Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Southeast Rim Keyhole | Arch | 2063 | Brewster | 29 14 11 N | 103 16 49 W |
| Southeast River Windmill | Locale | 681 | Motley | 33 51 41 N | 100 35 21 W |
| Southeast School | School | 650 | Nolan | 32 27 34 N | 100 23 25 W |
| Southeast School | School | 714 | Scurry | 32 42 22 N | 100 53 29 W |
| Southeast Tank | Reservoir | 210 | Zavala | 28 52 25 N | 099 53 32 W |
| Southeast Tomball Oil Field | Oilfield | 44 | Harris | 30 02 40 N | 095 33 12 W |
| Southeast Well | Well | 1288 | Hartley | 35 55 31 N | 102 52 55 W |
| Southeast Windmill | Locale | 907 | Ector | 31 56 02 N | 102 19 50 W |
| Southeast Windmill | Locale | 1223 | Hartley | 35 43 42 N | 102 48 51 W |
| Southeast Windmill | Locale | 1065 | Oldham | 35 31 19 N | 102 42 29 W |
| Southeast Windmill | Locale | 916 | Roberts | 35 43 50 N | 101 03 60 W |
| Southeast Yeager Tank | Reservoir | 131 | La Salle | 28 17 36 N | 098 55 16 W |
| Southeastern Helicopters Heliport | Airport | 1 | Cameron | 26 08 50 N | 097 10 26 W |
| Southerland Canyon | Valley | | Stonewall | 33 23 39 N | 100 23 30 W |
| Southerland Park School | School | 6 | Jefferson | 30 03 13 N | 094 06 17 W |
| Southerland School | School | 6 | Jefferson | 30 03 11 N | 094 06 15 W |
| Southern Bible College | School | 11 | Harris | 29 49 09 N | 095 14 20 W |
| Southern Breeze Colonia | Populated Place | 21 | Hidalgo | 26 17 43 N | 098 03 15 W |
| Southern Congregational Methodist Church | Church | 6 | Harris | 29 43 09 N | 094 58 48 W |
| Southern Crest Pentecostal Church | Church | 205 | Dallas | 32 43 41 N | 096 53 29 W |
| Southern Hills Baptist Church | Church | 313 | Coryell | 31 05 05 N | 097 53 15 W |
| Southern Hills Baptist Church | Church | 275 | Coryell | 31 14 12 N | 097 54 35 W |
| Southern Hills Baptist Church | Church | 533 | Taylor | 32 24 50 N | 099 44 38 W |
| Southern Hills Church of Christ | Church | 138 | Dallas | 32 43 38 N | 096 42 11 W |
| Southern Hills Park | Park | 296 | Wichita | 33 52 24 N | 098 29 11 W |
| Southern Hotel | Building | 315 | Llano | 30 45 02 N | 098 40 39 W |
| Southern Loop Trail | Trail | 174 | Bastrop | 30 08 28 N | 097 27 33 W |
| Southern Methodist University | School | 184 | Dallas | 32 50 42 N | 096 47 03 W |
| Southern Pacific Depot Historic District | Locale | 206 | Bexar | 29 25 26 N | 098 28 34 W |
| Southern Pacific Hospital | Hospital | 15 | Harris | 29 46 36 N | 095 21 54 W |
| Southern Pacific Railroad Depot | Locale | 83 | Nacogdoches | 31 36 19 N | 094 39 33 W |
| Southern Pacific Railroad Freight Depot | Locale | 99 | Washington | 30 09 58 N | 096 23 47 W |
| Southern Pacific Railroad Guadalupe Bridge | Bridge | 10 | Victoria | 28 47 23 N | 097 00 40 W |
| Southern Pacific Railroad Passenger Depot | Locale | 9 | Cameron | 25 54 28 N | 097 29 58 W |
| Southern Pacific Railroad Passenger Station | Locale | 202 | Bexar | 29 25 15 N | 098 28 42 W |
| Southern Pacific Station | Locale | 6 | Jefferson | 30 04 59 N | 094 06 08 W |
| Southern Valley Estates Colonia | Populated Place | 18 | Hidalgo | 26 08 29 N | 097 52 33 W |
| Southfork Estates Colonia | Populated Place | 28 | Hidalgo | 26 05 47 N | 098 11 07 W |
| Southgate Elementary School | School | 164 | Dallas | 32 52 05 N | 096 38 20 W |
| Southgate School | School | 9 | Nueces | 27 47 31 N | 097 24 45 W |
| Southgate-Lewis House | Building | 167 | Travis | 30 16 24 N | 097 43 26 W |
| Southlake | Populated Place | 194 | Tarrant | 32 56 28 N | 097 08 03 W |
| Southlake Assembly of God Church | Church | 203 | Tarrant | 32 57 21 N | 097 09 02 W |
| Southland | Populated Place | 920 | Garza | 33 21 43 N | 101 33 01 W |
| Southland Acres | Populated Place | 207 | Tarrant | 32 40 31 N | 097 06 59 W |
| Southland Acres Church | Church | 208 | Tarrant | 32 40 13 N | 097 07 32 W |
| Southland Baptist Church | Church | 31 | Tom Green | 31 25 19 N | 100 29 31 W |
| Southland Center Heliport | Airport | 134 | Dallas | 32 46 25 N | 096 47 55 W |
| Southland Memorial Park | Cemetery | 150 | Dallas | 32 43 48 N | 097 00 15 W |
| Southland Park | Park | 14 | Harris | 29 42 11 N | 095 22 19 W |
| Southland School | School | 939 | Garza | 33 25 39 N | 101 38 32 W |
| Southland School | School | 13 | Harris | 29 42 13 N | 095 21 56 W |
| Southlawn Assembly of God Church | Church | 1116 | Randall | 35 10 02 N | 101 51 27 W |
| Southmayd | Populated Place | 224 | Grayson | 33 37 49 N | 096 46 09 W |
| Southmayd Elementary School | School | 10 | Harris | 29 42 37 N | 095 17 19 W |
| Southmayd Park | Park | 9 | Harris | 29 42 22 N | 095 17 16 W |
| Southmayd School | School | 10 | Harris | 29 42 37 N | 095 17 21 W |
| Southminster Presbyterian Church | Church | 166 | Dallas | 32 53 04 N | 096 37 51 W |
| Southmore Hospital | Hospital | 10 | Harris | 29 41 26 N | 095 12 06 W |
| Southmore Intermediate School | School | 11 | Harris | 29 41 18 N | 095 11 50 W |
| Southmore Medical Center Heliport | Airport | 10 | Harris | 29 41 23 N | 095 12 04 W |
| Southmore Park | Park | 11 | Harris | 29 41 25 N | 095 10 08 W |
| Southmore School | School | 10 | Harris | 29 41 26 N | 095 11 41 W |
| Southmost Cemetery | Cemetery | 6 | Cameron | 25 51 26 N | 097 23 24 W |
| Southmost College | School | 9 | Cameron | 25 53 55 N | 097 29 31 W |
| Southmost Elementary School | School | 8 | Cameron | 25 53 30 N | 097 26 21 W |
| Southmost Ranch | Locale | 7 | Cameron | 25 51 10 N | 097 23 20 W |
| Southpoint Marina | Locale | 3 | Cameron | 26 03 59 N | 097 12 33 W |
| Southside Alternative Center | School | 160 | Bexar | 29 14 26 N | 098 28 11 W |
| Southside Assembly of God Church | Church | 428 | Brown | 31 41 55 N | 098 59 23 W |
| Southside Assembly of God Church | Church | 93 | Gregg | 32 28 17 N | 094 44 32 W |
| Southside Baptist Church | Church | 167 | Bexar | 29 13 13 N | 098 27 38 W |
| Southside Baptist Church | Church | 425 | Brown | 31 40 55 N | 098 57 39 W |
| Southside Baptist Church | Church | 223 | Cooke | 33 36 40 N | 097 07 54 W |
| Southside Baptist Church | Church | 228 | Hood | 32 26 07 N | 097 47 52 W |
| Southside Baptist Church | Church | 162 | Hunt | 33 07 40 N | 096 05 49 W |
| Southside Baptist Church | Church | 5 | Jefferson | 29 58 59 N | 093 57 29 W |
| Southside Baptist Church | Church | 135 | Kaufman | 32 34 21 N | 096 18 43 W |
| Southside Baptist Church | Church | 1115 | Moore | 35 51 06 N | 101 58 19 W |
| Southside Baptist Church | Church | 893 | Ochiltree | 36 22 45 N | 100 48 33 W |
| Southside Baptist Church | Church | 96 | Panola | 32 08 47 N | 094 20 42 W |
| Southside Baptist Church | Church | 134 | Rusk | 32 08 05 N | 094 47 51 W |
| Southside Baptist Church | Church | 294 | Wichita | 33 53 36 N | 098 29 40 W |
| Southside Campground | Locale | 891 | Gray | 35 12 20 N | 100 52 26 W |
| Southside Church | Church | 162 | Anderson | 31 44 49 N | 095 37 02 W |
| Southside Church of Christ | Church | 155 | Travis | 30 15 04 N | 097 44 57 W |
| Southside Church of God | Church | 187 | Bexar | 29 21 32 N | 098 29 56 W |
| Southside Church of God | Church | 187 | Bexar | 29 21 31 N | 098 29 56 W |
| Southside Church of God | Church | 538 | Taylor | 32 24 59 N | 099 45 34 W |
| Southside Church of God in Christ | Church | 516 | Taylor | 32 28 28 N | 099 45 08 W |
| Southside Elementary School | School | 8 | Brazoria | 29 09 06 N | 095 25 21 W |
| Southside Middle School | School | 160 | Bexar | 29 14 26 N | 098 28 11 W |
| Southside Park | Park | 108 | Caldwell | 29 39 56 N | 097 38 56 W |
| Southside Park | Park | 9 | Nueces | 27 44 12 N | 097 24 34 W |
| Southside Park | Park | 23 | Nueces | 27 47 08 N | 097 40 39 W |
| Southside Park | Park | 145 | Smith | 32 17 25 N | 095 17 34 W |
| Southside Park Trail | Trail | 146 | Smith | 32 17 42 N | 095 17 51 W |
| Southside Place | Populated Place | 16 | Harris | 29 42 22 N | 095 26 13 W |
| Southside Primary School | School | 168 | Anderson | 31 44 27 N | 095 37 33 W |
| Southside Primary School | School | 48 | Liberty | 30 20 24 N | 095 05 23 W |
| Southside School | School | 7 | Brazoria | 29 09 10 N | 095 25 18 W |
| Southside School | School | 71 | Panola | 32 02 09 N | 094 16 42 W |
| Southside School | School | 315 | Wichita | 34 04 36 N | 098 33 41 W |
| Southside School | School | 160 | Williamson | 30 33 41 N | 097 24 37 W |
| Southside Stadium | Park | 164 | Bexar | 29 14 11 N | 098 28 17 W |
| Southside Village Colonia | Populated Place | 29 | Hidalgo | 26 09 23 N | 098 07 24 W |
| Southside Youth Sports Complex | Park | 9 | Nueces | 27 43 55 N | 097 23 49 W |
| Southton | Populated Place | 155 | Bexar | 29 17 47 N | 098 25 07 W |
| Southton Oil Field | Oilfield | 163 | Bexar | 29 17 54 N | 098 25 48 W |
| Southton Sanitorium | Hospital | 165 | Bexar | 29 18 44 N | 098 25 18 W |