| County Londonderry | |
| Contae Dhoire Coontie Lunnonderrie | |
| Auxilium A Domino (Latin) "Help comes from the Lord" | |
 Coat of arms | |
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| Provinces | Ulster |
|---|---|
| County town | Coleraine |
| Area Rank | 15th |
| Population | 247,132 |
| Year | 2011 |
| Population Rank | 6th |
County Londonderry (Irish: Contae Dhoire) is a county in Northern Ireland. The county covers an area of 2,074 km², with a population of approximately 247,132. There is also the Northern Ireland City of Londonderry City there too. Unionists call it Londonderry as nationalists just call it Derry
Geography[]
The county covers an area of 2,074 km², with a population of approximately 247,132.
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| County Donegal | 
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County Antrim | ||
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| County Tyrone | Lough Neagh |
| Counties of Ireland | |
|---|---|
| Connacht | Galway | Leitrim | Mayo | Roscommon | Sligo |
| Munster | Clare | Cork | Kerry | Limerick | Tipperary | Waterford |
| Leinster | Carlow | Dublin | Kildare | Kilkenny | Laois | Longford | Louth | Meath | Offaly | Westmeath | Wexford | Wicklow |
| Ulster | Antrim | Armagh | Cavan | Donegal | Down | Fermanagh | Londonderry | Monaghan | Tyrone |