| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cabanga | city | Alajuela | Costa Rica | 10.96 | -84.93 | 104 | 799 |
| Cabanga | city | Alajuela | Costa Rica | 10.61 | -84.85 | 1079 | 2255 |
| Cabeza de Leon | city | Alajuela | Costa Rica | 10.95 | -84.98 | 124 | 954 |
| Cabro | city | Alajuela | Costa Rica | 11.05 | -84.66 | 95 | 1217 |
| Cachito | city | Alajuela | Costa Rica | 11.04 | -84.64 | 104 | 1336 |
| Callao | city | Alajuela | Costa Rica | 9.99 | -84.41 | 2509 | 26204 |
| Camibar | city | Alajuela | Costa Rica | 10.93 | -84.69 | 157 | 2086 |
| Canalete | city | Alajuela | Costa Rica | 10.84 | -85.04 | 246 | 1490 |
| Candelaria | city | Alajuela | Costa Rica | 10.03 | -84.42 | 3349 | 51016 |
| Candelaria | city | Alajuela | Costa Rica | 10.10 | -84.40 | 3625 | 59879 |
| Cano Negro | city | Alajuela | Costa Rica | 10.52 | -84.42 | 196 | 4321 |
| Canoas | city | Alajuela | Costa Rica | 10.03 | -84.20 | 3349 | 92715 |
| Canuela | city | Alajuela | Costa Rica | 10.15 | -84.40 | 5029 | 25480 |
| Cariblanco | city | Alajuela | Costa Rica | 10.27 | -84.18 | 2854 | 21633 |
| Cariblanco | city | Alajuela | Costa Rica | 10.41 | -84.41 | 1003 | 6915 |
| Carmen | city | Alajuela | Costa Rica | 10.32 | -84.20 | 1669 | 12214 |
| Carrera Buena | city | Alajuela | Costa Rica | 10.10 | -84.64 | 1896 | 4177 |
| Carrillos | city | Alajuela | Costa Rica | 10.03 | -84.27 | 2788 | 70471 |
| Carrizal | city | Alajuela | Costa Rica | 10.36 | -84.20 | 1112 | 10147 |
| Carrizal | city | Alajuela | Costa Rica | 10.08 | -84.17 | 5029 | 77001 |
| Cartagos | city | Alajuela | Costa Rica | 10.92 | -85.17 | 173 | 12633 |
| Casa Quemada | city | Alajuela | Costa Rica | 10.94 | -84.91 | 104 | 1022 |
| Casa Vieja | city | Alajuela | Costa Rica | 10.18 | -84.35 | 6709 | 13384 |
| Cascajal | city | Alajuela | Costa Rica | 9.90 | -84.63 | 357 | 10248 |
| Castro | city | Alajuela | Costa Rica | 10.37 | -84.52 | 830 | 6952 |
| Cataluña | city | Alajuela | Costa Rica | 10.03 | -84.32 | 2572 | 62044 |
| Catarata | city | Alajuela | Costa Rica | 10.09 | -84.51 | 3349 | 34751 |
| Caño Ciego | city | Alajuela | Costa Rica | 10.77 | -84.77 | 134 | 2086 |
| Caño Negro | city | Alajuela | Costa Rica | 10.89 | -84.79 | 124 | 2086 |
| Cebadilla | city | Alajuela | Costa Rica | 9.96 | -84.34 | 1873 | 49038 |
| Cedral | city | Alajuela | Costa Rica | 10.13 | -84.60 | 4189 | 3129 |
| Cedral | city | Alajuela | Costa Rica | 10.38 | -84.44 | 1669 | 13543 |
| Cedral Norte | city | Alajuela | Costa Rica | 10.38 | -84.44 | 1669 | 13543 |
| Cedro | city | Alajuela | Costa Rica | 10.08 | -84.28 | 3425 | 58270 |
| Ceiba | city | Alajuela | Costa Rica | 9.90 | -84.60 | 830 | 10636 |
| Cerrillal | city | Alajuela | Costa Rica | 10.10 | -84.19 | 5029 | 73125 |
| Cerrillos | city | Alajuela | Costa Rica | 10.03 | -84.27 | 2857 | 70471 |
| Chachagua | city | Alajuela | Costa Rica | 10.41 | -84.60 | 843 | 3574 |
| Chambacu | city | Alajuela | Costa Rica | 10.56 | -84.36 | 190 | 4321 |
| Chaparral | city | Alajuela | Costa Rica | 10.11 | -84.44 | 3349 | 56650 |
| Chaparrón | city | Alajuela | Costa Rica | 10.56 | -84.20 | 190 | 4870 |
| Chayote | city | Alajuela | Costa Rica | 10.18 | -84.35 | 6709 | 13384 |
| Chiles | city | Alajuela | Costa Rica | 10.40 | -84.34 | 1046 | 4337 |
| Cinchona | city | Alajuela | Costa Rica | 10.22 | -84.17 | 4189 | 37137 |
| Cinco Esquinas | city | Alajuela | Costa Rica | 10.10 | -84.17 | 5114 | 71193 |
| Cirrí | city | Alajuela | Costa Rica | 10.12 | -84.37 | 3625 | 49428 |
| Cirrí Norte | city | Alajuela | Costa Rica | 10.12 | -84.37 | 3625 | 49428 |
| Ciruelas | city | Alajuela | Costa Rica | 9.98 | -84.26 | 2624 | 77475 |
| Ciudad Quesada | city | Alajuela | Costa Rica | 10.32 | -84.43 | 2509 | 23894 |
| Coco | city | Alajuela | Costa Rica | 9.99 | -84.22 | 2811 | 84417 |
| Colonia | city | Alajuela | Costa Rica | 10.30 | -84.25 | 2621 | 7223 |
| Colonia Agrícola del Toro | city | Alajuela | Costa Rica | 10.30 | -84.25 | 2621 | 7223 |
| Colonia Dos Ríos | city | Alajuela | Costa Rica | 10.90 | -85.38 | 1768 | 1329 |
| Colonia Mayorga | city | Alajuela | Costa Rica | 10.90 | -85.38 | 1768 | 1329 |
| Colonia Palmarena | city | Alajuela | Costa Rica | 10.25 | -84.56 | 2086 | 3207 |
| Colonia del Toro | city | Alajuela | Costa Rica | 10.30 | -84.25 | 2621 | 7223 |
| Colón | city | Alajuela | Costa Rica | 10.31 | -84.41 | 3398 | 19529 |
| Concepcion | city | Alajuela | Costa Rica | 10.03 | -84.42 | 3349 | 51016 |
| Concepción | city | Alajuela | Costa Rica | 9.94 | -84.47 | 1669 | 6474 |
| Concepción | city | Alajuela | Costa Rica | 10.09 | -84.41 | 3681 | 68579 |
| Concepción | city | Alajuela | Costa Rica | 9.97 | -84.36 | 1669 | 42816 |
| Concepción | city | Alajuela | Costa Rica | 10.12 | -84.44 | 3474 | 49911 |
| Concordia | city | Alajuela | Costa Rica | 10.12 | -84.16 | 5869 | 65368 |
| Constancia | city | Alajuela | Costa Rica | 10.05 | -84.50 | 4189 | 28400 |
| Cooper | city | Alajuela | Costa Rica | 10.43 | -84.35 | 830 | 4321 |
| Corazón de Jesús | city | Alajuela | Costa Rica | 10.34 | -84.17 | 1167 | 10579 |
| Corohado | city | Alajuela | Costa Rica | 10.40 | -84.50 | 262 | 6454 |
| Coronado | city | Alajuela | Costa Rica | 10.40 | -84.50 | 262 | 6454 |
| Corrales | city | Alajuela | Costa Rica | 10.11 | -84.40 | 3569 | 54939 |
| Corrales | city | Alajuela | Costa Rica | 10.77 | -84.68 | 173 | 2086 |
| Cote | city | Alajuela | Costa Rica | 10.58 | -84.92 | 2509 | 2620 |
| Coyol | city | Alajuela | Costa Rica | 10.00 | -84.26 | 2703 | 76620 |
| Coyolar | city | Alajuela | Costa Rica | 9.90 | -84.56 | 830 | 9984 |
| Crucero | city | Alajuela | Costa Rica | 10.34 | -84.23 | 1791 | 7624 |
| Cruz | city | Alajuela | Costa Rica | 10.96 | -85.01 | 124 | 1019 |
| Cruz Norte | city | Alajuela | Costa Rica | 10.98 | -84.65 | 62 | 2086 |
| Cuatro Bocas | city | Alajuela | Costa Rica | 10.91 | -85.19 | 196 | 6030 |
| Cuatro Esquinas | city | Alajuela | Costa Rica | 10.45 | -84.55 | 262 | 4089 |
| Cucaracha | city | Alajuela | Costa Rica | 10.63 | -84.76 | 830 | 2890 |
| Cuesta Colorada | city | Alajuela | Costa Rica | 10.01 | -84.27 | 2683 | 74087 |