| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Harold's Cross | city | Baile Atha Cliath | Ireland | 53.33 | -6.29 | 124 | 333402 |
| Harold’s Cross | city | Baile Atha Cliath | Ireland | 53.33 | -6.29 | 124 | 333402 |
| Hartstown | city | Baile Atha Cliath | Ireland | 53.39 | -6.43 | 154 | 79289 |
| Howth | city | Baile Atha Cliath | Ireland | 53.39 | -6.07 | 3 | 9284 |
| Hynestown | city | Baile Atha Cliath | Ireland | 53.58 | -6.28 | 488 | 2854 |