Lake Killarney USA local utility information & local organizations
| Commonwealth Edison | 800-334-7661 |
| Nicor Gas | 815-578-8113 |
| Nicor Gas 24 hour customer service | 888-642-6748 |
| Comcast Cable | 866-594-1234 |
| AT&T | 888-746-4343 |
| AT&T Service Center | 800-346-3988 |
| Lake Killarney Water Company | 800-831-2359 |
| Groot Recycling and Waste | 800-244-1977 |
local organization links
| American Red Cross of Greater Chicago GreaterChicago |
| Cary-Grove Jaycees |
| Cary Chamber of Commerce |
| University of Illinois Extension, McHenry County Office |
| McHenry County Genealogical Society |
