Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| South River Windmill | Locale | 687 | Motley | 33 51 43 N | 100 36 10 W |
| South Rock Tank | Reservoir | 998 | Reeves | 31 18 40 N | 104 04 33 W |
| South Rocky Creek | Stream | | Burnet | 30 56 38 N | 097 59 28 W |
| South Romero Windmill | Locale | 1088 | Oldham | 35 33 21 N | 102 44 42 W |
| South Rumsey Creek | Stream | | Wood | 30 52 57 N | 097 39 29 W |
| South Rusk Windmill | Locale | 885 | Winkler | 31 51 28 N | 103 00 40 W |
| South Sage Creek | Stream | | Kent | 33 04 34 N | 101 01 28 W |
| South Saint Nicholas Lake | Lake | 21 | Refugio | 28 27 22 N | 097 13 04 W |
| South Salado Creek | Stream | | Williamson | 30 49 41 N | 097 41 34 W |
| South Salem | Populated Place | 177 | Leon | 31 16 05 N | 096 04 18 W |
| South Saline Creek | Stream | | Kimble | 30 42 13 N | 099 41 11 W |
| South Sampson Well | Well | 1284 | Hartley | 35 41 01 N | 103 01 37 W |
| South San Antonio Alternative School | School | 202 | Bexar | 29 22 09 N | 098 33 20 W |
| South San Antonio Competency Based High School | School | 201 | Bexar | 29 22 10 N | 098 33 05 W |
| South San Antonio High School | School | 202 | Bexar | 29 20 58 N | 098 32 49 W |
| South San Antonio High School West Campus | School | 211 | Bexar | 29 21 22 N | 098 36 39 W |
| South San Antonio Mexican Baptist Church | Church | 197 | Bexar | 29 21 48 N | 098 32 30 W |
| South San Park | Park | 202 | Bexar | 29 22 11 N | 098 33 31 W |
| South San Pedro Park | Park | 202 | Bexar | 29 22 11 N | 098 33 32 W |
| South San Stadium | Park | 204 | Bexar | 29 21 03 N | 098 33 01 W |
| South Sand Well | Well | 1244 | Hartley | 35 48 11 N | 102 47 59 W |
| South Sand Windmill | Locale | 875 | Winkler | 31 50 18 N | 103 01 60 W |
| South Santa Fe Oil Field | Oilfield | 23 | Hidalgo | 26 45 43 N | 098 06 25 W |
| South Santa Fe Windmill | Locale | 1177 | Oldham | 35 34 53 N | 102 52 55 W |
| South Sawyers Dam | Dam | 60 | Tyler | 30 41 43 N | 094 25 19 W |
| South Sawyers Lake | Reservoir | 60 | Tyler | 30 41 43 N | 094 25 19 W |
| South Schaver Elementary School | School | 9 | Harris | 29 40 58 N | 095 12 33 W |
| South School | School | 910 | Dawson | 32 43 17 N | 101 58 21 W |
| South School | School | 20 | Hidalgo | 26 08 35 N | 097 54 40 W |
| South School | School | 1070 | Hockley | 33 34 38 N | 102 22 19 W |
| South School | School | 849 | Midland | 31 59 15 N | 102 04 31 W |
| South School | School | 17 | San Patricio | 27 58 09 N | 097 24 07 W |
| South School | School | 171 | Tarrant | 32 49 42 N | 097 04 52 W |
| South Sealy Oil Field | Oilfield | 816 | Ward | 31 35 39 N | 103 02 35 W |
| South Seminary | Locale | 227 | Tarrant | 32 37 08 N | 097 20 40 W |
| South Shaver School | School | 9 | Harris | 29 40 55 N | 095 12 36 W |
| South Shelton Rock | Summit | 384 | Erath | 32 25 39 N | 098 27 36 W |
| South Shinnery Windmill | Locale | 646 | Dickens | 33 39 08 N | 100 35 39 W |
| South Shore | Populated Place | 53 | Harrison | 32 40 13 N | 094 04 59 W |
| South Shore Harbour Marina | Locale | 6 | Galveston | 29 32 41 N | 095 04 01 W |
| South Side Baptist Church | Church | 530 | Taylor | 32 26 33 N | 099 44 22 W |
| South Side Canal | Canal | 317 | Archer | 33 49 47 N | 098 48 27 W |
| South Side Cemetery | Cemetery | 146 | Walker | 30 42 26 N | 095 32 33 W |
| South Side City Park | Park | 199 | Dallas | 32 38 28 N | 096 54 51 W |
| South Side Community Park | Park | 879 | Ector | 31 50 00 N | 102 21 60 W |
| South Side Feeder Lateral | Canal | 1118 | El Paso | 31 40 09 N | 106 19 27 W |
| South Side High School | School | 161 | Bexar | 29 14 25 N | 098 28 12 W |
| South Side Historic District | Locale | 151 | Anderson | 31 45 39 N | 095 38 14 W |
| South Side Lions Park | Park | 211 | Bexar | 29 23 06 N | 098 26 03 W |
| South Side Lions Park East | Park | 177 | Bexar | 29 23 07 N | 098 25 12 W |
| South Side Masonic Lodge Number 1114 | Building | 192 | Tarrant | 32 43 50 N | 097 20 24 W |
| South Side Place | Populated Place | 15 | Harris | 29 42 25 N | 095 25 55 W |
| South Side School | School | 85 | Gregg | 32 29 27 N | 094 45 01 W |
| South Side School | School | 49 | Liberty | 30 20 20 N | 095 05 17 W |
| South Side School | School | 105 | Morris | 33 01 00 N | 094 43 11 W |
| South Side School | School | 180 | Tarrant | 32 44 03 N | 097 06 04 W |
| South Side School | School | 32 | Wharton | 29 11 37 N | 096 15 44 W |
| South Simmons Creek | Stream | | Hemphill | 35 47 54 N | 100 29 55 W |
| South Six Windmill | Locale | 926 | Pecos | 30 46 21 N | 102 41 27 W |
| South Sixmile Draw | Valley | | Pecos | 30 48 08 N | 101 52 49 W |
| South Stowell Oil Field | Oilfield | 4 | Jefferson | 29 48 16 N | 094 19 29 W |
| South Sulphur | Populated Place | 168 | Hunt | 33 15 54 N | 096 00 36 W |
| South Sulphur River | Stream | | Delta | 33 22 40 N | 095 18 26 W |
| South Sulphur River | Stream | | Red River | 33 23 36 N | 095 21 22 W |
| South Summerour Well | Well | 1244 | Hartley | 35 52 34 N | 102 46 06 W |
| South Tank | Lake | 913 | Loving | 31 46 46 N | 103 59 01 W |
| South Tank | Reservoir | 766 | Borden | 32 32 02 N | 101 28 38 W |
| South Tank | Reservoir | 771 | Borden | 32 35 49 N | 101 33 00 W |
| South Tank | Reservoir | 1597 | Hudspeth | 31 13 49 N | 105 05 52 W |
| South Tank | Reservoir | 1610 | Jeff Davis | 30 53 06 N | 104 17 07 W |
| South Tank | Reservoir | 574 | Stonewall | 33 23 10 N | 100 29 40 W |
| South Tank | Reservoir | 204 | Zavala | 28 45 05 N | 099 34 39 W |
| South Tank | Reservoir | 200 | Zavala | 28 46 11 N | 099 39 23 W |
| South Tank | Reservoir | 223 | Zavala | 28 50 30 N | 099 38 00 W |
| South Temple Church | Church | 154 | Dallas | 32 44 01 N | 097 00 14 W |
| South Texarkana | Populated Place | 101 | Bowie | 33 24 08 N | 094 02 35 W |
| South Texas Childrens Home | Building | 119 | Bee | 28 34 19 N | 097 53 05 W |
| South Texas Community College | School | 24 | Hidalgo | 26 09 27 N | 097 59 43 W |
| South Texas Community College | School | 37 | Hidalgo | 26 13 01 N | 098 15 12 W |
| South Texas Factory Stores | Locale | 20 | Hidalgo | 26 09 24 N | 097 56 59 W |
| South Texas High School - San Benito | School | 12 | Cameron | 26 09 12 N | 097 39 53 W |
| South Texas Hospital | Hospital | 14 | Cameron | 26 09 34 N | 097 42 23 W |
| South Texas Institute for the Arts | Building | 0 | Nueces | 27 48 21 N | 097 23 33 W |
| South Texas Museum | Building | 62 | Jim Wells | 27 44 52 N | 098 04 27 W |
| South Texas National Bank | Building | 14 | Harris | 29 45 46 N | 095 21 37 W |
| South Texas Regional Medical Center | Hospital | 131 | Atascosa | 28 55 45 N | 098 31 48 W |
| South Texas State Fairground | Locale | 10 | Jefferson | 30 06 21 N | 094 06 56 W |
| South Texas Vo-Tech Institute | School | 20 | Hidalgo | 26 10 15 N | 097 57 54 W |
| South Texas Water Company Canal | Canal | 10 | Brazoria | 29 19 16 N | 095 19 41 W |
| South Toledo Bend | Populated Place | 55 | Newton | 31 09 12 N | 093 36 17 W |
| South Tonk Branch | Stream | | Young | 33 02 57 N | 098 36 36 W |
| South Tower Estates Colonia | Populated Place | 28 | Hidalgo | 26 09 01 N | 098 06 48 W |
| South Trap Windmill | Locale | 636 | Kimble | 30 22 33 N | 099 25 06 W |
| South Trap Windmill | Locale | 614 | Motley | 34 04 30 N | 100 34 23 W |
| South Tule Draw | Valley | | Swisher | 34 29 35 N | 101 35 52 W |
| South Turkey Creek | Stream | | Comanche | 32 04 55 N | 098 37 14 W |
| South Turkey Creek | Stream | | Lampasas | 31 20 29 N | 098 12 27 W |
| South Twin Creek | Stream | | Henderson | 32 18 48 N | 096 06 05 W |
| South Twin Lakes | Reservoir | 107 | Upshur | 32 39 49 N | 094 55 25 W |
| South Twin Lakes Dam | Dam | 107 | Upshur | 32 39 49 N | 094 55 25 W |
| South Twomile Windmill | Locale | 1099 | Hockley | 33 47 58 N | 102 30 31 W |
| South Union Cemetery | Cemetery | 110 | Morris | 32 58 25 N | 094 41 39 W |
| South Union Church of Christ | Church | 15 | Harris | 29 41 04 N | 095 22 22 W |
| South Union Creek | Stream | | Morris | 32 57 44 N | 094 42 41 W |
| South Union Missionary Baptist Church | Church | 140 | Anderson | 31 45 13 N | 095 38 10 W |
| South Union Missionary Baptist Church | Church | 15 | Harris | 29 41 05 N | 095 22 24 W |
| South United Pentecostal Church | Church | 6 | Jefferson | 30 02 10 N | 094 04 05 W |
| South Vargas Windmill | Locale | 44 | Brooks | 27 07 33 N | 098 13 13 W |
| South Waco Church of Christ | Church | 155 | McLennan | 31 31 41 N | 097 08 48 W |
| South Waco Elementary School | School | 129 | McLennan | 31 31 27 N | 097 07 16 W |