| Postcode | Coverage Area |
| CH1 | Blacon,Chester,Higher Ferry,Capenhurst,Backford |
| CH2 | Backford,Chester,Elton,Hoole,Ince,Mickle Trafford,Moston,Newton By Chester,Upton By Chester |
| CH3 | Boughton,Chester,Huntington,Mouldsworth,Tarvin,Tattenhall,Farndon,Waverton,Saighton,Upton By Chester |
| CH4 | Chester,Curzon Park,Handbridge,Lache,Pulford,Penyffordd,Broughton,Saltney |
| CH33 | Po Boxes |
| CH34 | Po Boxes |
| CH64 | Little Neston,Ness,Neston,Parkgate,Puddington,Willaston, |
| CH65 | Ellesmere Port,Great Sutton,Whitby,Wolverham |
| CH66 | Childer Thornton,Ellesmere Port,Great Sutton,Hooton,Ledsham,Little Sutton,Overpool,Whitby |
| CW6 | Tarporley, Winsford Rural West |
| CW7 | Winsford(Town), Wharton, Over, Glebe Green,Darnhall, Stanthorne, Bostock, Wimboldsley |
| CW8 | Northwich,Hartford,Weaverham, Castle, Greenbank |
| CW9 | Northwich, Wincham, Lostock Gralam,Rudheath, Leftwich,Davenham, Kingsmead,Antrobus |
| SY14 | Malpas,Tilston,No Mans Heath,Bickley,Hampton,Shocklach,Bulkeley,Bickerton,Cuddington Heath,Cholmondeley,Threapwood,Barton,Duckington |
| WA4 | Warrington,Latchford,Stockton Heath,Appleton,Grappenhall,Daresbury,Moore,Walton,Preston On The Hill |
| WA6 | Frodsham,Helsby |