| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Coal City | city | Iowa | United States | 40.60 | -92.72 | 830 | |
| Coal Creek | city | Iowa | United States | 41.44 | -92.39 | 853 | |
| Coal Siding (historical) | city | Iowa | United States | 41.67 | -93.06 | 846 | |
| Coal Valley | city | Iowa | United States | 42.03 | -93.95 | 898 | |
| Coalville | city | Iowa | United States | 42.45 | -94.13 | 1102 | |
| Coburg | city | Iowa | United States | 40.92 | -95.26 | 1151 | |
| Coggon | city | Iowa | United States | 42.28 | -91.53 | 935 | |
| Coin | city | Iowa | United States | 40.65 | -95.23 | 1026 | |
| Colesburg | city | Iowa | United States | 42.64 | -91.20 | 1148 | |
| Colfax | city | Iowa | United States | 41.68 | -93.25 | 931 | |
| College Springs | city | Iowa | United States | 40.62 | -95.12 | 1099 | |
| Collett | city | Iowa | United States | 40.91 | -91.98 | 830 | |
| Collins | city | Iowa | United States | 41.90 | -93.31 | 1007 | |
| Colo | city | Iowa | United States | 42.02 | -93.32 | 1040 | |
| Colonial Estates Mobile Home Park | city | Iowa | United States | 41.93 | -91.41 | 872 | |
| Colonial Terrace Mobile Home Park | city | Iowa | United States | 41.32 | -93.08 | 849 | |
| Columbia | city | Iowa | United States | 41.18 | -93.15 | 925 | |
| Columbus City | city | Iowa | United States | 41.26 | -91.37 | 830 | |
| Columbus Junction | city | Iowa | United States | 41.28 | -91.36 | 830 | |
| Colwell | city | Iowa | United States | 43.16 | -92.59 | 1148 | |
| Commerce | city | Iowa | United States | 41.54 | -93.76 | 830 | |
| Communia | city | Iowa | United States | 42.79 | -91.36 | 830 | |
| Competine | city | Iowa | United States | 41.12 | -92.23 | 830 | |
| Conesville | city | Iowa | United States | 41.38 | -91.35 | 830 | |
| Confidence | city | Iowa | United States | 40.86 | -93.13 | 1023 | |
| Conger | city | Iowa | United States | 41.35 | -93.76 | 843 | |
| Congers Mobile Home Park | city | Iowa | United States | 40.81 | -91.13 | 830 | |
| Conover | city | Iowa | United States | 43.22 | -91.90 | 1669 | |
| Conrad | city | Iowa | United States | 42.22 | -92.87 | 1003 | |
| Conroy | city | Iowa | United States | 41.73 | -92.00 | 892 | |
| Consol | city | Iowa | United States | 41.07 | -93.00 | 872 | |
| Conway | city | Iowa | United States | 40.75 | -94.62 | 1253 | |
| Cool | city | Iowa | United States | 41.22 | -93.58 | 951 | |
| Coon Rapids | city | Iowa | United States | 41.87 | -94.68 | 1151 | |
| Cooper | city | Iowa | United States | 41.92 | -94.34 | 1082 | |
| Coppock | city | Iowa | United States | 41.16 | -91.71 | 830 | |
| Coral Trailer Park | city | Iowa | United States | 41.67 | -91.58 | 830 | |
| Coralville | city | Iowa | United States | 41.68 | -91.58 | 830 | |
| Cordova | city | Iowa | United States | 41.42 | -93.10 | 830 | |
| Corley | city | Iowa | United States | 41.58 | -95.33 | 1177 | |
| Cornelia | city | Iowa | United States | 42.79 | -93.68 | 1220 | |
| Cornell | city | Iowa | United States | 42.94 | -95.14 | 1669 | |
| Corning | city | Iowa | United States | 40.99 | -94.74 | 1141 | |
| Correctionville | city | Iowa | United States | 42.47 | -95.79 | 1131 | |
| Corwith | city | Iowa | United States | 42.99 | -93.96 | 1167 | |
| Corydon | city | Iowa | United States | 40.76 | -93.32 | 1056 | |
| Corydon (historical) | city | Iowa | United States | 41.75 | -93.69 | 951 | |
| Cosgrove | city | Iowa | United States | 41.64 | -91.74 | 830 | |
| Coster | city | Iowa | United States | 42.67 | -92.71 | 1000 | |
| Cottage Hill | city | Iowa | United States | 42.59 | -90.91 | 977 | |
| Cotter | city | Iowa | United States | 41.29 | -91.46 | 830 | |
| Cottonville | city | Iowa | United States | 42.24 | -90.60 | 951 | |
| Cou Falls | city | Iowa | United States | 41.82 | -91.67 | 830 | |
| Coulter | city | Iowa | United States | 42.74 | -93.37 | 1236 | |
| Council Bluffs | city | Iowa | United States | 41.26 | -95.86 | 977 | |
| Country Aire Home Park | city | Iowa | United States | 42.00 | -91.87 | 908 | |
| Country Aire Mobile Home Park | city | Iowa | United States | 42.03 | -93.98 | 1023 | |
| Country Court Mobile Home Park | city | Iowa | United States | 41.05 | -94.38 | 1669 | |
| Country Estate Village | city | Iowa | United States | 41.62 | -93.55 | 830 | |
| Country Estates Mobile Home Park | city | Iowa | United States | 41.75 | -90.54 | 830 | |
| Country Estates Mobile Home Park | city | Iowa | United States | 41.22 | -95.87 | 967 | |
| Country Living Mobile Home Park | city | Iowa | United States | 41.68 | -93.51 | 951 | |
| Country View Mobile Home Park | city | Iowa | United States | 42.01 | -95.33 | 1187 | |
| Country Villa Mobile Home Park | city | Iowa | United States | 43.13 | -95.11 | 1669 | |
| Countryside Mobile Home Court | city | Iowa | United States | 40.96 | -91.56 | 830 | |
| Covington | city | Iowa | United States | 42.01 | -91.76 | 830 |