| Name | Population | Altitude | Latitude | Longitude | 
| Cabragh : | 
 | 108 m | 54°6'18.0" N | 8°15'53.0" W | 
| Cabraghkeel : | 
 | 9 m | 54°15'56.9" N | 9°1'50.0" W | 
| Cannaghanally : | 
 | 54 m | 54°14'7.1" N | 8°54'47.0" W | 
| Cappagh : | 
 | 149 m | 54°10'13.1" N | 8°40'17.0" W | 
| Carha : | 
 | 64 m | 54°8'60.0" N | 9°1'60.0" W | 
| Carney : | 
 | 1 m | 54°20'26.2" N | 8°31'38.0" W | 
| Carns : | 
 | 90 m | 54°10'54.1" N | 8°59'51.0" W | 
| Carranduff : | 
 | 4 m | 54°15'13.0" N | 9°3'48.0" W | 
| Carraun : | 
 | 25 m | 54°8'55.0" N | 9°5'31.0" W | 
| Carrigans : | 
 | 76 m | 54°6'27.0" N | 8°29'23.0" W | 
| Carrowbunnauna : | 
 | 37 m | 54°15'59.0" N | 8°35'54.0" W | 
| Carrowcaslan : | 
 | 10 m | 54°15'33.8" N | 8°45'47.0" W | 
| Carrowcrory : | 
 | 128 m | 54°1'27.1" N | 8°24'2.0" W | 
| Carrowhubbuck : | 
 | 
 | 54°13'25.0" N | 9°5'32.0" W | 
| Carrowilkin : | 
 | 72 m | 54°1'0.1" N | 8°46'0.0" W | 
| Carrowmably : | 
 | 14 m | 54°15'45.0" N | 8°52'52.0" W | 
| Carrowmore : | 
 | 30 m | 54°7'18.8" N | 8°41'37.0" W | 
| Carrownacarrick : | 
 | 76 m | 54°9'25.9" N | 8°36'18.0" W | 
| Carrownacreevy : | 
 | 157 m | 54°4'28.9" N | 8°27'2.0" W | 
| Carrownamaddoo : | 
 | 77 m | 54°23'26.2" N | 8°28'12.0" W | 
| Carrowneden : | 
 | 101 m | 54°8'22.9" N | 8°41'52.0" W | 
| Carrowntawy : | 
 | 76 m | 54°7'48.0" N | 8°34'11.0" W | 
| Carrowpadeen : | 
 | 15 m | 54°16'57.0" N | 8°59'2.0" W | 
| Carrowreagh : | 
 | 79 m | 54°2'24.0" N | 8°43'21.0" W | 
| Carrowreilly : | 
 | 76 m | 54°6'29.9" N | 8°37'49.0" W | 
| Carrowwilkin : | 
 | 72 m | 54°1'0.1" N | 8°46'0.0" W | 
| Cartronplank : | 
 | 1 m | 54°25'28.9" N | 8°27'10.0" W | 
| Cashelgarran : | 
 | 52 m | 54°21'47.9" N | 8°31'23.0" W | 
| Castlebaldwin : | 
 | 102 m | 54°4'45.1" N | 8°22'34.0" W | 
| Castleconor : | 
 | 2 m | 54°9'46.1" N | 9°7'46.0" W | 
| Castlegal : | 
 | 1 m | 54°18'56.9" N | 8°25'27.0" W | 
| Castleore : | 
 | 80 m | 54°12'45.0" N | 8°23'14.0" W | 
| Castletown : | 
 | 59 m | 54°11'26.9" N | 8°28'50.0" W | 
| Chapel Street : | 
 | 81 m | 54°12'56.9" N | 8°39'38.0" W | 
| Charlesfort : | 
 | 48 m | 54°14'57.1" N | 8°51'42.0" W | 
| Claddagh : | 
 | 56 m | 54°1'22.1" N | 8°54'29.0" W | 
| Claragh Scotch : | 
 | 81 m | 54°7'16.0" N | 8°38'43.0" W | 
| Cliafuine : | 
 | 1 m | 54°26'2.0" N | 8°27'15.0" W | 
| Cliffony : | 
 | 1 m | 54°26'2.0" N | 8°27'15.0" W | 
| Cloghboley : | 
 | 1 m | 54°20'58.9" N | 8°36'21.0" W | 
| Clonnkeelaun : | 
 | 94 m | 54°9'38.9" N | 8°59'40.0" W | 
| Cloonacool : | 
 | 67 m | 54°6'6.8" N | 8°46'39.0" W | 
| Cloonagh : | 
 | 1 m | 54°22'10.9" N | 8°37'55.0" W | 
| Cloonahinshin : | 
 | 75 m | 54°4'30.0" N | 8°35'32.0" W | 
| Clooneagh : | 
 | 91 m | 54°0'7.9" N | 8°28'6.0" W | 
| Clooneen : | 
 | 81 m | 54°7'28.9" N | 8°27'58.0" W | 
| Cloongoonagh : | 
 | 55 m | 54°0'55.1" N | 8°52'11.0" W | 
| Cloonkeevy : | 
 | 75 m | 54°5'1.0" N | 8°33'51.0" W | 
| Cloonlaheen : | 
 | 81 m | 53°59'21.1" N | 8°31'36.0" W | 
| Cloonlaughil : | 
 | 71 m | 53°58'49.1" N | 8°48'59.0" W | 
| Cloonloogh : | 
 | 90 m | 53°58'26.0" N | 8°24'49.0" W | 
| Cloonycarney : | 
 | 43 m | 54°14'31.9" N | 9°0'2.0" W | 
| Cluid : | 
 | 76 m | 54°6'27.0" N | 8°32'41.0" W | 
| Colgagh : | 
 | 139 m | 54°17'10.0" N | 8°23'29.0" W | 
| Collooney : | 
 | 58 m | 54°10'59.9" N | 8°30'0.0" W | 
| Coola : | 
 | 78 m | 54°9'31.0" N | 8°22'10.0" W | 
| Coola Cross Roads : | 
 | 78 m | 54°9'31.0" N | 8°22'10.0" W | 
| Coolaney : | 
 | 74 m | 54°10'41.2" N | 8°35'59.0" W | 
| Cooleen : | 
 | 56 m | 54°1'31.1" N | 8°51'31.0" W | 
| Coolmeen : | 
 | 77 m | 54°4'22.1" N | 8°14'50.0" W | 
| Cooney : | 
 | 87 m | 54°12'6.8" N | 8°32'42.0" W | 
| Corbally : | 
 | 30 m | 54°9'56.9" N | 9°4'54.0" W | 
| Cornaleck : | 
 | 87 m | 54°7'19.9" N | 8°43'32.0" W | 
| Corray : | 
 | 72 m | 54°2'17.9" N | 8°52'24.0" W | 
| Corsallagh : | 
 | 67 m | 54°4'54.1" N | 8°47'10.0" W | 
| Creevykeel Cross Roads : | 
 | 1 m | 54°26'30.1" N | 8°26'4.0" W | 
| Cregg : | 
 | 1 m | 54°18'14.0" N | 8°30'46.0" W | 
| Cuffs Town : | 
 | 58 m | 54°14'8.9" N | 8°59'46.0" W | 
| Cuil Aine (Cúil Áine) : | 
 | 74 m | 54°10'41.2" N | 8°35'59.0" W | 
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