County Donegal on Wikipedia.

Ardara, Methodist Church. © Graeme Harvey.

Ballintra, St. Brigid (R.C.). Link. Drumholm Parish Church (CoI). Methodist Church. All © Graeme Harvey.
Ballyshannon, St. Patrick (R.C.). Killbarron Parish Church (CoI). Both © Graeme Harvey.
Bridgetown, Gospel Hall. © Graeme Harvey.
Bruckless, St. Conall and St. Joseph (R.C.). © Graeme Harvey.
Bundoran, Church of The Immaculate Conception (R.C.). G 820 586. Finner Parish Church (CoI). Redundant Church. All © Graeme Harvey. Another view of the Church of The Immaculate Conception. © Gerard Close.

Carrickfinn. © Lorraine Waddington.
Castlefin, St. Mary (R.C.). © Graeme Harvey.
Clar, St. Agatha (R.C.). © Graeme Harvey.

Donegal.

Gweedore. © Lorraine Waddington.

Killaghtee, St. Peter (CoI). © Graeme Harvey.
Killybegs, St. Mary. © Graeme Harvey.

Laghey, the Parish Church (CoI). © Graeme Harvey.
Letterkenny, St. Eunan's Cathedral (R.C.). Link. Trinity Presbyterian Church. Link. Conwal Parish Church (CoI). Link. All © Graeme Harvey.
Lifford, Church of Slugadius (CoI). © Graeme Harvey.
Liscooley, Donoughmore Prebyterian Church. © Graeme Harvey.
Lough Eske, Christ Church (CoI). © Graeme Harvey.

Muckross, St. John (CoI). © Graeme Harvey.

Pettigo, Catholic Church. Templecarne Parish Church (CoI). Both © Graeme Harvey.

Rossnowlagh, Church of the Immaculate Heart of Mary (R.C.) at the Franciscan Friary. G 866 673. © Gerard Close. Link.

Stranorlar.

Urney, Christ Church (CoI). © Graeme Harvey.