| Locality | Post Code |
|---|---|
| Seamill, North Ayrshire | KA23 |
| Shannochie, North Ayrshire | KA27 |
| Shiskine, North Ayrshire | KA27 |
| Skelmorlie, North Ayrshire | PA17 |
| Sliddery, North Ayrshire | KA27 |
| South Newmoor Industrial Estate, North Ayrshire | KA11 |
| Springside, North Ayrshire | KA11 |
| Stanecastle, North Ayrshire | KA11 |
| Stevenston, North Ayrshire | KA20 |
| Torbeg, North Ayrshire | KA27 8HE |
| West Byrehill Industrial Estate, North Ayrshire | KA13 6HN |
| West Kilbride, North Ayrshire | KA23 |
| Whiting Bay, North Ayrshire | KA27 |
| Willowyard Industrial Estate, North Ayrshire | KA15 1LN, KA15 1LY, KA15 … |