| Cabry, Quigleys Point | — | 5 |
| Caislean Court, Castlefin | — | 7 |
| Calhame, Bruckless | — | 6 |
| Callan, Drumkeen | — | 6 |
| Canal Road, Letterkenny | €150,250 | 8 |
| Cannon Court, Mountcharles | — | 8 |
| Cappry, Ballybofey | €170,000 | 16 |
| Cara Bay, Culdaff | €168,500 | 24 |
| Caravan Road, Dungloe | — | 7 |
| Carnagarve, Moville | — | 5 |
| Carnagore, Carrigart | — | 9 |
| Carnamoyle, Muff | — | 6 |
| Carnamuggagh, Letterkenny | — | 8 |
| Carnamuggagh Upper, Letterkenny | — | 9 |
| Carnmore Road, Dungloe | — | 5 |
| Carolina Park, Letterkenny | — | 12 |
| Carraig Craobh, Crievesmith | — | 14 |
| Carraig Craobh, Letterkenny | — | 9 |
| Carraig Fern, Buncrana | — | 14 |
| Carrick, Carrigart | — | 8 |
| Carrick Crescent, Ballybofey | — | 12 |
| Carrickboyle, Brinlack | — | 5 |
| Carrickcoyle, Derrybeg | — | 6 |
| Carrickmagrath, Ballybofey | — | 6 |
| Carrickmaquigley, Redcastle | — | 8 |
| Carricknagore, Bruckless | — | 9 |
| Carricknamohill, Killybegs | — | 5 |
| Carrowcannon, Falcarragh | — | 8 |
| Carrowhugh, Greencastle | €328,750 | 21 |
| Carrowkeel, Quigley's Point | — | 5 |
| Carrownaffe, Moville | — | 7 |
| Carrownamaddy, Burt | — | 5 |
| Carrowreagh, Bridgend | — | 5 |
| Carrowreagh, Glenvar | — | 6 |
| Carrowreagh Road, Carndonagh | — | 5 |
| Carrowtrasna, Greencastle | — | 8 |
| Carrygawley, Letterkenny | — | 6 |
| Cashel, Creeslough | — | 5 |
| Cashel, Gortahork | — | 5 |
| Cashel, Rossnowlagh | — | 8 |
| Cashelard, Ballyshannon | €175,000 | 9 |
| Cashelshanaghan, Letterkenny | — | 6 |
| Castle Avenue, Buncrana | — | 5 |
| Castle Park, Buncrana | — | 10 |
| Castle Park, Newtowncunningham | — | 5 |
| Castle Street, Ballyshannon | — | 5 |
| Castle Street, Ramelton | €180,000 | 8 |
| Castlebane, Lisnennan | — | 5 |
| castletown, dunkineely | — | 5 |
| Castleview, Raphoe | — | 10 |
| Cathedral Hill, Raphoe | €130,000 | 21 |
| Cavan Lower, Killygordon | — | 5 |
| Cavan Upper, Killygordon | — | 6 |
| Cavangarden, Ballyshannon | — | 5 |
| Ceanann View, Carnamuggagh | — | 6 |
| Ceanann View, Letterkenny | — | 9 |
| Ceannan View, Letterkenny | — | 5 |
| Cedar Grove, Carndonagh | — | 10 |
| Celtic Apts, Pearse Rd | €46,429 | 7 |
| Chapel Road, Dungloe | — | 7 |
| Chapel Street, Carndonagh | — | 6 |
| Cherry Avenue, Carndonagh | €147,500 | 18 |
| Cherry Avenue, Tiernaleague | — | 5 |
| Chestnut Grove, Glencar | — | 8 |
| Chestnut Grove, Letterkenny | — | 19 |
| Church Lane, Letterkenny | €137,000 | 10 |
| Church Road, Bundoran | €250,000 | 17 |
| Church Road, Killybegs | €170,000 | 13 |
| Church View, St. Johnston | — | 6 |
| Churchlands, Manorcunningham | — | 10 |
| Churchview, St. Johnston | — | 6 |
| Cill Greine, Lismonaghan | €97,000 | 14 |
| Clachan Ghail, Malinmore | — | 6 |
| Clachan Mor, Letterkenny | — | 7 |
| Clachan Mor, Windyhall | — | 5 |
| Clar, Redcastle | — | 6 |
| Clara Meadows, Dunfanaghy | €197,500 | 11 |
| Clare, Redcastle | — | 7 |
| clearwaters, rathmullan | €260,000 | 12 |
| Cleendra, Dungloe | — | 6 |
| Cloncool Park, Buncrana | — | 8 |
| Clonleigh Park, Lifford | €150,000 | 16 |
| Clontallagh, Downings | — | 6 |
| Clooney, Ramelton | — | 5 |
| Cloontagh, Clonmany | — | 9 |
| Cloughroe, Drumkeen | — | 6 |
| Cluain Airne, Glebe | €355,000 | 7 |
| Cluain Ard, Killyclug | — | 6 |
| Cluain Barron, Ballyshannon | €108,500 | 22 |
| Cluain Dara, Gortahork | €102,000 | 15 |
| Cluain Mhuire, Buncrana | €162,000 | 11 |
| Colehill, Newtowncunningham | €177,000 | 17 |
| College Farm Road, Letterkenny | €300,000 | 11 |
| College Park, Glencar | — | 8 |
| College Park, Letterkenny | €182,500 | 24 |
| College Street, Ballyshannon | — | 6 |
| Common, Ardara | — | 6 |
| Coneyburrow, Lifford | — | 6 |
| Coneyburrow Rd, Lifford | €106,000 | 10 |
| Conlin Road, Killybegs | — | 6 |
| Connaberry, Slavery | — | 21 |
| Conorville, Ludden | — | 5 |
| Convent Road, Letterkenny | — | 8 |
| Conwal, Letterkenny | — | 5 |
| Coolcholly, Ballyshannon | — | 9 |
| Coolmore, Rossnowlagh | — | 7 |
| Coopers Crest, Milford | — | 8 |
| Corcullion, Castlefin | — | 5 |
| Corgary, Ballybofey | €200,000 | 9 |
| Corlea, Ballyshannon | €90,000 | 8 |
| Corlecky, Ballybofey | — | 5 |
| Cornagill, Letterkenny | — | 8 |
| Cornfield Lane, Newtowncunningham | — | 7 |
| Correnagh, Letterkenny | €317,764 | 11 |
| Coshclady, Bunbeg | — | 6 |
| Court Manor House, Justice Walsh Rd | — | 14 |
| Coylin Court, Ramelton | — | 18 |
| Crawford Court, Moville | — | 5 |
| Crawford Square, Moville | €141,000 | 9 |
| Creevy, Ballyshannon | €290,000 | 12 |
| Creggan, Ballybofey | — | 7 |
| Crest of the Wave, Bundoran | — | 6 |
| Crieve Mor Avenue, Crievesmith | €263,876 | 137 |
| Crieve Mor Avenue, Letterkenny | €299,500 | 7 |
| Crievesmith, Letterkenny | €155,000 | 6 |
| crievesmith park, Letterkenny | — | 6 |
| Crislamore, Burnfoot | — | 5 |
| Croaghan Heights, Lifford | — | 10 |
| Croaghross, Portsalon | €290,000 | 16 |
| Crocknageeha, Rinclevan | — | 16 |
| Crocknamurleog, Downings | — | 13 |
| Crohyboyle, Dungloe | — | 5 |
| Crolly, Letterkenny | — | 7 |
| Crossconnell, Clonmany | — | 7 |
| Cruach Na Cille, Ballyraine | — | 12 |
| Cuan Na Tra, Kerrykeel | — | 6 |
| Cuirt Aishling, Ballybofey | — | 5 |
| Cuirt Aisling, Donegal Rd | — | 6 |
| Cuirt na Ri, Old Laghey Road | — | 5 |
| Cul Na Toinne, Bunbeg | — | 5 |
| Culdaff, Lifford | — | 5 |
| Culdaff Manor, Culdaff | — | 6 |
| Culkeeny, Malin | — | 5 |
| Curraghamone, Ballybofey | €160,000 | 8 |
| The Castle Inn, Greencastle | — | 6 |
| The Cedars, Ballybofey | — | 8 |
| The Courtyard, Bundoran | — | 6 |
| The Courtyard, Market Square | — | 9 |