| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Caislean na Finne | city | County Donegal | Ireland | 54.8 | -7.5833333 | 104 | 2495 |
| Caisleán na Finne | city | County Donegal | Ireland | 54.8 | -7.5833333 | 104 | 2495 |
| Calhaine | city | County Donegal | Ireland | 54.6497222 | -8.3766667 | 22 | 1691 |
| Callan | city | County Donegal | Ireland | 54.8566667 | -7.7622222 | 328 | 2314 |
| Cappry | city | County Donegal | Ireland | 54.8 | -7.8125 | 203 | 2315 |
| Cardonagh | city | County Donegal | Ireland | 55.25 | -7.2666667 | 180 | 2180 |
| Carha | city | County Donegal | Ireland | 55.2113889 | -7.5188889 | 433 | 1256 |
| Carn | city | County Donegal | Ireland | 54.5741667 | -7.8405556 | 324 | 2057 |
| Carn Domhnach | city | County Donegal | Ireland | 55.25 | -7.2666667 | 180 | 2180 |
| Carnaghan | city | County Donegal | Ireland | 55.0594444 | -7.4927778 | 3 | 1626 |
| Carndonagh | city | County Donegal | Ireland | 55.25 | -7.2666667 | 180 | 2180 |
| Carntullagh | city | County Donegal | Ireland | 54.6244444 | -8.4302778 | 3 | 841 |
| Carowcanon | city | County Donegal | Ireland | 55.14 | -8.0777778 | 150 | 1680 |
| Carraduffy | city | County Donegal | Ireland | 54.6886111 | -8.2786111 | 269 | 2217 |
| Carraig Airt | city | County Donegal | Ireland | 55.1744444 | -7.7977778 | 101 | 1501 |
| Carran | city | County Donegal | Ireland | 55.1847222 | -7.6236111 | 242 | 1464 |
| Carrick | city | County Donegal | Ireland | 54.6575 | -8.6316667 | 157 | 1616 |
| Carrick | city | County Donegal | Ireland | 54.6102778 | -8.1083333 | 127 | 2133 |
| Carrick Bridge | city | County Donegal | Ireland | 54.6136111 | -8.0852778 | 216 | 2133 |
| Carrick Lower Bridge | city | County Donegal | Ireland | 54.6502778 | -8.6458333 | 9 | 1616 |
| Carrickart | city | County Donegal | Ireland | 55.1744444 | -7.7977778 | 101 | 1501 |
| Carrickbrack | city | County Donegal | Ireland | 54.8497222 | -7.6433333 | 196 | 2314 |
| Carrickcolman | city | County Donegal | Ireland | 54.8013889 | -7.6241667 | 160 | 2327 |
| Carrickmore | city | County Donegal | Ireland | 54.8833333 | -7.4666667 | 6 | 2580 |
| Carrickmore | city | County Donegal | Ireland | 54.8833333 | -7.45 | 19 | 3368 |
| Carrickmore Lower | city | County Donegal | Ireland | 54.8833333 | -7.45 | 19 | 3368 |
| Carrickmore Upper | city | County Donegal | Ireland | 54.8833333 | -7.4666667 | 6 | 2580 |
| Carrigans | city | County Donegal | Ireland | 54.95 | -7.4333333 | 16 | 4363 |
| Carrigart | city | County Donegal | Ireland | 55.1744444 | -7.7977778 | 101 | 1501 |
| Carrowen | city | County Donegal | Ireland | 55.0305556 | -7.4975 | 36 | 2021 |
| Carrowkeel | city | County Donegal | Ireland | 55.1333333 | -7.65 | 416 | 1934 |
| Carryblagh | city | County Donegal | Ireland | 55.2236111 | -7.6230556 | 380 | 926 |
| Carter's Bridge | city | County Donegal | Ireland | 54.6427778 | -8.0902778 | 134 | 2115 |
| Carterʼs Bridge | city | County Donegal | Ireland | 54.6427778 | -8.0902778 | 134 | 2115 |
| Cashel | city | County Donegal | Ireland | 54.7080556 | -8.7377778 | 616 | 1655 |
| Cashel | city | County Donegal | Ireland | 54.6283333 | -8.6111111 | 0 | 1737 |
| Cashel | city | County Donegal | Ireland | 54.7372222 | -8.4205556 | 524 | 2155 |
| Cashel | city | County Donegal | Ireland | 54.5369444 | -8.2019444 | 275 | 2071 |
| Cashel | city | County Donegal | Ireland | 55.1261111 | -7.8694444 | 82 | 1705 |
| Cashel | city | County Donegal | Ireland | 55.2233333 | -7.2744444 | 291 | 2180 |
| Cashel Hill | city | County Donegal | Ireland | 55.1172222 | -8.1369444 | 239 | 1979 |
| Cashellackan | city | County Donegal | Ireland | 54.5261111 | -8.1966667 | 249 | 2071 |
| Cashelmore | city | County Donegal | Ireland | 55.1388889 | -7.9155556 | 3 | 1674 |
| Cashelnagor | city | County Donegal | Ireland | 55.0838889 | -8.0963889 | 521 | 2122 |
| Casheltown | city | County Donegal | Ireland | 54.6755556 | -8.2936111 | 190 | 2193 |
| Cashlings Bridge | city | County Donegal | Ireland | 54.6452778 | -8.5936111 | 249 | 1737 |
| Castledowey | city | County Donegal | Ireland | 54.9197222 | -7.5627778 | 997 | 2246 |
| Castlefinn | city | County Donegal | Ireland | 54.8 | -7.5833333 | 104 | 2495 |
| Castleforward | city | County Donegal | Ireland | 54.9991667 | -7.4844444 | 193 | 2300 |
| Castlequarter | city | County Donegal | Ireland | 55.0544444 | -7.4961111 | 3 | 1626 |
| Cavan | city | County Donegal | Ireland | 54.8225 | -7.6983333 | 380 | 2316 |
| Cavangarden | city | County Donegal | Ireland | 54.5305556 | -8.1411111 | 1272 | 2332 |
| Church Hill | city | County Donegal | Ireland | 54.9833333 | -7.8666667 | 242 | 2307 |
| Church Town | city | County Donegal | Ireland | 54.9602778 | -7.4727778 | 187 | 2300 |
| Cill Charthaigh | city | County Donegal | Ireland | 54.6338889 | -8.5933333 | 246 | 1737 |
| Cill Mhic Reanain | city | County Donegal | Ireland | 55.0308333 | -7.7791667 | 232 | 2304 |
| Cill Mhic Réanáin | city | County Donegal | Ireland | 55.0308333 | -7.7791667 | 232 | 2304 |
| Cionn Caslach | city | County Donegal | Ireland | 55.0166667 | -8.3833333 | 68 | 1161 |
| Claggan | city | County Donegal | Ireland | 54.6725 | -8.3866667 | 236 | 2254 |
| Claggan | city | County Donegal | Ireland | 55.2638889 | -7.4872222 | 449 | 1318 |
| Claggan | city | County Donegal | Ireland | 55.2691667 | -7.1733333 | 6 | 2134 |
| Claggan | city | County Donegal | Ireland | 55.3066667 | -7.1638889 | 26 | 1025 |
| Claggan | city | County Donegal | Ireland | 55.2030556 | -7.0533333 | 226 | 1334 |
| Claragh | city | County Donegal | Ireland | 55.0291667 | -7.6866667 | 177 | 2217 |
| Claragh | city | County Donegal | Ireland | 55.3013889 | -7.3377778 | 380 | 1426 |
| Cloghan | city | County Donegal | Ireland | 54.8425 | -7.9336111 | 321 | 2314 |
| Cloghbane | city | County Donegal | Ireland | 55.2147222 | -7.8147222 | 0 | 914 |
| Cloghboy | city | County Donegal | Ireland | 54.775 | -8.4927778 | 0 | 1830 |
| Clogher | city | County Donegal | Ireland | 54.8372222 | -8.4255556 | 3 | 1181 |
| Clogherny | city | County Donegal | Ireland | 55.2616667 | -7.1983333 | 200 | 2134 |
| Cloghfin | city | County Donegal | Ireland | 55.1844444 | -7.6594444 | 328 | 1824 |
| Cloghfin | city | County Donegal | Ireland | 54.8438889 | -7.5761111 | 118 | 2351 |
| Cloghfin | city | County Donegal | Ireland | 54.7941667 | -7.5519444 | 127 | 2495 |
| Cloghfin | city | County Donegal | Ireland | 55.2491667 | -7.4347222 | 367 | 2217 |
| Cloghglass | city | County Donegal | Ireland | 55.2325 | -7.4033333 | 429 | 2256 |
| Cloghorn | city | County Donegal | Ireland | 55.2852778 | -7.3691667 | 301 | 1898 |
| Cloghroe | city | County Donegal | Ireland | 54.8513889 | -7.7777778 | 669 | 2314 |
| Clonblesk | city | County Donegal | Ireland | 55.1455556 | -7.4255556 | 249 | 2013 |
| Clonglash | city | County Donegal | Ireland | 55.1325 | -7.4086111 | 334 | 2297 |
| Clonleigh | city | County Donegal | Ireland | 54.8608333 | -7.4727778 | 32 | 2837 |
| Clonmany | city | County Donegal | Ireland | 55.2666667 | -7.4166667 | 190 | 1548 |
| Cloon | city | County Donegal | Ireland | 54.9688889 | -7.4413889 | 32 | 5164 |
| Clooney | city | County Donegal | Ireland | 54.8391667 | -8.4094444 | 3 | 1594 |
| Clooney | city | County Donegal | Ireland | 55.0547222 | -7.6380556 | 3 | 2058 |
| Cloontagh | city | County Donegal | Ireland | 55.2486111 | -7.3705556 | 410 | 2242 |
| Cluain Maine | city | County Donegal | Ireland | 55.2666667 | -7.4166667 | 190 | 1548 |
| Cock Hill | city | County Donegal | Ireland | 55.15 | -7.4447222 | 252 | 2013 |
| Commeen | city | County Donegal | Ireland | 54.9483333 | -8.1283333 | 154 | 2310 |
| Commeen | city | County Donegal | Ireland | 54.8191667 | -7.9752778 | 429 | 2315 |
| Common Bridge | city | County Donegal | Ireland | 54.7466667 | -8.4244444 | 278 | 2155 |
| Conmhaigh | city | County Donegal | Ireland | 54.8608333 | -7.6655556 | 203 | 2314 |
| Connor Bridge | city | County Donegal | Ireland | 54.5758333 | -8.135 | 203 | 2051 |
| Convoy | city | County Donegal | Ireland | 54.8608333 | -7.6655556 | 203 | 2314 |
| Coolmore | city | County Donegal | Ireland | 54.5444444 | -8.2097222 | 272 | 934 |
| Copan | city | County Donegal | Ireland | 54.6458333 | -8.0305556 | 419 | 2325 |
| Corcam | city | County Donegal | Ireland | 54.8063889 | -7.7225 | 160 | 2315 |
| Corderry | city | County Donegal | Ireland | 54.975 | -7.9377778 | 498 | 2307 |
| Cormakilly | city | County Donegal | Ireland | 54.7791667 | -7.5886111 | 213 | 2655 |
| Cornabrogue | city | County Donegal | Ireland | 54.7533333 | -7.6886111 | 515 | 2510 |
| Cornagillah | city | County Donegal | Ireland | 54.8869444 | -7.6752778 | 410 | 2310 |
| Corraffrin | city | County Donegal | Ireland | 54.7708333 | -7.7711111 | 498 | 2393 |
| Corranagh | city | County Donegal | Ireland | 54.9205556 | -7.6963889 | 498 | 2237 |
| Corveen | city | County Donegal | Ireland | 55.1052778 | -8.2636111 | 239 | 1799 |
| Cottian | city | County Donegal | Ireland | 55.0180556 | -7.7963889 | 262 | 2304 |
| Cracknagh | city | County Donegal | Ireland | 55.2888889 | -7.2202778 | 124 | 2193 |
| Craigawillin | city | County Donegal | Ireland | 55.2791667 | -7.3144444 | 6 | 1989 |
| Craigbeefan | city | County Donegal | Ireland | 54.72 | -8.7177778 | 593 | 1239 |
| Craigtown | city | County Donegal | Ireland | 55.2416667 | -7.2291667 | 318 | 2252 |
| Cranford | city | County Donegal | Ireland | 55.1438889 | -7.6963889 | 0 | 1856 |
| Crannogeboy | city | County Donegal | Ireland | 54.7708333 | -8.4691667 | 154 | 1830 |
| Creaghadoos | city | County Donegal | Ireland | 54.8880556 | -7.4944444 | 45 | 2580 |
| Creehennan | city | County Donegal | Ireland | 55.1413889 | -7.1875 | 22 | 1509 |
| Creeslough | city | County Donegal | Ireland | 55.1166667 | -7.9 | 180 | 2164 |
| Creevagh | city | County Donegal | Ireland | 55.1388889 | -7.8522222 | 3 | 1705 |
| Crimlin Bridge | city | County Donegal | Ireland | 54.6725 | -8.7797222 | 321 | 910 |
| Croagh | city | County Donegal | Ireland | 54.6869444 | -8.3319444 | 807 | 2193 |
| Croaghbeg | city | County Donegal | Ireland | 54.6233333 | -8.5516667 | 0 | 803 |
| Croaghlosky | city | County Donegal | Ireland | 55.1308333 | -8.0177778 | 501 | 1958 |
| Crockglass | city | County Donegal | Ireland | 55.1455556 | -7.9683333 | 364 | 2091 |
| Crocknagapple | city | County Donegal | Ireland | 54.7333333 | -8.3352778 | 459 | 2321 |
| Crocknasharrach | city | County Donegal | Ireland | 54.6716667 | -8.3433333 | 764 | 2243 |
| Crohy | city | County Donegal | Ireland | 54.9119444 | -8.4419444 | 0 | 786 |
| Croithli | city | County Donegal | Ireland | 55.025 | -8.2608333 | 400 | 2280 |
| Croithlí | city | County Donegal | Ireland | 55.025 | -8.2608333 | 400 | 2280 |
| Crolly | city | County Donegal | Ireland | 55.025 | -8.2608333 | 400 | 2280 |
| Cronagass | city | County Donegal | Ireland | 54.7261111 | -8.2419444 | 547 | 2321 |
| Cronkeeran | city | County Donegal | Ireland | 54.7472222 | -8.3766667 | 616 | 2264 |
| Cross | city | County Donegal | Ireland | 54.9552778 | -7.4869444 | 246 | 2455 |
| Cross Roads | city | County Donegal | Ireland | 54.7858333 | -7.6905556 | 236 | 2510 |
| Crossroads | city | County Donegal | Ireland | 55.1333333 | -8.1 | 187 | 1364 |
| Crove | city | County Donegal | Ireland | 54.7058333 | -8.5361111 | 708 | 2293 |
| Crowkeeragh | city | County Donegal | Ireland | 54.6697222 | -8.5677778 | 505 | 2318 |
| Crumlin | city | County Donegal | Ireland | 54.7605556 | -8.4555556 | 321 | 2062 |
| Cuil Dabhcha | city | County Donegal | Ireland | 55.2833333 | -7.1666667 | 16 | 2134 |
| Cuil na gCuirridin | city | County Donegal | Ireland | 54.8 | -7.6833333 | 144 | 2316 |
| Culdaff | city | County Donegal | Ireland | 55.2833333 | -7.1666667 | 16 | 2134 |
| Culkeeny | city | County Donegal | Ireland | 55.3166667 | -7.2002778 | 324 | 1488 |
| Culoort | city | County Donegal | Ireland | 55.3494444 | -7.345 | 246 | 871 |
| Cummirk Bridge | city | County Donegal | Ireland | 54.8655556 | -8.086111 | 541 | 2314 |
| Currs | city | County Donegal | Ireland | 54.6341667 | -8.6236111 | 118 | 1737 |
| Cúil Dabhcha | city | County Donegal | Ireland | 55.2833333 | -7.1666667 | 16 | 2134 |
| Cúil na gCuirridín | city | County Donegal | Ireland | 54.8 | -7.6833333 | 144 | 2316 |
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