Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Trinity Chapel School | School | 99 | Freestone | 31 45 56 N | 095 58 52 W |
| Trinity Church | Church | 113 | Colorado | 29 38 03 N | 096 46 21 W |
| Trinity Church | Church | 1156 | El Paso | 31 45 44 N | 106 30 15 W |
| Trinity Church | Church | 1127 | El Paso | 31 45 54 N | 106 25 42 W |
| Trinity Church | Church | 171 | Falls | 31 27 04 N | 096 52 55 W |
| Trinity Church | Church | 133 | Fayette | 29 49 05 N | 096 58 45 W |
| Trinity Church | Church | 1011 | Floyd | 34 14 31 N | 101 31 15 W |
| Trinity Church | Church | 2 | Galveston | 29 17 41 N | 094 48 07 W |
| Trinity Church | Church | 2 | Galveston | 29 18 10 N | 094 47 32 W |
| Trinity Church | Church | 84 | Gregg | 32 24 46 N | 094 42 21 W |
| Trinity Church | Church | 49 | Harris | 30 00 44 N | 095 38 31 W |
| Trinity Church | Church | 65 | Harris | 30 03 07 N | 095 47 56 W |
| Trinity Church | Church | 15 | Harris | 29 44 25 N | 095 22 41 W |
| Trinity Church | Church | 7 | Jefferson | 30 03 41 N | 094 04 60 W |
| Trinity Church | Church | 6 | Jefferson | 30 05 28 N | 094 08 14 W |
| Trinity Church | Church | 7 | Jefferson | 30 03 42 N | 094 05 01 W |
| Trinity Church | Church | 60 | Jim Wells | 27 45 22 N | 098 03 42 W |
| Trinity Church | Church | 487 | Jones | 32 56 17 N | 099 47 12 W |
| Trinity Church | Church | 519 | Kerr | 30 03 46 N | 099 09 16 W |
| Trinity Church | Church | 98 | Marion | 32 48 46 N | 094 15 42 W |
| Trinity Church | Church | 149 | McLennan | 31 32 42 N | 097 09 27 W |
| Trinity Church | Church | 160 | McLennan | 31 33 23 N | 097 09 53 W |
| Trinity Church | Church | 1114 | Potter | 35 11 35 N | 101 51 23 W |
| Trinity Church | Church | 1116 | Randall | 35 10 39 N | 101 50 47 W |
| Trinity Church | Church | 85 | Robertson | 30 52 20 N | 096 39 39 W |
| Trinity Church | Church | 173 | Tarrant | 32 46 09 N | 097 23 21 W |
| Trinity Church | Church | 30 | Victoria | 28 48 31 N | 097 00 23 W |
| Trinity Church | Church | 179 | Williamson | 30 34 24 N | 097 25 45 W |
| Trinity Church of the Nazarene | Church | 1236 | El Paso | 31 51 47 N | 106 33 15 W |
| Trinity Church of the Nazarene | Church | 8 | Nueces | 27 42 15 N | 097 24 33 W |
| Trinity Community Medical Center of Brenham | Hospital | 123 | Washington | 30 08 45 N | 096 23 52 W |
| Trinity County | Civil | 81 | Trinity | 31 06 01 N | 095 13 01 W |
| Trinity County Park | Park | 98 | Trinity | 31 04 25 N | 095 09 48 W |
| Trinity Creek Mountain Creek Preserve Trail | Trail | 126 | Dallas | 32 47 10 N | 096 55 27 W |
| Trinity Early Childhood - Grape Creek | School | 599 | Tom Green | 31 33 31 N | 100 32 36 W |
| Trinity Early Childhood Center | School | 567 | Runnels | 31 26 55 N | 100 26 46 W |
| Trinity English Lutheran Church | Church | 136 | Dallas | 32 46 19 N | 096 45 53 W |
| Trinity Episcopal Church | Church | 273 | Burnet | 30 34 31 N | 098 16 04 W |
| Trinity Episcopal Church | Church | 149 | Cherokee | 31 57 23 N | 095 15 60 W |
| Trinity Episcopal Church | Church | 278 | Clay | 33 48 56 N | 098 11 14 W |
| Trinity Episcopal Church | Church | 169 | Dallas | 32 55 16 N | 096 47 10 W |
| Trinity Episcopal Church | Church | 458 | Erath | 32 05 30 N | 098 20 25 W |
| Trinity Episcopal Church | Church | 119 | Gregg | 32 29 58 N | 094 43 40 W |
| Trinity Episcopal Church | Church | 5 | Harris | 29 43 37 N | 095 00 06 W |
| Trinity Episcopal Church | Church | 119 | Harrison | 32 32 43 N | 094 22 17 W |
| Trinity Episcopal Church | Church | 34 | Hidalgo | 26 11 37 N | 098 11 09 W |
| Trinity Episcopal Church | Church | 20 | Jackson | 28 58 36 N | 096 38 40 W |
| Trinity Episcopal Church | Church | 519 | Kimble | 30 29 22 N | 099 46 20 W |
| Trinity Evangelical Free Church | Church | 6 | Harris | 29 35 45 N | 095 06 49 W |
| Trinity Fellowship Church | Church | 1171 | Deaf Smith | 34 49 51 N | 102 24 56 W |
| Trinity Fellowship Church | Church | 11 | Harris | 29 40 07 N | 095 18 26 W |
| Trinity Fellowship Church | Church | 143 | Smith | 32 22 04 N | 095 05 04 W |
| Trinity Fellowship Church | Church | 590 | Tom Green | 31 26 54 N | 100 29 17 W |
| Trinity Fellowship of Uvalde Church | Church | 283 | Uvalde | 29 13 31 N | 099 46 45 W |
| Trinity Gardens Baptist Church | Church | 16 | Harris | 29 49 12 N | 095 18 59 W |
| Trinity Gardens Park | Park | 17 | Harris | 29 49 24 N | 095 19 02 W |
| Trinity High School | School | 172 | Tarrant | 32 50 34 N | 097 06 01 W |
| Trinity Lutheran Church | Church | 194 | Bell | 31 03 59 N | 097 22 33 W |
| Trinity Lutheran Church | Church | 204 | Bosque | 31 46 59 N | 097 34 41 W |
| Trinity Lutheran Church | Church | 340 | Coryell | 31 07 04 N | 097 54 02 W |
| Trinity Lutheran Church | Church | 152 | Dallas | 32 48 51 N | 096 44 07 W |
| Trinity Lutheran Church | Church | 31 | Fort Bend | 29 33 11 N | 095 47 38 W |
| Trinity Lutheran Church | Church | 141 | Freestone | 31 43 17 N | 096 08 24 W |
| Trinity Lutheran Church | Church | 43 | Hidalgo | 26 13 07 N | 098 19 18 W |
| Trinity Lutheran Church | Church | 173 | Hunt | 33 14 50 N | 095 54 11 W |
| Trinity Lutheran Church | Church | 947 | Hutchinson | 35 39 50 N | 101 23 29 W |
| Trinity Lutheran Church | Church | 18 | Refugio | 28 19 18 N | 097 17 01 W |
| Trinity Lutheran Church | Church | 31 | Tom Green | 31 24 50 N | 100 27 49 W |
| Trinity Lutheran Church | Church | 280 | Uvalde | 29 13 14 N | 099 47 26 W |
| Trinity Lutheran Church | Church | 217 | Williamson | 30 30 41 N | 097 40 05 W |
| Trinity Lutheran Church | Church | 237 | Wise | 33 12 37 N | 097 45 29 W |
| Trinity Lutheran Church Vietamese Ministry | Church | 2 | Jefferson | 29 53 16 N | 093 55 18 W |
| Trinity Lutheran School | School | 31 | Tom Green | 31 24 55 N | 100 27 49 W |
| Trinity Luthern Church | Church | 393 | Baylor | 33 35 01 N | 099 15 41 W |
| Trinity Meadows Race Track Heliport | Airport | 255 | Parker | 32 44 47 N | 097 39 19 W |
| Trinity Medical Center | Hospital | 174 | Denton | 33 01 44 N | 096 53 08 W |
| Trinity Memorial Park | Cemetery | 806 | Howard | 32 09 27 N | 101 27 40 W |
| Trinity Mills | Populated Place | 137 | Dallas | 32 58 53 N | 096 55 39 W |
| Trinity Missionary Baptist Church | Church | 8 | Harris | 29 46 37 N | 095 10 41 W |
| Trinity Missionary Baptist Church | Church | 15 | Harris | 29 40 13 N | 095 22 24 W |
| Trinity Missionary Baptist Church | Church | 14 | Harris | 29 48 14 N | 095 19 42 W |
| Trinity Missionary Baptist Church | Church | 195 | Tarrant | 32 43 08 N | 097 16 47 W |
| Trinity Oil Field | Oilfield | 90 | Houston | 31 01 55 N | 095 29 07 W |
| Trinity Park | Park | 860 | Midland | 32 01 22 N | 102 07 60 W |
| Trinity Park | Park | 166 | Tarrant | 32 44 40 N | 097 21 12 W |
| Trinity Park | Populated Place | 162 | Collin | 33 05 16 N | 096 32 31 W |
| Trinity Pentecostal Church | Church | 8 | Harris | 29 35 34 N | 095 13 23 W |
| Trinity Presbyterian Church | Church | 103 | Bowie | 33 26 34 N | 094 04 58 W |
| Trinity Presbyterian Church | Church | 136 | Dallas | 32 46 01 N | 097 01 12 W |
| Trinity Presbyterian Church | Church | 211 | Denton | 33 14 05 N | 097 07 38 W |
| Trinity Presbyterian Church | Church | 186 | Denton | 33 03 40 N | 097 03 42 W |
| Trinity Presbyterian Church | Church | 167 | Denton | 33 05 31 N | 096 53 33 W |
| Trinity Presbyterian Church | Church | 35 | Harris | 29 50 49 N | 095 38 31 W |
| Trinity Presbyterian Church | Church | 32 | Midland | 31 59 53 N | 102 06 27 W |
| Trinity Presbyterian Church | Church | 180 | Tarrant | 32 35 11 N | 097 07 52 W |
| Trinity Presbyterianchurch | Church | 306 | Wichita | 33 52 00 N | 098 33 11 W |
| Trinity Protestant Episcopal Church | Church | 2 | Galveston | 29 18 11 N | 094 47 32 W |
| Trinity River | Stream | | Chambers | 29 44 35 N | 094 42 12 W |
| Trinity River Channel | Channel | 4 | Chambers | 29 33 25 N | 094 45 37 W |
| Trinity River Greenbelt Park | Park | 122 | Dallas | 32 45 40 N | 096 48 21 W |
| Trinity River Lake Estates | Populated Place | 15 | Liberty | 30 20 16 N | 094 47 16 W |
| Trinity River Loading and Landing | Locale | 61 | Houston | 31 21 34 N | 095 39 36 W |
| Trinity School | School | 87 | Fayette | 29 54 60 N | 096 54 60 W |
| Trinity School | School | 2 | Galveston | 29 18 08 N | 094 47 32 W |
| Trinity School | School | 2 | Jefferson | 29 53 15 N | 093 55 16 W |
| Trinity School | School | 153 | Lamar | 33 33 38 N | 095 32 21 W |
| Trinity School | School | 141 | Lee | 30 18 59 N | 097 03 34 W |
| Trinity School | School | 10 | Nueces | 27 45 55 N | 097 24 06 W |
| Trinity School | School | 174 | Smith | 32 20 16 N | 095 18 24 W |
| Trinity School | School | 566 | Tom Green | 31 26 53 N | 100 26 43 W |