| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Costi | city | India | 15.25 | 74.17 | 223 | 16894 | |
| Costi | city | Galati | Romania | 45.50 | 28.02 | 196 | 45375 |
| Costi | city | White Nile | Sudan | 13.17 | 32.67 | 1249 | 121948 |
| Costieni | city | Bacau | Romania | 46.43 | 26.73 | 1062 | 7399 |
| Costieni | city | Giurgiu | Romania | 44.32 | 25.92 | 288 | 12564 |
| Costieni | city | Galati | Romania | 45.53 | 27.55 | 29 | 7780 |
| Costieni | city | Buzau | Romania | 45.28 | 27.05 | 213 | 6974 |
| Costieni | city | Teleorman | Romania | 44.12 | 25.63 | 324 | 2618 |
| Costieni Mari | city | Buzau | Romania | 45.28 | 27.05 | 213 | 6974 |
| Costienii Mari | city | Buzau | Romania | 45.28 | 27.05 | 213 | 6974 |
| Costienii de Jos | city | Buzau | Romania | 45.30 | 27.08 | 190 | 11263 |
| Costiera | city | Sicilia | Italy | 37.72 | 12.63 | 337 | 17042 |
| Costiera di Mazara | city | Sicilia | Italy | 37.72 | 12.63 | 337 | 17042 |
| Costigan | city | Maine | United States | 45.01 | -68.64 | 127 | |
| Costigliole | city | Piemonte | Italy | 44.78 | 8.18 | 892 | 12832 |
| Costigliole Saluzzo | city | Piemonte | Italy | 44.57 | 7.48 | 1669 | 17431 |
| Costigliole d'Asti | city | Piemonte | Italy | 44.78 | 8.18 | 892 | 12832 |
| Costigliole d’Asti | city | Piemonte | Italy | 44.78 | 8.18 | 892 | 12832 |
| Costiglione Saluzzo | city | Piemonte | Italy | 44.57 | 7.48 | 1669 | 17431 |
| Costileva | city | Suceava | Romania | 47.88 | 25.30 | 2080 | 2237 |
| Costilhão | city | Viseu | Portugal | 40.93 | -7.90 | 2057 | 7263 |
| Costilla | city | Cesar | Colombia | 8.73 | -73.72 | 219 | 3428 |
| Costilla | city | Barinas | Venezuela | 8.39 | -70.61 | 859 | 9930 |
| Costilla | city | New Mexico | United States | 36.98 | -105.53 | 7814 | |
| Costilla (historical) | city | Alabama | United States | 31.11 | -85.89 | 229 | |
| Costilla de Vaca | city | Sucre | Venezuela | 10.31 | -63.25 | 160 | 113 |
| Costilla de la Montana | city | Guerrero | Mexico | 17.40 | -98.73 | 6709 | 11670 |
| Costillas | city | Cesar | Colombia | 8.73 | -73.72 | 219 | 3428 |
| Costin | city | Nebraska | United States | 41.86 | -103.73 | 4189 | |
| Costin | city | North Carolina | United States | 34.58 | -78.10 | 49 | |
| Costina | city | Manica | Mozambique | -19.56 | 33.53 | 370 | 4745 |
| Costina | city | Suceava | Romania | 47.70 | 26.13 | 971 | 8064 |
| Costineni | city | Bacau | Romania | 46.43 | 26.73 | 1062 | 7399 |
| Costinesti | city | Botosani | Romania | 47.80 | 26.47 | 839 | 6483 |
| Costineşti | city | Constanta | Romania | 43.95 | 28.63 | 3 | 8421 |
| Costinha | city | Paraiba | Brazil | -6.97 | -34.86 | 3 | 37723 |
| Costini | city | Maramures | Romania | 47.88 | 24.03 | 1243 | 7989 |
| Costino | city | Gaza | Mozambique | -23.89 | 33.66 | 167 | 225 |
| Costis | city | Caras-Severin | Romania | 45.03 | 22.42 | 2834 | 1643 |
| Costisa | city | Suceava | Romania | 47.92 | 25.90 | 1190 | 9259 |
| Costisa | city | Bacau | Romania | 46.18 | 27.22 | 830 | 7367 |
| Costisata | city | Dambovita | Romania | 45.17 | 25.55 | 1991 | 7822 |
| Costita | city | Arges | Romania | 45.20 | 25.00 | 1669 | 20659 |
| Costitucion de Apatzingan | city | Guanajuato | Mexico | 20.69 | -101.32 | 5869 | 69675 |
| Costitx | city | Illes Balears | Spain | 39.66 | 2.95 | 830 | 9303 |
| Costiugeni | city | Botosani | Romania | 47.68 | 27.03 | 830 | 6660 |
| Costiui | city | Maramures | Romania | 47.88 | 24.03 | 1243 | 7989 |
| Costiujeni | city | Chisinau | Moldova | 46.95 | 28.83 | 298 | 143910 |
| Costişa | city | Neamt | Romania | 46.75 | 26.65 | 830 | 15277 |
| Costişa | city | Vrancea | Romania | 46.10 | 27.37 | 291 | 5242 |
| Costişa de Sus | city | Vrancea | Romania | 46.10 | 27.38 | 396 | 5083 |
| Costiţa | city | Bacau | Romania | 46.45 | 26.87 | 830 | 11193 |