| Skreen, Donegal, F94p5v6 | €30,000 | 2020-01-28 |
| Sladran, Duncrana, Donegal | €260,000 | 2020-05-27 |
| Slatehill, Newtowncunningham, Donegal | €234,000 | 2018-01-12 |
| Slievebawn, Malin Head, Donegal | €95,000 | 2022-06-14 |
| Sraboy, Glencolmcille, Donegal | €180,000 | 2016-11-23 |
| St Edmunds, Laghey, Donegal | €177,000 | 2022-12-20 |
| St Ernans, Donegal Town, Donegal | €405,000 | 2021-04-22 |
| Station St, Pettigo, Donegal | €75,000 | 2026-07-29 |
| Summer Hill Moville, Donegal | €101,000 | 2020-06-30 |
| Summerhill, Donegal | €330,000 | 2026-03-16 |
| Summerhill, Donegal Town, Donegal | €192,000 | 2023-11-07 |
| Suzies Brae, Loughkip, Donegal | €140,000 | 2020-11-23 |
| Tararose Townpark, Lifford, Donegal | €350,000 | 2026-06-16 |
| Tawnalary, Donegal Po, Donegal | €120,000 | 2021-09-09 |
| Tawnasligo, Benroe Bruckless, Donegal | €170,000 | 2017-02-21 |
| Tawney Lower, Kilmacrennan, Donegal | €150,000 | 2025-01-29 |
| Tawnlaraigh, Donegaltown, Donegal | €268,000 | 2020-02-27 |
| Teach Loch Fhada, Rannafast, Donegal | €400,000 | 2024-08-07 |
| The Bungalow, Annagh Clonmany, Donegal | €95,000 | 2017-10-24 |
| The Common, Lifford, Donegal | €64,000 | 2021-08-19 |
| The Diamond, Lifford, Donegal | €120,000 | 2026-01-23 |
| The Friary, Louth Eask, Donegal | €470,000 | 2024-06-19 |
| The Glebe, Donegal | €305,000 | 2023-03-13 |
| The Haugh, Donegal Town, Donegal | €395,000 | 2022-02-15 |
| The Haw, Lifford, Donegal | €175,000 | 2026-05-01 |
| The Mullins, Donegal, Co Donegal | €75,000 | 2026-05-31 |
| The Roughan, Lifford, Donegal | €200,000 | 2023-02-24 |
| The Stone House, Drumgun, Donegal | €176,250 | 2023-11-30 |
| Three Trees Rd, Gortagore, Donegal | €212,750 | 2017-07-28 |
| Three Trees, Quigleys Point Muff, Donegal | €60,000 | 2019-06-20 |
| Three Trees, Quigleys Point, Donegal | €300,000 | 2024-11-26 |
| Ticonnail St., Donegal | €230,000 | 2011-04-08 |
| Tirchonaill St, Donegal, Donegal | €207,000 | 2021-10-01 |
| Tirconail St, Donegal, Donegal | €150,000 | 2025-12-19 |
| Tirconnaill St, Donegal Town, Donegal | €150,000 | 2026-04-21 |
| Tirconnil St, Donegal Town, Donegal | €110,000 | 2025-02-28 |
| Tower, Pettigo, Donegal | €94,500 | 2017-12-07 |
| Townparks, Lifford, Donegal | €235,000 | 2024-03-07 |
| Tromaty, Quigleys Point, Donegal | €168,000 | 2022-07-29 |
| Truman East, Laghey, Donegal | €245,000 | 2018-09-21 |
| Trummon East, Laghey, Donegal | €230,000 | 2024-08-30 |
| Trummon West, Laghey, Donegal | €345,000 | 2024-04-11 |
| Trummon, Laghey, Donegal | €52,000 | 2018-12-12 |
| Tully, Donegal, Donegal | €165,000 | 2018-11-12 |
| Tullybeg Churchill, Donegal, Donegal | €190,000 | 2024-12-18 |
| Tullycullion, Donegal | €160,000 | 2025-09-17 |
| Tullycullion, Donegal Town, Donegal | €300,000 | 2019-08-13 |
| Tullyearl, Donegal | €375,000 | 2023-10-16 |
| Tullyearl, Laghey, Donegal | €250,000 | 2026-01-28 |
| Tullyillion Burtonport, Donegal | €185,500 | 2025-04-14 |
| Tullylark, Pettigo, Donegal | €157,000 | 2019-04-10 |
| Tullymore, Malin Head, Donegal | €300,000 | 2024-02-22 |
| Tullynagreana, Letterbarrow, Donegal | €127,500 | 2017-11-06 |
| Tullynagrena, Letterbarrow, Donegal | €130,000 | 2014-08-27 |
| Tullywee, Laghey, Donegal | €264,000 | 2025-07-28 |
| Tyrconnell St, Donegal, Donegal | €250,000 | 2020-05-19 |
| Upper Aught, Ture Muff, Donegal | €296,000 | 2025-04-10 |
| Upper Ballyargus, Redcastle, Donegal | €145,000 | 2015-12-21 |
| Upper Main St, Main St, Donegal | €185,000 | 2024-03-01 |
| Upper Main Street, Donegal | €220,000 | 2025-01-20 |
| Upper Rossnowlagh, Rossnowlagh, Donegal | €405,000 | 2024-10-24 |
| Upper Three Trees, Quigleys Point, Donegal | €175,000 | 2019-09-16 |
| Upperfallagowan, Arranmore Island, Donegal | €150,000 | 2015-06-22 |
| Wagtails, 2 Drumnatinny, Donegal | €235,000 | 2021-07-19 |
| Water St, Donegal, Donegal | €85,000 | 2016-06-23 |
| Waterloo Place, Donegal | €185,000 | 2023-05-12 |
| Waterloo Place, Donegal Town, Donegal | €575,000 | 2025-03-13 |
| West Town, Malin Head, Donegal | €126,000 | 2023-05-12 |
| West Winds, Dunkineeely, Donegal | €240,000 | 2026-06-02 |
| Westown, Malin Head, Donegal | €150,000 | 2017-12-18 |
| Woodvale Lodge, Laghey, Donegal | €500,000 | 2026-02-26 |