The Des Moines-Ames, IA designated market area (DMA) is a U.S. television market serving the people in the state of Iowa. It is the 67th biggest media market by size in the United States, with a total population of 480,550 TV households as of the 2024-2025 television season. The Des Moines-Ames DMA comprises 35 counties, namely, Adair, Adams, Appanoose, Audubon, Boone, Calhoun, Carroll, Clarke, Dallas, Decatur, Franklin, Greene, Guthrie, Hamilton, Hardin, Humboldt, Jasper, Kossuth, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Pocahontas, Polk, Poweshiek, Ringgold, Story, Taylor, Union, Warren, Wayne, Webster, and Wright, IA.
| Season | Rank | Share | TV Homes | Change |
|---|---|---|---|---|
| 2024-2025 | 67 | 0.383% | 480,550 | -0.39% |
| 2023-2024 | 67 | 0.387% | 482,450 | +2.15% |
| 2022-2023 | 68 | 0.382% | 472,310 | +0.92% |
| 2021-2022 | 67 | 0.383% | 467,990 | +2.40% |
| 2020-2021 | 68 | 0.378% | 457,040 | +16.2% |
| 2019-2020 | 68 | 0.368% | 393,470 | +2.58% |
| 2018-2019 | 75 | 0.348% | 383,590 | -7.80% |
| 2017-2018 | 68 | 0.371% | 416,020 | -4.13% |
| 2016-2017 | 69 | 0.378% | 433,950 | +1.81% |
| 2015-2016 | 72 | 0.376% | 426,240 | -0.45% |
| 2014-2015 | 72 | 0.376% | 428,150 | -1.46% |
| 2013-2014 | 72 | 0.375% | 434,500 | +1.55% |
| 2012-2013 | 72 | 0.375% | 427,860 | -0.80% |
| 2011-2012 | 72 | 0.376% | 431,300 | -0.35% |
| 2010-2011 | 73 | 0.373% | 432,820 | +0.12% |
| 2009-2010 | 72 | 0.376% | 432,310 | -0.02% |
| 2008-2009 | 71 | 0.378% | 432,410 | +1.56% |
| 2007-2008 | 71 | 0.378% | 425,760 | +1.88% |
| 2006-2007 | 73 | 0.375% | 417,900 | +1.04% |
| 2005-2006 | 73 | 0.375% | 413,590 | +0.33% |