| SL0 |
Iver |
Iver, Iver Heath, Richings Park, Thorney |
345 |
| SL1 |
Slough |
Burnham, Littleworth, Salt Hill, Slough, Upton, Cippenham |
1,648 |
| SL2 |
Slough |
Farnham Common, Farnham Royal, Hedgerley, Stoke Poges |
1,132 |
| SL3 |
Slough |
Colnbrook, Datchet, Fulmer, George Green, Horton, Langley, Poyle |
1,085 |
| SL4 |
Windsor |
Boveney, Clewer, Cranbourne, Dorney, Eton, Eton Wick, Fifield, Oakley Green, Old Windsor, Spital, Windsor, Berkshire, Winkfield, Woodside |
1,376 |
| SL5 |
Ascot |
Ascot, Burleigh, Cheapside, North Ascot, South Ascot, Sunningdale, Sunninghill |
890 |
| SL6 |
Maidenhead |
Bray, Bray Wick, Burchett's Green, Cookham, Cookham Dean, Cookham Rise, Furze Platt, Hitcham, Holyport, Hurley, Hurley Bottom, Littlewick Green, Maidenhead, Paley Street, Pinkneys Green, Stud Green, Taplow, Touchen End, White Waltham, Woodlands Park |
2,307 |
| SL7 |
Marlow |
Bisham, Little Marlow, Lower Woodend, Buckinghamshire, Marlow, Marlow Bottom, Medmenham |
700 |
| SL8 |
Bourne End |
Bourne End, Well End, Buckinghamshire |
265 |
| SL9 |
Gerrards Cross |
Chalfont Common, Chalfont St Peter, Gerrards Cross, Horn Hill |
887 |
| SL60 |
Maidenhead |
Non-geographic |
33 |
| SL95 |
Slough |
Non-geographic |
24 |
