Place
- Highwood, Illinois1
- Hillside, Illinois1
- Hinsdale, Illinois1
- Hodgkins, Illinois1
- Hoffman Estates, Illinois1
- Holiday Hills, Illinois1
- Homer Glen, Illinois1
- Hometown, Illinois1
- Homewood, Illinois1
- Illinois1
- Indian Creek, Illinois1
- Indian Head Park, Illinois1
- Ingalls Park, Illinois1
- Inverness, Illinois1
- Island Lake, Illinois1
- Itasca, Illinois1
- Justice, Illinois1
- Kane County, Illinois1
- Kenilworth, Illinois1
- Kildeer, Illinois1