| 9 | 9 ●● | Greenhill | Greater London - Harrow | Distant → Remote |
| 9 ●● | 9 ●●● | Harrow | Greater London - Harrow | Remote |
| 9 ●●● | 10 ● | West Harrow | Greater London - Harrow | Remote |
| 10 ● | 11 | North Harrow | Greater London - Harrow | Near → Remote |
| 11 | 12 ● | Pinner | Greater London - Harrow | Adjacent → Remote |
| 12 ● | 12 ●● | Pinner Green | Greater London - Harrow | Remote |
| 12 ●● | 13 ●● | Northwood Hills | Greater London - Hillingdon | Adjacent → Remote |
| 13 ●● | 14 ● | Northwood | Greater London - Hillingdon | Adjacent → Distant |
| 14 ● | 15 | Eastbury | Hertfordshire - Three Rivers | Distant → Remote |
| 15 | 15 ●●● | Moor Park | Hertfordshire - Three Rivers | Remote |
| 15 ●●● | 16 ●● | Croxley Green | Hertfordshire - Three Rivers | Remote |
| 16 ●● | 17 ●●● | Rickmansworth | Hertfordshire - Three Rivers | Near → Remote |
| 17 ●●● | 18 ● | Moneyhill | Hertfordshire - Three Rivers | Remote |
| 18 ● | 18 ●● | Mill End | Hertfordshire - Three Rivers | Remote |
| 18 ●● | 19 ●● | Chorleywood Bottom | Hertfordshire - Three Rivers | Near → Remote |
| 19 ●● | 20 | Chorleywood | Hertfordshire - Three Rivers | Adjacent → Distant |
| 20 | 20 ●● | Chorleywood West | Hertfordshire - Three Rivers | Distant → Remote |
| 20 ●● | 21 | Chenies | Buckinghamshire - Chiltern | Remote |
| 21 | 22 ●● | Little Chalfont | Buckinghamshire - Chiltern | Adjacent → Remote |
| 22 ●● | 23 ●● | Amersham Common | Buckinghamshire - Chiltern | Near → Remote |
| 23 ●● | 23 ●●● | Amersham on the Hill | Buckinghamshire - Chiltern | Near |
| 23 ●●● | 24 ●●● | Amersham | Buckinghamshire - Chiltern | Near → Remote |
| 24 ●●● | 25 | Chesham Bois | Buckinghamshire - Chiltern | Remote |
| 25 | 25 ● | Hyde Heath | Buckinghamshire - Chiltern | Remote |
| 25 ● | 27 ● | Little Missenden | Buckinghamshire - Chiltern | Near → Remote |
| 27 ● | 28 ● | Little Kingshill | Buckinghamshire - Chiltern | Remote |
| 28 ● | 30 | Great Missenden | Buckinghamshire - Chiltern | Adjacent → Remote |
| 30 | 30 ●● | Hunt’s Green | Buckinghamshire - Chiltern | Remote |
| 30 ●● | 32 ● | Wendover Dean | Buckinghamshire - Aylesbury Vale | Adjacent → Remote |
| 32 ● | 32 ●● | Kingsash | Buckinghamshire - Chiltern | Remote |
| 32 ●● | 34 | Wendover | Buckinghamshire - Aylesbury Vale | Near → Remote |
| 34 | 35 | World’s End | Buckinghamshire - Aylesbury Vale | Distant → Remote |
| 35 | 35 ● | West End | Buckinghamshire - Aylesbury Vale | Remote |
| 35 ● | 36 ●●● | Stoke Mandeville | Buckinghamshire - Aylesbury Vale | Near → Remote |
| 36 ●●● | 37 | Bedgrove | Buckinghamshire - Aylesbury Vale | Remote |
| 37 | 37 ●●● | Walton | Buckinghamshire - Aylesbury Vale | Near → Remote |
| 37 ●●● | 38 ●●● | California | Buckinghamshire - Aylesbury Vale | Adjacent → Remote |
| 38 ●●● | 40 ●● | Haydon Hill | Buckinghamshire - Aylesbury Vale | Near → Remote |
| 40 ●● | 42 ●● | Fleet Marston | Buckinghamshire - Aylesbury Vale | Near → Remote |
| 42 ●● | 43 ●● | Waddesdon | Buckinghamshire - Aylesbury Vale | Remote |
| 43 ●● | 44 ●● | Quainton | Buckinghamshire - Aylesbury Vale | Remote |