Hemel Hempstead mobile coverage Three strongest indoors, 96% vs EE 89% HP postcode area
No network wins Hemel Hempstead on overall coverage: all four are within 1 point, but indoors Three reaches 96% of sampled addresses and EE 89%.
Hemel Hempstead as a whole
Ofcom Mobile Coverage data (May 2025), measured across 2,097 addresses in 109 sampled postcodes, pooled from 20 districts. Methodology.
What differs inside Hemel Hempstead
Where the networks split most
- HP15 Hazlemere, Hughenden, Great Missenden: indoors O2 and Three 100%, EE 29%.
- HP17 Haddenham, Upton, Great: indoors Three 80%, O2 15%.
- HP18 Quainton, Waddesdon, Long Crendon: indoors EE and Three 89%, Vodafone 28%.
Each network's weakest and strongest district
| Network | Indoor | 5G-grade outdoor |
|---|---|---|
| EE | 29% in HP15 Hazlemere; 100% in 11 districts | within 8 points |
| O2 | 15% in HP17 Haddenham; 100% in 14 districts | 89% in HP18 Quainton; 100% in 18 districts |
| Three | 73% in HP14 Ridgeway; 100% in 14 districts | within 8 points |
| Vodafone | 28% in HP18 Quainton; 100% in 16 districts | within 8 points |
Middle of the area against its edges
The 6 districts nearest the middle (HP5 Chesham, HP6 Amersham, HP7 Amersham, HP13 Downley, HP15 Hazlemere, HP16 Great) against the 6 furthest out (HP2 Adeyfield, HP3 Sarratt, HP17 Haddenham, HP18 Quainton, HP19 Aylesbury, HP20 Aylesbury):
- O2 indoors: 100% in the middle, 80% at the edges.
- Vodafone indoors: 98% in the middle, 86% at the edges.
- EE indoors: 84% in the middle, 94% at the edges.
District by district
| District | Places | Indoor, low to high | 5G-grade outdoor, low to high | Addresses |
|---|---|---|---|---|
| HP1 | Bovingdon, Berkhamsted, Great Gaddesden | Three 95%; EE and Vodafone 100% | 100% on all four | 128 |
| HP2 | Adeyfield, Redbourn, St Michael | 100% on all four | 100% on all four | 69 |
| HP3 | Sarratt, Nash Mills, Kings Langley | 100% on all four | 100% on all four | 94 |
| HP4 | Berkhamsted, Aldbury, Ivinghoe | EE and Three 87%; Vodafone 100% | 100% on all four | 71 |
| HP5 | Chesham, Amersham, Chenies | 100% on all four | 100% on all four | 167 |
| HP6 | Amersham, Chesham Bois, Little Chalfont | 100% on all four | 100% on all four | 145 |
| HP7 | Amersham, Beaconsfield, Little Chalfont | 100% on all four | 100% on all four | 147 |
| HP8 | Amersham, Little Chalfont, Chalfont St Giles | EE 74%; the rest 100% | 100% on all four | 88 |
| HP9 | Beaconsfield, Chalfont St Giles, Penn | 100% on all four | 100% on all four | 94 |
| HP10 | Hazlemere, Beaconsfield, Penn | 100% on all four | 100% on all four | 126 |
| HP11 | Chepping Wycombe, Marsh, Booker | EE 59%; Three and Vodafone 100% | 100% on all four | 41 |
| HP12 | Downley, West Wycombe, Sands | EE 92%; the rest 100% | 100% on all four | 195 |
| HP13 | Downley, Hughenden, Chepping Wycombe | EE 75%; O2 and Vodafone 100% | 100% on all four | 105 |
| HP14 | Ridgeway, Lane End, West Wycombe | O2 45%; EE 91% | O2 93%; the rest 100% | 107 |
| HP15 | Hazlemere, Hughenden, Great Missenden | EE 29%; O2 and Three 100% | 100% on all four | 131 |
| HP16 | Great, The Lee, Wendover | 100% on all four | 100% on all four | 45 |
| HP17 | Haddenham, Upton, Great | O2 15%; Three 80% | 100% on all four | 92 |
| HP18 | Quainton, Waddesdon, Long Crendon | Vodafone 28%; EE and Three 89% | O2 89%; EE and Three 100% | 46 |
| HP19 | Aylesbury, Watermead, Coldharbour | 100% on all four | 100% on all four | 82 |
| HP20 | Aylesbury, Bierton, Kingsbrook | 100% on all four | 100% on all four | 124 |
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