Place
- Harpenden, Hertfordshire1
- Hatfield, Hertfordshire1
- Hemel Hampstead, Hertfordshire1
- Hertfordshire, England1
- Hertingfordbury, Hertfordshire1
- Hexton, Hertfordshire1
- Hinxworth, Hertfordshire1
- Hitchin, Hundred of, Hertfordshire1
- Hoddesdon, Hertfordshire1
- Hunsdon, Hertfordshire1
- Ickleford, Hertfordshire1
- Ippollitts, Hertfordshire1
- Kelshall, Hertfordshire1
- Kensworth, Hertfordshire1
- Kimpton, Hertfordshire1
- King's Langley, Hertfordshire1
- King's Walden, King's1
- Knebworth, Hertfordshire1
- Layston, Hertfordshire1
- Letchworth, Hertfordshire1