Cell phone coverage map for Iowa
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Darker areas mean the carrier covers more of that location.
Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Carrierlytics.
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Cell phone coverage rankings by network in Iowa
#1
T-Mobile
Coverage Score
81.5
In Iowa
- Overall
- 84.4%
- 4G LTE
- 84.3% avg. -92 dBm 4G LTE signal where 4G LTE coverage exists: avg. -92 dBm
- 5G
- 75.5% avg. -88 dBm 5G signal where 5G coverage exists: avg. -88 dBm
- Fast 5G
- 59.9% avg. -85 dBm Fast 5G signal where Fast 5G coverage exists: avg. -85 dBm
#2
Verizon
Coverage Score
64.9
In Iowa
- Overall
- 92.2%
- 4G LTE
- 92.1% avg. -93 dBm 4G LTE signal where 4G LTE coverage exists: avg. -93 dBm
- 5G
- 32.0% avg. -93 dBm 5G signal where 5G coverage exists: avg. -93 dBm
- Fast 5G
- 19.5% avg. -89 dBm Fast 5G signal where Fast 5G coverage exists: avg. -89 dBm
#3
AT&T
Coverage Score
41.7
In Iowa
- Overall
- 77.0%
- 4G LTE
- 76.6% avg. -109 dBm 4G LTE signal where 4G LTE coverage exists: avg. -109 dBm
- 5G
- 19.0% avg. -115 dBm 5G signal where 5G coverage exists: avg. -115 dBm
- Fast 5G
- 11.4% avg. -113 dBm Fast 5G signal where Fast 5G coverage exists: avg. -113 dBm
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Coverage by county in Iowa
Counties are shown for statewide comparison. Coverage percentages use land-area only coverage.
| County | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Adair County, IA | 97.3% 97.3% 34.8% 20.4% | 82.7% 82.7% 7.4% 5.4% | 73.8% 73.8% 58.9% 37.2% |
| Adams County, IA | 4.3% 0.0% 4.3% 0.2% | 84.4% 84.4% 0.0% 0.0% | 33.6% 33.6% 25.2% 12.7% |
| Allamakee County, IA | 79.7% 79.7% 4.2% 2.1% | 3.4% 3.4% 0.0% 0.0% | 27.6% 27.6% 17.6% 9.8% |
| Appanoose County, IA | 83.2% 83.2% 0.0% 0.0% | 43.4% 43.4% 0.0% 0.0% | 60.5% 60.5% 51.4% 37.4% |
| Audubon County, IA | 99.2% 99.2% 16.5% 9.3% | 32.2% 32.2% 0.1% 0.0% | 90.6% 90.6% 72.4% 49.6% |
| Benton County, IA | 98.3% 98.3% 5.3% 3.4% | 82.4% 82.2% 17.5% 10.9% | 97.9% 97.9% 94.6% 82.3% |
| Black Hawk County, IA | 100.0% 100.0% 67.3% 50.8% | 93.7% 93.7% 39.1% 22.3% | 97.2% 97.2% 92.1% 78.1% |
| Boone County, IA | 99.5% 99.5% 64.0% 40.4% | 88.2% 88.1% 9.6% 5.8% | 92.1% 91.8% 87.7% 70.2% |
| Bremer County, IA | 99.6% 99.6% 24.7% 18.2% | 57.4% 56.8% 27.6% 8.8% | 94.9% 94.9% 88.8% 77.1% |
| Buchanan County, IA | 99.0% 99.0% 32.8% 20.8% | 88.8% 88.7% 20.8% 7.3% | 97.4% 97.4% 92.8% 79.5% |
| Buena Vista County, IA | 98.7% 98.7% 20.8% 9.0% | 99.1% 98.7% 43.2% 28.6% | 97.8% 97.8% 91.4% 75.8% |
| Butler County, IA | 99.8% 99.8% 32.4% 20.7% | 56.3% 56.3% 15.6% 4.9% | 96.2% 96.2% 88.1% 74.4% |
| Calhoun County, IA | 99.9% 99.9% 42.8% 21.1% | 98.9% 98.9% 2.9% 2.0% | 96.7% 96.3% 91.3% 59.0% |
| Carroll County, IA | 100.0% 100.0% 50.6% 27.5% | 86.2% 86.1% 19.4% 15.6% | 87.7% 87.7% 74.4% 50.3% |
| Cass County, IA | 99.0% 99.0% 31.6% 21.3% | 90.7% 90.7% 0.2% 0.1% | 72.4% 72.4% 43.5% 31.1% |
| Cedar County, IA | 99.2% 99.2% 21.7% 12.9% | 79.6% 79.4% 9.8% 6.9% | 97.4% 97.4% 93.8% 84.6% |
| Cerro Gordo County, IA | 99.9% 99.9% 79.4% 50.6% | 98.6% 98.6% 0.3% 0.1% | 99.7% 99.7% 98.3% 90.1% |
| Cherokee County, IA | 97.7% 97.7% 15.4% 6.4% | 87.2% 85.1% 12.8% 4.9% | 91.2% 91.2% 82.0% 57.9% |
| Chickasaw County, IA | 97.8% 97.8% 32.4% 13.5% | 75.5% 75.5% 8.7% 5.3% | 96.1% 96.1% 90.9% 73.2% |
| Clarke County, IA | 97.0% 97.0% 10.2% 3.2% | 81.0% 81.0% 0.0% 0.0% | 71.9% 71.9% 56.8% 39.9% |
| Clay County, IA | 98.4% 98.4% 50.1% 27.5% | 97.1% 96.7% 46.6% 29.1% | 99.2% 99.2% 97.7% 91.2% |
| Clayton County, IA | 81.7% 81.7% 1.3% 0.3% | 3.6% 3.6% 0.3% 0.1% | 18.9% 18.9% 11.6% 6.6% |
| Clinton County, IA | 99.9% 99.9% 33.2% 16.6% | 55.9% 51.6% 28.9% 12.5% | 93.4% 93.4% 87.1% 74.9% |
| Crawford County, IA | 99.9% 99.9% 41.0% 26.5% | 69.5% 66.5% 13.1% 6.2% | 67.7% 67.7% 40.8% 20.2% |
| Dallas County, IA | 100.0% 100.0% 59.5% 37.9% | 98.3% 97.8% 47.9% 27.3% | 96.2% 96.2% 93.2% 86.1% |
| Davis County, IA | 71.8% 71.7% 10.7% 5.7% | 30.6% 30.6% 0.0% 0.0% | 73.0% 73.0% 64.8% 48.1% |
| Decatur County, IA | 93.3% 93.3% 1.9% 0.5% | 78.9% 78.9% 9.8% 9.0% | 58.9% 58.9% 45.2% 30.3% |
| Delaware County, IA | 94.0% 93.9% 43.7% 24.0% | 74.2% 74.1% 35.0% 18.8% | 85.5% 85.5% 74.2% 54.8% |
| Des Moines County, IA | 97.7% 97.7% 20.9% 12.4% | 81.2% 81.2% 36.3% 29.7% | 93.9% 93.9% 87.2% 74.7% |
| Dickinson County, IA | 99.3% 99.3% 65.8% 38.0% | 100.0% 100.0% 59.9% 26.1% | 98.9% 98.9% 92.2% 74.4% |
| Dubuque County, IA | 99.3% 99.3% 30.1% 22.1% | 88.4% 88.4% 13.3% 7.0% | 90.1% 90.1% 81.2% 67.4% |
| Emmet County, IA | 98.9% 98.9% 29.5% 9.5% | 99.9% 99.9% 40.9% 30.9% | 97.3% 97.3% 91.4% 72.5% |
| Fayette County, IA | 91.0% 91.0% 10.2% 4.3% | 9.4% 9.2% 0.5% 0.3% | 40.8% 40.8% 29.6% 18.7% |
| Floyd County, IA | 99.4% 99.4% 37.7% 24.7% | 81.5% 81.5% 43.8% 32.6% | 98.4% 98.4% 94.9% 80.6% |
| Franklin County, IA | 99.1% 99.1% 47.5% 20.2% | 89.8% 89.7% 9.7% 8.1% | 97.7% 97.7% 92.1% 74.5% |
| Fremont County, IA | 0.7% 0.0% 0.7% 0.6% | 87.7% 87.7% 19.3% 16.6% | 70.5% 70.5% 48.1% 36.1% |
| Greene County, IA | 99.1% 99.1% 11.1% 3.9% | 92.3% 92.3% 2.6% 1.4% | 96.0% 96.0% 90.0% 68.5% |
| Grundy County, IA | 99.8% 99.8% 47.0% 32.3% | 93.6% 93.6% 1.3% 0.1% | 98.5% 98.5% 95.3% 84.6% |
| Guthrie County, IA | 98.4% 98.4% 31.3% 18.4% | 74.6% 74.6% 5.8% 4.1% | 79.7% 79.7% 61.5% 41.6% |
| Hamilton County, IA | 99.0% 99.0% 56.4% 29.4% | 96.6% 96.6% 39.7% 30.3% | 97.3% 97.3% 94.9% 81.9% |
| Hancock County, IA | 99.1% 99.1% 45.9% 21.0% | 57.9% 57.9% 0.0% 0.0% | 99.8% 99.8% 99.1% 93.2% |
| Hardin County, IA | 99.0% 99.0% 40.6% 28.6% | 70.4% 70.1% 11.0% 4.1% | 96.5% 96.5% 91.6% 75.3% |
| Harrison County, IA | 98.9% 98.9% 43.0% 30.1% | 81.4% 80.8% 32.2% 25.7% | 90.4% 90.4% 76.6% 60.0% |
| Henry County, IA | 95.3% 95.3% 18.5% 8.9% | 73.5% 73.5% 22.6% 17.6% | 89.3% 89.3% 79.6% 66.8% |
| Howard County, IA | 99.1% 99.1% 29.1% 17.6% | 37.5% 31.1% 15.9% 14.3% | 96.7% 96.7% 89.8% 67.2% |
| Humboldt County, IA | 99.7% 99.7% 21.8% 9.4% | 99.6% 99.6% 0.2% 0.0% | 98.9% 98.9% 96.9% 83.7% |
| Ida County, IA | 98.4% 98.4% 23.3% 10.8% | 93.3% 93.3% 6.6% 3.7% | 77.5% 77.5% 60.9% 37.4% |
| Iowa County, IA | 93.7% 93.7% 13.3% 5.7% | 86.6% 86.5% 25.0% 13.0% | 91.7% 91.7% 81.6% 63.5% |
| Jackson County, IA | 97.1% 97.1% 10.8% 5.5% | 32.8% 32.7% 0.5% 0.1% | 73.9% 73.8% 54.8% 37.5% |
| Jasper County, IA | 98.0% 98.0% 19.9% 12.3% | 94.2% 94.1% 24.7% 10.4% | 95.9% 95.9% 84.9% 63.9% |
| Jefferson County, IA | 92.7% 92.7% 30.1% 13.8% | 84.9% 84.9% 2.4% 1.0% | 82.0% 82.0% 75.3% 60.3% |
| Johnson County, IA | 99.0% 99.0% 40.4% 26.8% | 92.5% 92.3% 35.8% 22.8% | 95.7% 95.7% 88.7% 73.5% |
| Jones County, IA | 95.1% 95.1% 28.2% 16.7% | 26.1% 26.0% 3.5% 1.6% | 82.1% 82.1% 72.2% 52.2% |
| Keokuk County, IA | 95.3% 95.2% 23.0% 14.2% | 32.2% 32.1% 3.6% 1.3% | 83.5% 83.5% 73.4% 55.8% |
| Kossuth County, IA | 100.0% 100.0% 23.9% 11.6% | 99.1% 99.1% 8.7% 3.4% | 98.7% 98.6% 96.3% 79.1% |
| Lee County, IA | 98.9% 98.9% 13.8% 8.0% | 36.1% 36.1% 3.8% 1.4% | 88.6% 88.6% 79.7% 65.5% |
| Linn County, IA | 99.9% 99.9% 50.5% 38.1% | 83.2% 82.6% 42.7% 23.7% | 95.1% 95.1% 91.1% 81.0% |
| Louisa County, IA | 97.0% 97.0% 34.5% 17.7% | 86.2% 86.1% 8.5% 5.1% | 93.7% 93.7% 86.2% 72.5% |
| Lucas County, IA | 89.2% 89.2% 5.3% 1.3% | 79.2% 79.2% 0.1% 0.1% | 45.6% 45.6% 34.2% 19.2% |
| Lyon County, IA | 100.0% 99.9% 34.3% 20.6% | 99.2% 99.2% 45.7% 33.4% | 96.1% 96.1% 88.7% 64.5% |
| Madison County, IA | 99.4% 99.4% 54.7% 32.7% | 87.4% 87.3% 3.8% 1.3% | 87.5% 87.5% 79.8% 63.7% |
| Mahaska County, IA | 96.7% 96.7% 31.2% 17.5% | 81.5% 81.5% 13.5% 5.1% | 90.5% 90.5% 80.4% 61.7% |
| Marion County, IA | 97.1% 97.1% 40.9% 21.0% | 90.7% 90.7% 26.9% 14.7% | 75.5% 75.5% 61.1% 43.5% |
| Marshall County, IA | 97.2% 97.2% 11.8% 6.5% | 89.9% 89.8% 39.6% 14.0% | 98.5% 98.5% 92.0% 76.5% |
| Mills County, IA | 7.7% 0.2% 7.5% 4.2% | 91.6% 91.6% 27.6% 19.7% | 82.2% 82.2% 62.7% 43.3% |
| Mitchell County, IA | 99.6% 99.6% 5.2% 1.7% | 28.4% 28.3% 1.2% 0.6% | 98.6% 98.6% 96.3% 84.2% |
| Monona County, IA | 98.7% 98.7% 57.2% 31.5% | 83.4% 78.1% 53.7% 34.2% | 82.8% 82.8% 72.2% 57.1% |
| Monroe County, IA | 89.6% 89.6% 1.0% 0.5% | 47.6% 47.6% 0.1% 0.0% | 49.0% 49.0% 39.6% 24.6% |
| Montgomery County, IA | 0.3% 0.1% 0.3% 0.0% | 86.4% 86.4% 0.8% 0.6% | 60.8% 60.8% 42.2% 23.6% |
| Muscatine County, IA | 99.1% 99.1% 43.6% 25.2% | 92.1% 92.1% 19.9% 13.2% | 93.7% 93.7% 88.1% 77.4% |
| O’Brien County, IA | 99.5% 99.5% 61.3% 40.2% | 98.9% 98.9% 35.2% 15.8% | 97.9% 97.9% 95.4% 85.1% |
| Osceola County, IA | 100.0% 100.0% 55.2% 25.0% | 99.6% 99.6% 45.6% 33.7% | 98.4% 98.4% 93.8% 76.6% |
| Page County, IA | N/A N/A N/A N/A | 74.6% 74.6% 0.1% 0.1% | 77.8% 77.8% 52.3% 30.0% |
| Palo Alto County, IA | 99.7% 99.7% 33.7% 11.8% | 99.8% 99.8% 3.8% 2.5% | 99.3% 99.3% 96.9% 81.3% |
| Plymouth County, IA | 98.7% 98.7% 14.0% 6.3% | 86.6% 86.4% 26.7% 13.8% | 89.0% 88.9% 81.0% 58.3% |
| Pocahontas County, IA | 99.8% 99.8% 51.2% 35.8% | 98.4% 98.4% 0.9% 0.7% | 96.7% 96.7% 89.3% 72.7% |
| Polk County, IA | 100.0% 100.0% 89.8% 78.5% | 99.5% 99.3% 73.3% 41.0% | 99.9% 99.9% 98.6% 93.7% |
| Pottawattamie County, IA | 99.6% 99.5% 65.4% 53.2% | 91.4% 90.2% 32.0% 20.6% | 95.0% 95.0% 83.8% 68.8% |
| Poweshiek County, IA | 95.1% 95.1% 23.8% 11.5% | 85.9% 85.8% 28.3% 13.0% | 92.6% 92.5% 83.8% 66.8% |
| Ringgold County, IA | 90.3% 90.3% 5.9% 4.7% | 83.2% 83.2% 3.6% 3.2% | 26.1% 26.1% 15.0% 3.8% |
| Sac County, IA | 100.0% 100.0% 43.2% 22.0% | 96.8% 96.8% 4.6% 3.1% | 97.5% 97.5% 87.6% 64.4% |
| Scott County, IA | 100.0% 100.0% 61.8% 44.4% | 93.1% 92.8% 55.7% 38.6% | 97.7% 97.7% 93.9% 84.1% |
| Shelby County, IA | 99.7% 99.7% 48.7% 31.1% | 55.4% 48.6% 21.5% 16.4% | 74.9% 74.9% 56.9% 36.2% |
| Sioux County, IA | 98.9% 98.9% 61.2% 41.0% | 98.8% 98.0% 67.0% 39.0% | 97.1% 97.1% 90.4% 71.6% |
| Story County, IA | 99.9% 99.9% 68.5% 52.0% | 97.7% 97.7% 16.7% 7.4% | 99.7% 99.7% 98.5% 93.8% |
| Tama County, IA | 97.0% 97.0% 22.8% 12.4% | 72.2% 71.9% 12.0% 7.3% | 97.5% 97.5% 92.4% 75.1% |
| Taylor County, IA | 0.0% 0.0% 0.0% 0.0% | 84.3% 84.3% 0.8% 0.7% | 38.9% 38.9% 24.7% 12.4% |
| Union County, IA | 96.9% 96.9% 24.4% 13.6% | 83.9% 83.9% 0.0% 0.0% | 73.0% 73.0% 58.7% 38.3% |
| Van Buren County, IA | 84.4% 84.4% 10.2% 6.3% | 15.9% 15.9% 0.0% 0.0% | 80.3% 80.3% 72.5% 56.0% |
| Wapello County, IA | 95.5% 95.5% 26.2% 15.8% | 73.9% 73.9% 31.6% 20.5% | 83.0% 83.0% 75.9% 57.5% |
| Warren County, IA | 99.7% 99.7% 58.1% 38.9% | 98.1% 98.1% 16.0% 7.2% | 81.9% 81.9% 71.8% 56.6% |
| Washington County, IA | 98.4% 98.4% 37.6% 27.7% | 81.9% 79.8% 30.0% 21.3% | 89.9% 89.9% 80.5% 67.3% |
| Wayne County, IA | 86.7% 86.7% 0.0% 0.0% | 75.2% 75.2% 0.0% 0.0% | 31.9% 31.9% 19.2% 5.4% |
| Webster County, IA | 99.8% 99.8% 60.1% 35.5% | 88.3% 88.2% 9.7% 4.0% | 93.9% 93.9% 82.0% 54.9% |
| Winnebago County, IA | 100.0% 100.0% 39.9% 22.8% | 49.4% 48.9% 4.7% 1.1% | 100.0% 100.0% 99.7% 95.5% |
| Winneshiek County, IA | 92.9% 92.9% 4.5% 1.9% | 25.2% 25.2% 0.0% 0.0% | 54.2% 54.2% 37.3% 19.5% |
| Woodbury County, IA | 97.6% 97.6% 47.2% 33.1% | 98.1% 98.0% 76.1% 48.6% | 69.7% 69.7% 61.1% 45.6% |
| Worth County, IA | 99.9% 99.9% 3.2% 0.0% | 97.8% 97.8% 23.9% 19.3% | 99.8% 99.8% 98.9% 93.7% |
| Wright County, IA | 99.4% 99.4% 51.7% 25.5% | 84.3% 84.3% 15.5% 9.8% | 98.8% 98.8% 96.9% 83.4% |
About The Coverage Data
Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of Iowa where that carrier has coverage.
If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.