| Locality | Post Code |
|---|---|
| Mannal, Argyll and Bute | PA77 6UB |
| Middleton, Argyll and Bute | PA77 6XH |
| Millhouse, Argyll and Bute | PA21 |
| Minard, Argyll and Bute | PA32 |
| Mornish, Argyll and Bute | PA75 6QG |
| Moss, Argyll and Bute | PA77 6XL |
| Mount Stuart, Argyll and Bute | PA20 |
| Muasdale, Argyll and Bute | PA29 |
| Muirlands, Argyll and Bute | G83 |
| Newcroft, Argyll and Bute | PA66 6BS |
| Newtown, Argyll and Bute | PA32 8UH |
| North Connel, Argyll and Bute | PA37 |
| North Ledaig, Argyll and Bute | PA37 |
| Oban, Argyll and Bute | PA34 |
| Ormsary, Argyll and Bute | PA31 8PE |
| Otter Ferry, Argyll and Bute | PA21 2DH |
| Peninver, Argyll and Bute | PA28 6QP |
| Pennyghael, Argyll and Bute | PA70 |