| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Harold's Cross | city | Baile Atha Cliath | Ireland | 53.3263889 | -6.2947222 | 124 | 103037 |
| Haroldʼs Cross | city | Baile Atha Cliath | Ireland | 53.3263889 | -6.2947222 | 124 | 103037 |
| Hartstown | city | Baile Atha Cliath | Ireland | 53.3930556 | -6.4269444 | 154 | 60153 |
| Howth | city | Baile Atha Cliath | Ireland | 53.3877778 | -6.0652778 | 3 | 13608 |
| Hynestown | city | Baile Atha Cliath | Ireland | 53.5772222 | -6.2836111 | 488 | 88714 |
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