| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Walgherton | CW5 |
| Postal/ZIP Codes in Walker Barn | SK11 0AW |
| Postal/ZIP Codes in Wall Hill | CW12 4TB, CW12 4TE |
| Postal/ZIP Codes in Wardle | CW5 |
| Postal/ZIP Codes in Warmingham | CW1, CW10, CW11 |
| Postal/ZIP Codes in Weston | CW2 |
| Postal/ZIP Codes in Wettenhall | CW7 |
| Postal/ZIP Codes in Wheelock | CW11 |
| Postal/ZIP Codes in Whiteley Green | SK10 5SH, SK10 5SJ |
| Postal/ZIP Codes in Wildboarclough | SK11 |
| Postal/ZIP Codes in Wilkesley | SY13 4BA, SY13 4BB, SY13 … |
| Postal/ZIP Codes in Willaston | CW5 |
| Postal/ZIP Codes in Wilmslow | SK9 |
| Postal/ZIP Codes in Wincle | SK11 |
| Postal/ZIP Codes in Winterley | CW11 |
| Postal/ZIP Codes in Wirswall | SY13 |
| Postal/ZIP Codes in Wistaston | CW2, CW5 |
| Postal/ZIP Codes in Woolstanwood | CW1, CW2 |