| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Table Mound Mobile Home Park | city | Iowa | United States | 42.46 | -90.67 | 830 | |
| Tabor | city | Iowa | United States | 40.90 | -95.67 | 1204 | |
| Taintor | city | Iowa | United States | 41.50 | -92.74 | 898 | |
| Talleyrand | city | Iowa | United States | 41.30 | -91.97 | 830 | |
| Tallview Terrace Mobile Home Park | city | Iowa | United States | 42.52 | -96.36 | 1204 | |
| Talmage | city | Iowa | United States | 41.03 | -94.11 | 1092 | |
| Tama | city | Iowa | United States | 41.97 | -92.58 | 830 | |
| Tara | city | Iowa | United States | 42.50 | -94.30 | 1141 | |
| Tarkio City (historical) | city | Iowa | United States | 40.73 | -95.20 | 1072 | |
| Taylor | city | Iowa | United States | 41.27 | -95.52 | 1148 | |
| Taylorsville | city | Iowa | United States | 42.77 | -91.65 | 1217 | |
| Teds Mobile Home Park | city | Iowa | United States | 41.54 | -90.63 | 830 | |
| Teeds Grove | city | Iowa | United States | 42.01 | -90.25 | 830 | |
| Temple Hill | city | Iowa | United States | 42.23 | -90.98 | 856 | |
| Templeton | city | Iowa | United States | 41.92 | -94.94 | 1669 | |
| Tenmile | city | Iowa | United States | 41.95 | -90.33 | 830 | |
| Tennant | city | Iowa | United States | 41.59 | -95.44 | 1669 | |
| Tenville | city | Iowa | United States | 41.01 | -94.99 | 1108 | |
| Terrace Manor Mobile Home Court | city | Iowa | United States | 42.01 | -92.78 | 951 | |
| Terre Haute | city | Iowa | United States | 40.68 | -93.87 | 918 | |
| Terril | city | Iowa | United States | 43.31 | -94.97 | 1669 | |
| Thayer | city | Iowa | United States | 41.03 | -94.05 | 1112 | |
| The Meadows | city | Iowa | United States | 41.51 | -93.65 | 849 | |
| Thirty | city | Iowa | United States | 40.70 | -92.87 | 1020 | |
| Thomasville | city | Iowa | United States | 42.75 | -91.58 | 1138 | |
| Thompson | city | Iowa | United States | 43.37 | -93.77 | 1669 | |
| Thompson Corner | city | Iowa | United States | 43.27 | -91.23 | 1174 | |
| Thor | city | Iowa | United States | 42.69 | -94.05 | 1151 | |
| Thornburg | city | Iowa | United States | 41.45 | -92.34 | 912 | |
| Thornton | city | Iowa | United States | 42.94 | -93.38 | 1210 | |
| Thorpe | city | Iowa | United States | 42.57 | -91.45 | 1010 | |
| Thoten | city | Iowa | United States | 43.31 | -91.64 | 1164 | |
| Thurman | city | Iowa | United States | 40.82 | -95.75 | 971 | |
| Ticonic | city | Iowa | United States | 42.17 | -95.95 | 1082 | |
| Tiffin | city | Iowa | United States | 41.71 | -91.66 | 830 | |
| Tileville | city | Iowa | United States | 41.35 | -93.94 | 951 | |
| Tilton | city | Iowa | United States | 41.51 | -92.35 | 902 | |
| Timber Valley Mobile Home Park | city | Iowa | United States | 41.98 | -92.89 | 902 | |
| Tingley | city | Iowa | United States | 40.85 | -94.20 | 1669 | |
| Tioga | city | Iowa | United States | 41.30 | -92.42 | 862 | |
| Tipperary | city | Iowa | United States | 41.11 | -93.15 | 964 | |
| Tipton | city | Iowa | United States | 41.77 | -91.13 | 849 | |
| Tipton Mobile Home Park | city | Iowa | United States | 41.78 | -91.13 | 839 | |
| Titonka | city | Iowa | United States | 43.24 | -94.04 | 1184 | |
| Titu | city | Iowa | United States | 41.28 | -91.79 | 830 | |
| Toddville | city | Iowa | United States | 42.10 | -91.72 | 830 | |
| Toeterville | city | Iowa | United States | 43.44 | -92.89 | 1210 | |
| Togo (historical) | city | Iowa | United States | 40.62 | -93.89 | 1079 | |
| Toledo | city | Iowa | United States | 42.00 | -92.58 | 951 | |
| Toolesboro | city | Iowa | United States | 41.14 | -91.06 | 830 | |
| Toronto | city | Iowa | United States | 41.91 | -90.86 | 830 | |
| Tower Station (historical) | city | Iowa | United States | 41.03 | -92.87 | 830 | |
| Tower Terrace Mobile Home Park | city | Iowa | United States | 42.06 | -91.69 | 830 | |
| Tracy | city | Iowa | United States | 41.28 | -92.88 | 830 | |
| Traer | city | Iowa | United States | 42.19 | -92.47 | 951 | |
| Traxler (historical) | city | Iowa | United States | 41.03 | -91.58 | 830 | |
| Trenton | city | Iowa | United States | 41.06 | -91.64 | 830 | |
| Treynor | city | Iowa | United States | 41.23 | -95.61 | 1210 | |
| Triboji Beach | city | Iowa | United States | 43.43 | -95.17 | 1669 | |
| Tripoli | city | Iowa | United States | 42.81 | -92.26 | 1049 | |
| Troy | city | Iowa | United States | 40.75 | -92.20 | 849 | |
| Troy (historical) | city | Iowa | United States | 41.04 | -93.43 | 879 | |
| Troy Mills | city | Iowa | United States | 42.29 | -91.68 | 830 | |
| Truesdale | city | Iowa | United States | 42.73 | -95.18 | 1669 | |
| Truro | city | Iowa | United States | 41.21 | -93.85 | 1076 | |
| Turin | city | Iowa | United States | 42.02 | -95.97 | 1046 | |
| Turkey River | city | Iowa | United States | 42.71 | -91.03 | 830 | |
| Turner (historical) | city | Iowa | United States | 41.70 | -92.82 | 948 | |
| Tuskeego | city | Iowa | United States | 40.67 | -93.98 | 1145 | |
| Twilight Trailer Court | city | Iowa | United States | 43.00 | -96.07 | 1669 | |
| Twin Lakes | city | Iowa | United States | 42.48 | -94.64 | 1223 | |
| Twin Lakes Trailer Court | city | Iowa | United States | 42.47 | -94.64 | 1220 | |
| Twin Pine Mobile Home Park | city | Iowa | United States | 41.21 | -92.43 | 869 | |
| Twin Springs | city | Iowa | United States | 42.13 | -90.28 | 830 | |
| Twin Springs | city | Iowa | United States | 43.13 | -91.86 | 1177 | |
| Twin Springs | city | Iowa | United States | 42.52 | -90.84 | 843 | |
| Twin T Mobile Home Park | city | Iowa | United States | 42.46 | -90.69 | 830 | |
| Twin View Heights | city | Iowa | United States | 41.81 | -91.57 | 830 | |
| Tyrone | city | Iowa | United States | 40.98 | -92.95 | 843 |