| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Haremount | city | Ireland | 52.15 | -9.40 | 498 | 1699 | |
| Hartstown | city | Ireland | 52.97 | -6.73 | 744 | 2649 | |
| Hermitage | city | Ireland | 52.30 | -6.45 | 3 | 17403 | |
| High Street | city | Ireland | 53.03 | -8.07 | 252 | 1084 | |
| Hill Street | city | Ireland | 53.88 | -8.08 | 232 | 1288 | |
| Hill Town | city | Ireland | 54.68 | -8.33 | 807 | 1500 | |
| Hollymount | city | Ireland | 53.65 | -9.12 | 187 | 1317 | |
| Holme | city | Ireland | 55.15 | -7.72 | 393 | 1407 | |
| Horseleap | city | Ireland | 53.47 | -8.67 | 403 | 1873 | |
| Horseleap Cross Roads | city | Ireland | 53.47 | -8.67 | 403 | 1873 |