The Counties
| County | County town | First created | Est. population (2006) | Notes |
|---|---|---|---|---|
| Antrim | Antrim | Early 14th century | 566,000 | Modern boundaries formed in 1605. |
| Armagh | Armagh | 1584 | 141,000 | |
| Down | Downpatrick | Early 14th century | 492,840 | Modern boundaries formed in 1605. |
| Fermanagh | Enniskillen | 1584 | 55,000 | Based on the territory of the Maguires. |
| Londonderry | Coleraine | 1613 | 233,500 | Merging of County Coleraine (also spelt as Colerain), and the baronies of Loughinsholin, North East Liberties of Coleraine, and the North-West Liberties of Londonderry. |
| Tyrone | Omagh | 1584 | 166,516 | Based on the Irish kingdom of Tír Eoghain, with its north-eastern part (barony of Loughinsholin) being merged with County Londonderry in 1613. |
Read more about this topic: Counties Of Northern Ireland