| DuPage County | DuPage County Sheriff | 41.85435 | -88.08469 | 13 |
| DuPage County | DuPage Interoperability | 41.85428 | -88.08469 | 13 |
| Amateur Radio | Public Safety | 41.85367 | -88.07877 | 13 |
| DuPage County | DuPage County | 41.85428 | -88.0846 | 13 |
| DuPage County | DuPage County Office of Homeland Security and Emergency Management (OHSEM) | 41.85428 | -88.08469 | 13 |
| DuPage County | Forest Preserve District of DuPage County | 41.85428 | -88.08469 | 13 |
| Amateur Radio | Repeaters & Simplex | 41.84753 | -88.07877 | 13 |
| Consolidated Dispatch Centers | Addison Consolidated Dispatch Center (ACDC) | 41.87886 | -87.92582 | 10 |
| Consolidated Dispatch Centers | DuPage Public Safety Communications (DU-COMM) | 41.85307 | -88.08487 | 13 |
| EMS | Edward Ambulance Services | 41.76084 | -88.15105 | 8 |
| EMS | Superior Ambulance Service (Elmhurst) | 41.91888 | -87.95191 | 60 |
| EMS | Hospitals | 41.85307 | -88.08487 | 13 |
| Townships | Townships | 41.85428 | -88.08452 | 13 |
| Municipalities and Districts | Addison | 41.92942 | -88.01551 | 2.5 |
| Municipalities and Districts | Aurora | 41.75505 | -88.31755 | 4 |
| Municipalities and Districts | Bartlett | 41.975 | -88.20717 | 3 |
| Municipalities and Districts | Bensenville | 41.96099 | -87.93955 | 2.25 |
| Municipalities and Districts | Bloomingdale | 41.94749 | -88.09289 | 2.5 |
| Municipalities and Districts | Bloomingdale Fire Protection District | 41.94749 | -88.09289 | 5 |
| Municipalities and Districts | Bolingbrook | 41.68984 | -88.11756 | 4.5 |
| Municipalities and Districts | Burr Ridge | 41.74913 | -87.92045 | 2.25 |
| Municipalities and Districts | Carol Stream | 41.91253 | -88.13479 | 2.5 |
| Municipalities and Districts | Clarendon Hills | 41.79564 | -87.95677 | 1.2 |
| Municipalities and Districts | Darien | 41.75198 | -87.97395 | 1.5 |
| Municipalities and Districts | Darien-Woodridge Fire Protection District | 41.75031 | -88.02143 | 5 |
| Municipalities and Districts | Downers Grove | 41.79128 | -88.01864 | 3 |
| Municipalities and Districts | Elmhurst | 41.89713 | -87.94483 | 2.5 |
| Municipalities and Districts | Fox River and Countryside Fire Protection District | 41.95609 | -88.28347 | 3 |
| Municipalities and Districts | Glen Ellyn | 41.86413 | -88.05915 | 2.5 |
| Municipalities and Districts | Glenbard Wastewater Authority | 41.86397 | -88.03916 | 3.2 |
| Municipalities and Districts | Glendale Heights | 41.91758 | -88.07484 | 1.55 |
| Municipalities and Districts | Glenside Fire Protection District (Glendale Heights) | 41.91031 | -88.07174 | 2 |
| Municipalities and Districts | Hanover Park | 41.97793 | -88.14335 | 2.85 |
| Municipalities and Districts | Hinsdale | 41.80163 | -87.92823 | 1.75 |
| Municipalities and Districts | Itasca | 41.9742 | -88.01965 | 1.75 |
| Municipalities and Districts | Lemont Fire Protection District | 41.85307 | -88.08487 | 13 |
| Municipalities and Districts | Lisle | 41.7844 | -88.09022 | 2.45 |
| Municipalities and Districts | Lisle-Woodridge Fire Protection District | 41.78104 | -88.08014 | 5 |
| Municipalities and Districts | Lombard | 41.88003 | -88.00784 | 3 |
| Municipalities and Districts | Naperville | 41.74769 | -88.16719 | 5.25 |
| Municipalities and Districts | Oak Brook | 41.83998 | -87.95813 | 1.95 |
| Municipalities and Districts | Oakbrook Terrace | 41.85619 | -87.9727 | 1.2 |
| Municipalities and Districts | Pleasantview Fire Protection District | 41.77631 | -87.92032 | 1.25 |
| Municipalities and Districts | Roselle | 41.97959 | -88.08576 | 2 |
| Municipalities and Districts | Tri-State Fire Protection District (Darien, Willowbrook) | 41.76261 | -87.99088 | 10 |
| Municipalities and Districts | Villa Park | 41.88599 | -87.98062 | 2 |
| Municipalities and Districts | Warrenville | 41.86614 | -88.10701 | 25 |
| Municipalities and Districts | West Chicago | 41.88475 | -88.20396 | 3 |
| Municipalities and Districts | Westmont | 41.79586 | -87.97562 | 2.25 |
| Municipalities and Districts | Wheaton | 41.86614 | -88.10701 | 3 |
| Municipalities and Districts | Willowbrook | 41.45781 | -87.53643 | 2 |
| Municipalities and Districts | Winfield | 41.8617 | -88.1609 | 1.5 |
| Municipalities and Districts | Wood Dale | 41.96336 | -87.97896 | 1.5 |
| Municipalities and Districts | Woodridge | 41.75287 | -88.04306 | 4 |
| Municipalities and Districts | York Center Fire Protection District | 41.85697 | -87.98784 | 1.5 |
| Schools - Public | Addison School District #4 | 41.9294 | -88.0158 | 2.5 |
| Schools - Public | Bartlett High School | 41.95016 | -88.19211 | 3 |
| Schools - Public | Bensenville Elementary School District 2 | 41.96459 | -87.94833 | 2.5 |
| Schools - Public | Bloomingdale School District 13 | 41.95542 | -88.07424 | 2 |
| Schools - Public | Burr Ridge Community Consolidated School District 180 | 41.70938 | -87.95893 | 2.3 |
| Schools - Public | Butler School District 53 (Oak Brook) | 41.8325 | -87.95082 | 1.85 |
| Schools - Public | Cass School District 63 | 41.75198 | -87.97395 | 3 |
| Schools - Public | Center Cass School District 66 (Downers Grove, Darien) | 41.73741 | -88.00616 | 1.4 |
| Schools - Public | Community Consolidated School District 181 (Hinsdale / Clarendon Hills) | 41.79624 | -87.93666 | 2.3 |
| Schools - Public | Community Consolidated School District 89 (Glen Ellyn, Wheaton) | 41.84085 | -88.05923 | 2.09 |
| Schools - Public | Community High School District 99 (Downers Grove) | 41.7798 | -88.03204 | 5.3 |
| Schools - Public | Community School District 201 (Westmont) | 41.79552 | -87.97828 | 1.5 |
| Schools - Public | Consolidated Community School District 93 (Bloomingdale, Carol Stream and Hanover Park) | 41.95895 | -88.07508 | 2.25 |
| Schools Transportation Companies | Cook Illinois Corporation | 41.93811 | -88.12206 | 10 |
| Schools Transportation Companies | Cottage Hill Operating Company (Villa Park) | 41.91687 | -87.98978 | 6 |
| Schools - Public | Darien School District 61 | 41.75522 | -87.9737 | 1.8 |
| Schools - Public | Downers Grove School District 58 | 41.79854 | -88.01429 | 3.8 |
| Schools - Public | DuPage High School Distrct 88 (Addison, Villa Park) | 41.89793 | -87.9885 | 4.52 |
| Schools - Public | Elmhurst Community Unit School District 205 | 41.89972 | -87.94178 | 2.5 |
| Schools - Public | Fenton High School District 100 (Bensenville) | 41.96416 | -87.95782 | 2.8 |
| Schools Transportation Companies | First Student (Multiple Locations) | 41.86614 | -88.10701 | 15 |
| Schools - Public | Glen Ellyn School District 41 | 41.88311 | -88.06245 | 2.1 |
| Schools - Public | Glenbard Township High School District 87 | 41.89129 | -88.08133 | 6.7 |
| Schools - Public | Gower School District 62 (Willowbrook/Burr Ridge) | 41.75354 | -87.93748 | 2 |
| Schools - Public | Hinsdale Township High School District 86 (Hinsdale/Darien) | 41.77433 | -87.94419 | 5.5 |
| Schools Transportation Companies | Hopewell Transportation | 41.85307 | -88.08487 | 13 |
| Schools Transportation Companies | Illinois Central School Bus | 41.91841 | -88.12003 | 10 |
| Schools - Public | Indian Prairie School District 204 (Aurora / Naperville) | 41.77377 | -88.20527 | 4.5 |
| Schools - Public | Itasca School District 10 | 41.9752 | -88.00729 | 1.5 |
| Schools - Public | Keeneyville School District 20 (Roselle / Hanover Park) | 41.9654 | -88.1013 | 2 |
| Schools - Public | Lake Park High School District 108 (Roselle) | 41.96785 | -88.0709 | 4.1 |
| Schools - Public | Lisle CUSD 202 | 41.80114 | -88.07479 | 2 |
| Schools - Public | Lombard School District 44 | 41.86834 | -88.02323 | 2.8 |
| Schools - Public | Maercker School District 60 (Clarendon Hills) | 41.77761 | -87.9626 | 1.6 |
| Schools - Public | Marquardt School District 15 (Bloomingdale/Glendale Heights) | 41.92677 | -88.06206 | 2.25 |
| Schools - Public | Medinah School District 11 (Medinah, Roselle) | 41.97713 | -88.05148 | 1.5 |
| Schools - Public | Naperville Community Unit School District 203 | 41.7652 | -88.12111 | 4.1 |
| Schools - Public | Queen Bee School District 16 (Glendale Heights) | 41.91767 | -88.07528 | 1.6 |
| Schools - Public | Roselle School District 12 | 41.97864 | -88.08278 | 1.25 |
| Schools - Public | Salt Creek School District 48 (Villa Park/Elmhurst/Oak Brook/Oakbrook Terrace) | 41.86081 | -87.95828 | 1.3 |
| Schools - Public | School District 45 (Villa Park, Lombard) | 41.87261 | -87.98252 | 2.6 |
| Schools - Public | School District U-46 - Bartlett High School | 41.95024 | -88.1921 | 1 |
| Schools Transportation Companies | Septran | 41.86454 | -88.11335 | 12 |
| Schools - Public | Technology Center of DuPage (Addison) | 41.92538 | -88.04059 | 1 |
| Schools - Public | West Chicago Community High School District 94 | 41.88218 | -88.20415 | 4.1 |
| Schools - Public | West Chicago Elementary School District 33 | 41.88218 | -88.20415 | 4.1 |
| Schools Transportation Companies | Westway Coach / RichLee Vans (Carol Stream) | 41.93958 | -88.13262 | 10 |
| Schools - Public | Wheaton-Warrenville Community Unit School District 200 | 41.85057 | -88.14849 | 4.6 |
| Schools - Public | Wood Dale School District 7 | 41.97088 | -87.97949 | 1.85 |
| Schools - Public | Woodridge School District 68 | 41.75568 | -88.05746 | 3 |
| Schools - Private / Parochial | Avery Coonley School (Downers Grove) | 41.78875 | -88.02001 | 1 |
| Schools - Private / Parochial | Benet Academy (Lisle) | 41.78293 | -88.09424 | 1.5 |
| Schools - Private / Parochial | IC Catholic Prep (Elmhurst) | 41.89543 | -87.94172 | 10 |
| Schools - Private / Parochial | Islamic Foundation School (Villa Park) | 41.86761 | -87.98582 | 2 |
| Schools - Private / Parochial | Montini Catholic High School (Lombard) | 41.85406 | -88.00003 | 3 |
| Schools - Private / Parochial | Prairie School of DuPage (Wheaton) | 41.88676 | -88.10866 | 2 |
| Schools - Private / Parochial | Saint Isaac Jogues School (Hinsdale) | 41.79357 | -87.93429 | 1 |
| Schools - Private / Parochial | Soaring Eagle Academy (Lombard) | 41.869 | -88.03537 | 0.25 |
| Schools - Private / Parochial | St. Francis High School (Wheaton) | 41.85679 | -88.14033 | 1 |
| Schools - Private / Parochial | St. Michael Parish School (Wheaton) | 41.86255 | -88.11078 | 2 |
| Schools - Private / Parochial | St. Raphael School (Naperville) | 41.75057 | -88.14759 | 1 |
| Schools - Private / Parochial | Timothy Christian School (Elmhurst) | 41.867 | -87.943 | 0.5 |
| Colleges and Universities | Benedictine University (Lisle) | 41.779 | -88.096 | 0.5 |
| Colleges and Universities | College of DuPage (Glen Ellyn) | 41.84 | -88.073 | 1 |
| Colleges and Universities | Elmhurst University | 41.89687 | -87.94672 | 2 |
| Colleges and Universities | Illinois College of Emergency Physicians (Downers Grove) | 41.80892 | -88.01117 | 1 |
| Colleges and Universities | Illinois Institute of Technology (Wheaton) | 41.86614 | -88.10701 | 1 |
| Colleges and Universities | Midwestern University (Downers Grove) | 41.82688 | -87.99908 | 0.5 |
| Colleges and Universities | National University of Health Sciences (Lombard) | 41.86173 | -88.01256 | 1 |
| Colleges and Universities | North Central College (Naperville) | 41.76942 | -88.1443 | 1 |
| Colleges and Universities | Universal Technical Institute (Lisle) | 41.8076 | -88.10356 | 1 |
| Colleges and Universities | Wheaton College | 41.86865 | -88.09746 | 1 |
| Public Transportation | Pace Call-n-Ride, Paratransit Buses | 41.85195 | -88.08578 | 13 |
| Illinois State | Illinois Youth Center - Warrenville [K-??] (*) | 41.85307 | -88.08487 | 13 |
