| GeoNames Home | Postal Codes | Download / Webservice | About |
| Name | Population | Latitude/Longitude | |
|---|---|---|---|
| 1 | Des Moines | 193,180 | 41.601 / -93.609 |
| 2 | West Cedar Rapids | 122,945 | 41.958 / -91.669 |
| 3 | Cedar Rapids | 120,758 | 42.008 / -91.644 |
| 4 | Davenport | 96,930 | 41.524 / -90.578 |
| 5 | Sioux City | 83,248 | 42.5 / -96.4 |
| 6 | Waterloo | 65,836 | 42.493 / -92.343 |
| 7 | Iowa City | 64,170 | 41.661 / -91.53 |
| 8 | Council Bluffs | 58,764 | 41.262 / -95.861 |
| 9 | Dubuque | 57,185 | 42.501 / -90.665 |
| 10 | Ames | 56,606 | 42.035 / -93.62 |
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