The variant of the Irish language spoken in Donegal shares many traits with Scottish Gaelic. The Irish spoken in the Donegal Gaeltacht (Irish-speaking area) is of the Ulster dialect, while Inishowen (parts of which only became English-speaking in the early 20th century) used the East Ulster dialect. Ulster Scots is often spoken in both the Finn Valley and The Laggan district of East Donegal. Donegal Irish has a strong influence on learnt Irish across Ulster.

In terms of size and area, it is the largest county in Ulster and the fourth-largest county in all of Ireland. Uniquely, County Donegal shares a small border with only one other county in the Republic of Ireland – County Leitrim. The greater part of its land border is shared with three counties of Northern Ireland: County Londonderry, County Tyrone and County Fermanagh. This geographic isolation from the rest of the Republic has led to Donegal people maintaining a distinct cultural identity and has been used to market the county with the slogan "Up here it's different". While Lifford is the county town, Letterkenny is by far the largest town in the county with a population of 19,588. Letterkenny and the nearby city of Derry form the main economic axis of the northwest of Ireland. Indeed, what became the City of Derry was officially part of County Donegal up until 1610.

When someday comes you'll need to get in.

When someday comes you'll need to be able to get around.