Best mobile network in HP18 Hemel Hempstead postcode district

According to Ofcom's December 2024 Connected Nations report, EE comes out on top for Hemel Hempstead. In this suburban area, EE achieves an overall coverage score of 88/100 — driven by strong 5G coverage (78%) and rock-solid 4G at 98%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE consistently leads Three by 7 points overall. While Three reaches 62% on 5G and 100% on 4G in Hemel Hempstead, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 78 and 76 respectively.

EE has made solid 5G inroads across Hemel Hempstead, reaching 78% of premises in HP18. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 98% keeps reliability high throughout.

The runner-up in HP18 is Three at 81/100 (62% 5G / 100% 4G). The margin is noticeable but not enormous. EE edges ahead on 5G depth; if your plan is with Three, 4G performance should still be solid.