| Locality | Post Code |
|---|---|
| Highwood, Lake | 60040 |
| Indian Creek, Lake | 60061 |
| Ingleside, Lake | 60041 |
| Island Lake, Lake | 60042 |
| Kildeer, Lake | 60010, 60047 |
| Knollwood, Lake | 60044 |
| Lake Barrington, Lake | 60010, 60084 |
| Lake Barrington Shores, Lake | 60010 |
| Lake Bluff, Lake | 60044 |
| Lake Forest, Lake | 60045 |
| Lake Villa, Lake | 60046 |
| Lake Zurich, Lake | 60047 |
| Libertyville, Lake | 60048 |
| Lincolnshire, Lake | 60069 |
| Lincolnshire Woods, Lake | 60045 |
| Lindenhurst, Lake | 60046 |
| Long Grove, Lake | 60047, 60060 |
| Long Lake, Lake | 60041 |
| Mettawa, Lake | 60045, 60048 |
| Mundelein, Lake | 60060 |
| North Barrington, Lake | 60010 |
| North Chicago, Lake | 60064 |
| Old Mill Creek, Lake | 60083 |
| Park, Lake | 60085 |
| Park City, Lake | 60085 |
| Port Barrington, Lake | 60010 |