| Rank | City | 2015 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Des Moines | 209,220 | 0.7% |
| 2 | Cedar Rapids | 129,195 | 0.6% |
| 3 | Davenport | 102,448 | 0.7% |
| 4 | Sioux City | 82,517 | -0.1% |
| 5 | Iowa City | 73,415 | 2.0% |
| 6 | Waterloo | 68,364 | -0.0% |
| 7 | West Des Moines | 63,325 | 2.8% |
| 8 | Ames | 63,266 | 1.8% |
| 9 | Council Bluffs | 62,245 | 0.0% |
| 10 | Dubuque | 58,436 | 0.3% |
| 11 | Ankeny | 53,801 | 4.2% |
| 12 | Urbandale | 43,150 | 2.3% |
| 13 | Cedar Falls | 40,859 | 1.0% |
| 14 | Marion | 36,774 | 1.4% |
| 15 | Bettendorf | 35,122 | 1.4% |
| 16 | Marshalltown | 27,727 | 0.2% |
| 17 | Mason City | 27,458 | -0.6% |
| 18 | Clinton | 26,246 | -0.6% |
| 19 | Burlington | 25,539 | -0.1% |
| 20 | Ottumwa | 24,682 | -0.3% |
| 21 | Fort Dodge | 24,594 | -0.6% |
| 22 | Muscatine | 23,888 | 1.1% |
| 23 | Johnston | 20,359 | 4.2% |
| 24 | Coralville | 20,349 | 1.9% |
| 25 | Waukee | 17,705 | 6.4% |
| 26 | Clive | 17,052 | 2.5% |
| 27 | Altoona | 16,105 | 2.6% |
| 28 | North Liberty | 15,386 | 3.6% |
| 29 | Indianola | 15,305 | 0.9% |
| 30 | Newton | 15,150 | -0.2% |
| 31 | Boone | 12,633 | -0.1% |
| 32 | Oskaloosa | 11,541 | 0.2% |
| 33 | Spencer | 11,206 | -0.1% |
| 34 | Storm Lake | 10,895 | 0.7% |
| 35 | Fort Madison | 10,764 | -0.7% |
| 36 | Keokuk | 10,692 | -0.2% |
| 37 | Pella | 10,337 | -0.0% |
| 38 | Waverly | 10,106 | 0.6% |
| 39 | Carroll | 10,007 | -0.2% |
| 40 | Norwalk | 9,859 | 2.5% |
| 41 | Grimes | 9,786 | 4.4% |
| 42 | Le Mars | 9,764 | -0.2% |
| 43 | Fairfield | 9,750 | 0.7% |
| 44 | Pleasant Hill | 9,159 | 1.0% |
| 45 | Grinnell | 9,069 | -0.4% |
| 46 | Mount Pleasant | 8,647 | -0.1% |
| 47 | Denison | 8,390 | 0.3% |
| 48 | Perry | 8,151 | 1.4% |
| 49 | Decorah | 7,957 | -0.5% |
| 50 | Creston | 7,839 | 0.0% |
| 51 | Webster City | 7,788 | -0.9% |
| 52 | Clear Lake | 7,682 | -0.3% |
| 53 | Charles City | 7,513 | -0.5% |
| 54 | Sioux Center | 7,389 | 1.2% |
| 55 | Washington | 7,349 | 0.3% |
| 56 | Knoxville | 7,244 | -0.2% |
| 57 | Hiawatha | 7,157 | 0.5% |
| 58 | Atlantic | 6,842 | -1.0% |
| 59 | Nevada | 6,779 | -0.1% |
| 60 | Oelwein | 6,181 | -0.9% |
| 61 | Eldridge | 6,162 | 2.2% |
| 62 | Orange City | 6,151 | 0.6% |
| 63 | Estherville | 6,121 | -1.0% |
| 64 | Maquoketa | 6,012 | -0.5% |
| 65 | Independence | 5,986 | 0.1% |
| 66 | Red Oak | 5,573 | -0.7% |
| 67 | Algona | 5,479 | -0.4% |
| 68 | Centerville | 5,433 | -0.4% |
| 69 | Anamosa | 5,425 | -0.5% |
| 70 | Clarinda | 5,362 | -1.0% |
| 71 | De Witt | 5,253 | -0.3% |
| 72 | Glenwood | 5,242 | -0.1% |
| 73 | Iowa Falls | 5,173 | -0.3% |
| 74 | Asbury | 5,171 | 5.5% |
| 75 | Vinton | 5,159 | -0.5% |
| 76 | Winterset | 5,141 | -0.2% |
| 77 | Cherokee | 5,139 | -0.5% |
| 78 | Sheldon | 5,106 | -0.4% |
| 79 | Manchester | 5,087 | -0.4% |
| 80 | Shenandoah | 5,032 | -0.6% |
| 81 | Harlan | 5,013 | -0.5% |
| 82 | Osceola | 4,949 | 0.1% |
| 83 | Spirit Lake | 4,945 | 0.5% |
| 84 | Windsor Heights | 4,875 | 0.1% |
| 85 | Bondurant | 4,806 | 5.6% |
| 86 | Evansdale | 4,793 | 0.2% |
| 87 | Humboldt | 4,625 | -0.3% |
| 88 | Mount Vernon | 4,522 | 0.1% |
| 89 | Sergeant Bluff | 4,417 | 1.1% |
| 90 | Camanche | 4,358 | -0.5% |
| 91 | Hampton | 4,343 | -0.7% |
| 92 | Jefferson | 4,276 | -0.4% |
| 93 | Chariton | 4,227 | -0.5% |
| 94 | Polk City | 4,177 | 5.1% |
| 95 | Adel | 4,171 | 3.2% |
| 96 | Dyersville | 4,149 | 0.6% |
| 97 | Carlisle | 4,098 | 1.4% |
| 98 | Forest City | 3,982 | -1.0% |
| 99 | Le Claire | 3,929 | 1.1% |
| 100 | Cresco | 3,849 | -0.1% |
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