| Locality | Post Code |
|---|---|
| Irvine, North Ayrshire | KA11, KA12 |
| Irvine Industrial Estate, North Ayrshire | KA12 |
| Kilbirnie, North Ayrshire | KA25 |
| Kildonan, North Ayrshire | KA27 |
| Kilmory, North Ayrshire | KA27 |
| Kilwinning, North Ayrshire | KA13 |
| King's Cross, North Ayrshire | KA27 |
| Lamlash, North Ayrshire | KA27 |
| Largs, North Ayrshire | KA30 |
| Lawthorn, North Ayrshire | KA11 |
| Lochranza, North Ayrshire | KA27 |
| Machrie, North Ayrshire | KA27 |
| Meadowhead Industrial Estate, North Ayrshire | KA11 5AU |
| Meigle, North Ayrshire | PA17 5HA |
| Millport, North Ayrshire | KA28 |
| North Newmoor, North Ayrshire | KA11 |
| North Newmoor Industrial Estate, North Ayrshire | KA11 4JU |
| Old Perceton, North Ayrshire | KA11 |
| Oldhall West Industrial Estate, North Ayrshire | KA11 5DB, KA11 5DG |
| Perceton, North Ayrshire | KA11 |
| Pirnmill, North Ayrshire | KA27 |
| Portencross, North Ayrshire | KA23 |
| Riverside Business Park, North Ayrshire | KA11 |
| Saint Phillans, North Ayrshire | PA17 5HD |
| Saltcoats, North Ayrshire | KA21 |
| Sannox, North Ayrshire | KA27 8JD |