griggsville | Griggsville | 0 | 391 |
| Gurnee | Gurnee | 0 | 0 |
| Hainesville | Hainesville | 0 | 0 |
| Hamilton | Hamilton | 79 | 389 |
| Hampshire | Hampshire | 23 | 23 |
| Hampton | Hampton | 0 | 0 |
| Hanna | IL American-Peoria | 11,442 | 24,303 |
| Hanover Park | Hanover Park | 0 | 0 |
| Harrisburg | Harrisburg | 0 | 1,975 |
| Harristown | Harristown | 0 | 0 |
| Hartford | Hartford | 0 | 299 |
| Harvard | Harvard | 1,305 | 718 |
| Harvey | Harvey | 190 | 8,009 |
| Harwood Heights | Harwood Heights | 206 | 5 |
| Havana | Havana | 844 | 371 |
| Hawthorn Woods | Aqua Illinois-Hawthorn Woods | 0 | 65 |
| Hazel Crest | Hazel Crest | 1,396 | 5 |
| Hebron | Hebron | 20 | 0 |
| Henry | Henry | 545 | 133 |
| Herrin | Herrin | 265 | 3,364 |
| Herscher | Herscher | 0 | 186 |
| Heyworth | Heyworth | 0 | 0 |
| Hickory Hills | Hickory Hills | 0 | 0 |
| Highland | Highland | 0 | 3,194 |
| Highland Park | Highland Park | 1,773 | 1 |
| Highwood | Highwood | 271 | 9 |
| Hillcrest | Hillcrest | 1 | 60 |
| Hillsboro | Ej Water Cooperative | 0 | 0 |
| Hillside | Hillside | 486 | 1,491 |
| Hinckley | Hinckley | 49 | 310 |
| Hinsdale | Hinsdale | 183 | 261 |
| Hodgkins | Hodgkins | 0 | 0 |
| Hoffman Estates | Hoffman Estates | 0 | 0 |
| Homer | Homer | 0 | 0 |
| Homer Glen | IL American-Homer Township | 0 | 0 |
| Hometown | Hometown | 0 | 0 |
| Homewood | Homewood | 3,759 | 593 |
| Hoopeston | Hoopeston | 0 | 0 |
| Hudson | Hudson | 0 | 0 |
| Huntley | Huntley | 14 | 1 |
| Ina | Ewing-Ina Water Commission | 0 | 0 |
| Indian Head Park | Indian Head Park | 0 | 0 |
| Inverness | Hoffman Estates | 0 | 0 |
| Island Lake | Island Lake | 0 | 0 |
| Itasca | Itasca | 0 | 0 |
| Jacksonville | Jacksonville | 3,916 | 1 |
| Jerome | Jerome | 0 | 0 |
| Jerseyville | IL American-Jerseyville | 36 | 1,760 |
| Johnsburg | IL American-Whispering Hills | 0 | 1,392 |
| Johnston | Johnston City | 51 | 1,163 |
| Joliet | Joliet | 307 | 6,188 |
| Jonesboro | Jonesboro | 0 | 0 |
| Justice | Justice-Willow Springs Water Commission | 0 | 0 |
| Kankakee | Aqua Illinois-Kankakee | 2,206 | 4,304 |
| Kenilworth | Kenilworth | 245 | 0 |
| Kewanee | Kewanee | 1,230 | 1 |
| Kildeer | Lake Zurich | 26 | 28 |
| Kincaid | Kincaid | 367 | 2 |
| Kingston | Kingston | 0 | 0 |
| Kirkland | Kirkland | 0 | 0 |
| Knoxville | Knoxville | 0 | 2 |
| La Grange | La Grange | 3,400 | 457 |
| La Grange Park | La Grange Park | 852 | 529 |
| La Harpe | Laharpe | 3 | 0 |
| Lacon | Lacon | 171 | 625 |
| Ladd | Ladd | 50 | 185 |
| Lake Barrington | Lake Barrington Shores Subdivsion | 0 | 0 |
| Lake Bluff | Lake Bluff | 109 | 2 |
| Lake Forest | Lake Forest | 250 | 31 |
| Lake in the Hills | Lake in the Hills | 0 | 0 |
| Lake Villa | Lake Villa | 0 | 2 |
| Lake Zurich | Lake Zurich | 26 | 28 |
| Lakemoor | Lakemoor | 0 | 0 |
| Lakewood | Lakewood | 0 | 0 |
| Lanark | Lanark | 168 | 18 |
| Lansing | Lansing | 5,188 | 56 |
| LaSalle | La Salle | 199 | 3,214 |
| Lawrenceville | Lawrenceville | 134 | 0 |
| Le Roy | Le Roy | 46 | 8 |
| Lebanon | Lebanon | 0 | 1,423 |
| Leland Grove | Springfield | 2,252 | 6,949 |
| Lemont | Lemont | 65 | 1,452 |
| Lena | Lena | 0 | 0 |
| Lewistown | Lewistown | 71 | 83 |
| Lexington | Lexington | 0 | 0 |
| Libertyville | Libertyville | 310 | 575 |
| Lily Lake | IL American-Ferson Creek | 0 | 378 |
| Limestone | Aqua Illinois-Kankakee | 2,206 | 4,304 |
| Lincoln | IL American-Lincoln | 134 | 2,455 |
| Lincolnshire | Lincolnshire | 0 | 0 |
| Lincolnwood | Lincolnwood | 1,097 | 0 |
| Lindenhurst | Lindenhurst | 0 | 439 |
| Lisle | Lisle | 25 | 1 |
| Litchfield | Litchfield | 1,056 | 0 |
| Lockport | Lockport | 44 | 8 |
| Lombard | Lombard | 2,212 | 0 |
| Long Creek | Long Creek Township PWS | 0 | 0 |
| Long Grove | Vernon Hills - Lake Co PW | 0 | 0 |
| Louisville | Louisville | 0 | 0 |
| Loves Park | Loves Park | 0 | 0 |
| Lovington | Lovington | 16 | 0 |
| Lynwood | Lynwood | 0 | 0 |
| Lyons | Lyons | 602 | 28 |
| Machesney Park | North Park PWD | 0 | 0 |
| Mackinaw | Mackinaw | 0 | 0 |
| Macomb | Macomb | 724 | 1,685 |
| Macon | Macon | 0 | 0 |
| Madison | IL American-Granite City | 827 | 12,306 |
| Mahomet | Mahomet | 0 | 0 |
| Malta | Malta | 0 | 0 |
| Manhattan | Manhattan | 0 | 0 |
| Manito | Manito | 0 | 0 |
| Manteno | Aqua Illinois-Kankakee | 2,206 | 4,304 |
| Maple Park | Maple Park | 0 | 257 |
| Marengo | Marengo | 37 | 914 |
| Marion | Marion | 0 | 0 |
| Marissa | Marissa | 0 | 0 |
| Markham | Markham | 1,239 | 149 |
| Maroa | Maroa | 0 | 0 |
| Marquette Heights | Marquette Heights | 0 | 0 |
| Marseilles | Marseilles | 56 | 697 |
| Marshall | Marshall | 184 | 0 |
| Martinsville | Martinsville | 0 | 0 |
| Maryville | Maryville | 0 | 0 |
| Mascoutah | Mascoutah | 5 | 0 |
| Mason | Mason City | 0 | 0 |
| Matteson | Matteson | 580 | 0 |
| Mattoon | Mattoon | 1,257 | 2,006 |
| Maywood | Maywood | 5,058 | 0 |
| McHenry | McHenry | 304 | 0 |
| McLeansboro | McLeansboro | 1 | 1,096 |
| Melrose Park | Melrose Park | 744 | 2,326 |
| Mendota | Mendota | 103 | 1,315 |
| Merrionette Park | Merrionette Park | 0 | 10 |
| Metamora | Metamora | 12 | 438 |
| Metropolis | Metropolis | 2,013 | 709 |
| Midlothian | Midlothian | 568 | 2,880 |
| Milan | Milan | 16 | 517 |
| Milford | Milford | 101 | 328 |
| Millstadt | Millstadt | 0 | 0 |
| Minier | Minier | 0 | 0 |
| Minonk | Minonk | 0 | 0 |
| Minooka | Minooka | 0 | 0 |
| Mokena | Mokena | 0 | 0 |
| Moline | Moline | 4,732 | 2,416 |
| Momence | Momence | 1 | 1,159 |
| Monee | Monee | 0 | 123 |
| Monmouth | Monmouth | 540 | 2,418 |
| Montgomery | Montgomery | 0 | 0 |
| Monticello | Monticello | 0 | 0 |
| Morris | Morris | 1,447 | 182 |
| Morrison | Morrison | 98 | 657 |
| Morton | Morton | 27 | 26 |
| Morton Grove | Morton Grove | 3,108 | 0 |
| Mount Carmel | Mount Carmel | 55 | 3,631 |
| Mount Carroll | Mount Carroll | 0 | 0 |
| Mount Morris | Mount Morris | 195 | 70 |
| Mount Olive | Mount Olive | 335 | 0 |
| Mount Prospect | Mount Prospect | 727 | 65 |
| Mount Pulaski | IL American-Mount Pulaski | 172 | 214 |
| Mount Sterling | Mount Sterling | 0 | 0 |
| Mount Vernon | Northeast Mount Vernon Water Company | 0 | 0 |
| Mount Zion | Mount Zion | 0 | 0 |
| Moweaqua | Moweaqua | 217 | 0 |
| Mundelein | Mundelein | 98 | 32 |
| Murphysboro | Murphysboro | 0 | 2,955 |
| Naperville | Naperville | 293 | 29 |
| Nashville | Nashville | 0 | 0 |
| Neoga | Neoga | 10 | 676 |
| New Athens | New Athens | 0 | 0 |
| New Baden | New Baden | 0 | 0 |
| New Berlin | New Berlin | 0 | 0 |
| New Lenox | New Lenox | 0 | 0 |
| Newton | Newton | 0 | 0 |
| Niles | Niles | 1,399 | 5,789 |
| Nokomis | Nokomis | 0 | 0 |
| Normal | Normal | 30 | 4 |
| Norridge | Norridge | 46 | 207 |
| Norris | Norris City | 0 | 0 |
| North Aurora | North Aurora | 225 | 357 |
| North Barrington | Lake Zurich | 26 | 28 |
| North Chicago | North Chicago | 849 | 4,804 |
| North Pekin | North Pekin | 0 | 0 |
| North Riverside | Riverside | 1,141 | 157 |
| North Utica | North Utica | 22 | 440 |
| Northbrook | Northbrook | 314 | 0 |
| Northfield | Northfield | 85 | 6 |
| Northlake | Northlake | 237 | 1,447 |
| O'Fallon | O Fallon | 33 | 457 |
| Oak Brook | Aqua Illinois-Oak Brook | 9 | 1,733 |
| Oak Forest | Oak Forest | 5 | 6,801 |
| Oak Lawn | Oak Lawn | 2,706 | 47 |
| Oak Park | Oak Park | 7,649 | 1,222 |
| Oakbrook Terrace | Oakbrook Terrace | 0 | 0 |
| Oakwood | IL American-Oakwood | 0 | 267 |
| Oakwood Hills | IL American-Killarney | 0 | 78 |
| Oblong | Oblong | 0 | 0 |
| Oglesby | Oglesby | 300 | 750 |
| Okawville | Okawville | 0 | 0 |
| Olney | Olney | 0 | 0 |
| Olympia Fields | Olympia Fields | 205 | 269 |
| Onarga | Onarga | 19 | 0 |
| Oquawka | Oquawka | 0 | 0 |
| Oregon | Oregon | 72 | 103 |
| Orion | Orion | 5 | 0 |
| Orland Hills | IL American-Fernway | 0 | 0 |
| Orland Park | Orland Park | 18 | 0 |
| Oswego | Oswego | 0 | 0 |
| Ottawa | Ottawa | 59 | 1,019 |
| Palatine | Palatine | 541 | 7 |
| Palos Heights | Palos Heights | 0 | 0 |
| Palos Hills | Palos Hills | 0 | 0 |
| Palos Park | South Palos TWSP Sanitary Dist | 0 | 0 |
| Pana | Pana | 1,491 | 4 |
| Paris | Paris | 0 | 3,532 |
| Park | Park City MHP | 0 | 0 |
| Park Forest | Park Forest | 0 | 0 |
| Park Ridge | Park Ridge | 3,121 | 5,530 |
| Pawnee | Pawnee | 0 | 0 |
| Paxton | Paxton | 114 | 1,027 |
| Pecatonica | Pecatonica | 0 | 0 |
| Pekin | IL American-Pekin | 2,520 | 5,668 |
| Peoria | IL American-Peoria | 11,442 | 24,303 |
| Peoria Heights | Peoria Heights | 411 | 1,375 |
| Peotone | Aqua Illinois-Peotone | 37 | 612 |
| Peru | Peru | 178 | 2,784 |
| Petersburg | Petersburg | 41 | 97 |
| Philo | Aqua Illinois-Philo | 47 | 299 |
| Phoenix | Phoenix | 322 | 338 |
| Pinckneyville | Pinckneyville | 0 | 1,782 |
| Pingree Grove | Pingree Grove | 0 | 0 |
| Pittsfield | Pittsfield | 0 | 1,933 |
| Plainfield | Plainfield | 128 | 21 |
| Plano | Plano | 0 | 0 |
| Polo | Polo | 0 | 0 |
| Pontiac | IL American-Pontiac | 683 | 1,663 |
| Pontoon Beach | IL American-Granite City | 827 | 12,306 |
| Poplar Grove | Poplar Grove | 0 | 0 |
| Port Barrington | Island Lake | 0 | 0 |
| Port Byron | Port Byron | 72 | 7 |
| Posen | Posen | 1,122 | 474 |
| Prairie Grove | Crystal Lake | 0 | 1,422 |
| Princeton | Princeton | 250 | 1,189 |
| Princeville | Princeville | 12 | 10 |
| Prophetstown | Prophetstown | 0 | 965 |
| Prospect Heights | Prospect Heights | 0 | 0 |
| Quincy | Quincy | 5,256 | 70 |
| Rantoul | Rantoul | 14 | 16 |
| Red Bud | Red Bud | 46 | 0 |
| Richmond | Richmond | 93 | 1 |
| Richton Park | Richton Park | 262 | 111 |
| River Forest | River Grove | 1,845 | 13 |
| River Grove | River Grove | 1,845 | 13 |
| Riverdale | Riverdale | 241 | 2,755 |
| Riverside | North Riverside | 219 | 2,119 |
| Riverton | Riverton | 0 | 0 |
| Riverwoods | Riverwoods | 0 | 0 |
| Roanoke | Roanoke | 2 | 0 |
| Robbins | Robbins | 1,332 | 293 |
| Robinson | Robinson-Palestine Water Commission | 0 | 0 |
| Rochelle | Rochelle | 272 | 0 |
| Rochester | Rochester | 0 | 0 |
| Rock Falls | Rock Falls | 364 | 0 |
| Rock Island | Rock Island | 207 | 9,258 |
| Rockdale | Rockdale | 14 | 13 |
| Rockford | Rockford | 15,328 | 28,598 |
| Rockton | Rockton | 144 | 0 |
| Rolling Meadows | Rolling Meadows | 0 | 143 |
| Romeoville | Romeoville | 0 | 0 |
| Roodhouse | Roodhouse | 0 | 0 |
| Roscoe | North Park PWD | 0 | 0 |
| Roselle | Roselle | 185 | 44 |
| Rosemont | Rosemont | 0 | 0 |
| Rossville | Rossville | 0 | 0 |
| Round Lake | Round Lake | 14 | 19 |
| Round Lake Beach | Round Lake Beach | 0 | 0 |
| Round Lake Heights | Round Lake Heights | 0 | 0 |
| Round Lake Park | Round Lake Park | 0 | 0 |
| Roxana | Roxana | 378 | 0 |
| Royalton | Royalton | 0 | 701 |
| Rushville | Rushville | 116 | 1,520 |
| Salem | Salem | 0 | 0 |
| Sandoval | Sandoval | 0 | 0 |
| Sandwich | Sandwich | 206 | 40 |
| Sauk | Sauk Village | 0 | 0 |
| Savanna | Savanna | 190 | 171 |
| Savoy | IL American-Champaign | 1,728 | 14,962 |
| Schaumburg | Schaumburg | 0 | 0 |
| Schiller Park | Schiller Park | 0 | 0 |
| Seneca | Seneca | 0 | 0 |
| Sesser | Sesser | 0 | 0 |
| Shelbyville | Shelbyville | 405 | 57 |
| Sheridan | Sheridan Correctional Center | 0 | 0 |
| Sherman | Williamsville | 0 | 0 |
| Shiloh | IL American-East St Louis | 1,100 | 34,431 |
| Shorewood | Shorewood | 0 | 0 |
| Sidney | IL American-Champaign | 1,728 | 14,962 |
| Silvis | Silvis | 484 | 0 |
| Skokie | Skokie | 6,349 | 8,910 |
| Sleepy Hollow | Sleepy Hollow | 0 | 0 |
| Smithton | Smithton | 0 | 0 |
| Somonauk | Somonauk | 0 | 0 |
| South Barrington | Hoffman Estates | 0 | 0 |
| South Beloit | IL American-South Beloit | 166 | 2,286 |
| South Chicago Heights | South Chicago Heights | 765 | 150 |
| South Elgin | South Elgin | 0 | 5 |
| South Holland | South Holland | 1,310 | 271 |
| South Jacksonville | South Jacksonville | 830 | 0 |
| South Roxana | South Roxana | 9 | 285 |
| Southern View | Springfield | 2,252 | 6,949 |
| Sparta | Sparta | 0 | 0 |
| Spring Grove | IL American-Whispering Hills | 0 | 1,392 |
| Spring Valley | Spring Valley | 1 | 0 |
| Springfield | Springfield | 2,252 | 6,949 |
| St. Anne | St Anne | 26 | 91 |
| St. Charles | St Charles | 926 | 3,703 |
| St. Elmo | St Elmo | 0 | 0 |
| St. Jacob | St Jacob | 0 | 814 |
| St. Joseph | IL American-Champaign | 1,728 | 14,962 |
| Staunton | Staunton | 0 | 0 |
| Steeleville | Steeleville | 0 | 0 |
| Steger | Steger | 834 | 0 |
| Sterling | IL American-Sterling | 360 | 2,393 |
| Stickney | Stickney | 136 | 1,657 |
| Stillman Valley | Stillman Valley | 0 | 0 |
| Stockton | Stockton | 0 | 0 |
| Stone Park | Stone Park | 71 | 0 |
| Streamwood | Streamwood | 0 | 0 |
| Streator | IL American-Streator | 162 | 6,646 |
| Sugar Grove | Sugar Grove | 0 | 0 |
| Sullivan | Sullivan | 0 | 0 |
| Summit | Summit | 1,491 | 209 |
| Swansea | IL American-East St Louis | 1,100 | 34,431 |
| Sycamore | Sycamore | 5 | 0 |
| Taylorville | Taylorville | 241 | 647 |
| Teutopolis | Teutopolis | 0 | 0 |
| Third Lake | Lake Villa | 0 | 2 |
| Thomasboro | Thomasboro | 0 | 0 |
| Thomson | Thomson | 55 | 137 |
| Thornton | Thornton | 119 | 889 |
| Tilton | Aqua Illinois-Vermilion County | 410 | 15,402 |
| Tinley Park | Tinley Park | 0 | 0 |
| Toledo | Toledo | 0 | 0 |
| Tolono | IL American-Tolono | 2 | 993 |
| Toluca | Toluca | 0 | 0 |
| Toulon | Toulon | 229 | 48 |
| Tower Lakes | Tower Lakes | 0 | 0 |
| Tremont | Tremont | 0 | 0 |
| Trenton | Trenton | 0 | 0 |
| Troy | Troy | 0 | 0 |
| Tuscola | Tuscola | 0 | 0 |
| University Park | Aqua Illinois-University Park | 12 | 982 |
| Urbana | IL American-Champaign | 1,728 | 14,962 |
| Valmeyer | Fountain Water District | 0 | 0 |
| Vandalia | Vandalia | 178 | 2,286 |
| Venice | IL American-Granite City | 827 | 12,306 |
| Vernon Hills | Vernon Hills - Lake Co PW | 0 | 0 |
| Vienna | Vienna | 0 | 0 |
| Villa Grove | IL American-Villa Grove | 42 | 214 |
| Villa Park | Villa Park | 205 | 6,063 |
| Virden | Virden | 0 | 0 |
| Virginia | Virginia | 0 | 0 |
| Volo | Volo | 0 | 0 |
| Wadsworth | Waukegan | 7,322 | 686 |
| Walnut | Walnut | 86 | 0 |
| Warren | Warren | 0 | 0 |
| Warrensburg | Warrensburg | 17 | 336 |
| Warrenville | Warrenville | 0 | 0 |
| Warsaw | Warsaw | 0 | 0 |
| Washburn | Washburn | 0 | 0 |
| Washington | IL American-Washington Estates | 0 | 0 |
| Washington Park | IL American-East St Louis | 1,100 | 34,431 |
| Waterloo | Waterloo | 83 | 0 |
| Waterman | Waterman | 0 | 0 |
| Watseka | Watseka | 0 | 0 |
| Wauconda | Wauconda | 167 | 1,567 |
| Waukegan | Waukegan | 7,322 | 686 |
| Waverly | Waverly | 0 | 0 |
| Wayne | St Charles | 926 | 3,703 |
| West Chicago | West Chicago | 780 | 0 |
| West Dundee | West Dundee | 426 | 0 |
| West Frankfort | West Frankfort | 0 | 0 |
| West Peoria | Pleasant Valley PWD | 0 | 0 |
| Westchester | Westchester | 3,399 | 26 |
| Western Springs | Western Springs | 414 | 53 |
| Westmont | Westmont | 245 | 184 |
| Westville | Westville | 0 | 0 |
| Wheaton | Wheaton | 180 | 525 |
| Wheeling | Wheeling | 0 | 0 |
| White Hall | White Hall | 85 | 0 |
| Williamsville | Williamsville | 0 | 0 |
| Willow Springs | Burr Ridge | 0 | 0 |
| Willowbrook | Willowbrook | 0 | 1,516 |
| Wilmette | Wilmette | 2,125 | 219 |
| Wilmington | Wilmington | 13 | 1,887 |
| Winchester | Winchester | 0 | 0 |
| Windsor | Windsor | 0 | 0 |
| Winfield | Winfield | 0 | 0 |
| Winnebago | Winnebago | 0 | 0 |
| Winnetka | Winnetka | 1,083 | 0 |
| Winthrop Harbor | Winthrop Harbor | 13 | 804 |
| Wonder Lake | Wonder Lake (Niu) | 0 | 0 |
| Wood Dale | Wood Dale | 0 | 0 |
| Wood River | Bethalto | 0 | 0 |
| Woodridge | Woodridge | 0 | 0 |
| Woodstock | Woodstock | 1,023 | 565 |
| Worden | Worden | 0 | 246 |
| Worth | Worth | 0 | 6 |
| Wyoming | Wyoming | 0 | 0 |
| Yorkville | Yorkville | 0 | 0 |
| Zeigler | Zeigler | 2 | 682 |
| Zion | Zion | 41 | 0 |