From Hoober, South Yorkshire to all cities in Somerset starting with letter I
- Icelton, South Yorkshire
- Ilchester, South Yorkshire
- Ilchester Mead, South Yorkshire
- Ilford, South Yorkshire
- Ilminster, South Yorkshire
- Ilton, South Yorkshire
- Inglesbatch, South Yorkshire
- Innox Hill, South Yorkshire
- Isle Abbotts, South Yorkshire
- Isle Brewers, South Yorkshire
- Iwood, South Yorkshire