| NUMBER | NAME | COUNTY | LAT | LON |
| TX09 | Alcatraz | Loving | 315803N | 1035618W |
| TX03 | Alexander Island | Harris | 294327N | 0950154W |
| TX10 | Arrowhead Island | Hutchinson | 354201N | 1013546W |
| TX03 | Atkinson Island | Chambers | 293940N | 0945805W |
| TX01 | Ayres Island | Aransas | 281058N | 0965049W |
| TX01 | Ballou Island | Aransas | 280715N | 0965232W |
| TX01 | Barclay Island | Cameron | 261429N | 0971824W |
| TX03 | Barnes Island | Harris | 294343N | 0950258W |
| TX01 | Bartell Island | Aransas | 280729N | 0965832W |
| TX07 | Bass Island | Palo Pinto | 325158N | 0983226W |
| TX03 | Baxter Island | Matagorda | 284100N | 0955914W |
| TX02 | Bayucos Island | Calhoun | 282423N | 0962446W |
| TX06 | Bells Island | Cass | 331658N | 0941146W |
| TX02 | Big Bird Island | Calhoun | 281635N | 0964407W |
| TX06 | Big Green Break | Marion | 324158N | 0940234W |
| TX01 | Big Ilsand | Aransas | 280307N | 0965637W |
| TX01 | Big Island | Aransas | 280307N | 0965637W |
| TX04 | Big Island | Angelina | 312306N | 0942911W |
| TX07 | Big Island | Brown | 315706N | 0990404W |
| TX04 | Big Pine Island | Jasper | 305544N | 0941105W |
| TX03 | Big Reef | Galveston | 292007N | 0944401W |
| TX03 | Bird Island | Brazoria | 290543N | 0950827W |
| TX01 | Bird Island | Cameron | 260223N | 0971856W |
| TX03 | Bird Island | Chambers | 295139N | 0944352W |
| TX03 | Bird Island | Chambers | 294944N | 0944735W |
| TX03 | Bird Islands | Galveston | 291050N | 0950116W |
| TX02 | Blackberry Island | Calhoun | 282518N | 0962653W |
| TX07 | Bloodweed Island | Palo Pinto | 325524N | 0982648W |
| TX01 | Bludworth Island | Aransas | 280846N | 0965350W |
| TX06 | Bois D'Arc Island | Dallas | 323452N | 0963308W |
| TX03 | Brady Island | Harris | 294323N | 0951633W |
| TX03 | Brant Island | Harris | 293327N | 0942751W |
| TX15 | Brazos Island | Cameron | 260149N | 0970926W |
| TX03 | Buckeye Island | Chambers | 294753N | 0944348W |
| TX01 | Caballo Island | Cameron | 261732N | 0971801W |
| TX01 | Calabazas Islands | Kenedy | 265912N | 0973035W |
| TX07 | Campbell Island | Parker | 323443N | 0975003W |
| TX05 | Caney Island | Brazos | 305314N | 0961212W |
| TX07 | Carter Island | Palo Pinto | 325753N | 0982445W |
| TX07 | Cattle Island | Baylor | 334445N | 0991345W |
| TX01 | Chubby Island | Willacy | 262852N | 0972509W |
| TX03 | Clark Island | Jefferson | 300247N | 0940211W |
| TX01 | Clark Island | Cameron | 260311N | 0971033W |
| TX05 | Clement Island | Fayette | 295343N | 0965300W |
| TX01 | Colorado Island | Cameron | 262146N | 0972052W |
| TX03 | Cone Island | Brazoria | 285831N | 0951743W |
| TX01 | Cooks Island | Nueces | 274956N | 0971340W |
| TX03 | Coon Island | Matagorda | 283907N | 0961352W |
| TX07 | Costello Island | Palo Pinto | 325402N | 0982736W |
| TX03 | Coulter Island | Chambers | 293614N | 0943013W |
| TX07 | Council Island | Archer | 333815N | 0984831W |
| TX03 | Cove Island | Chambers | 294706N | 0944510W |
| TX01 | Coyote Island | Nueces | 274808N | 0970637W |
| TX01 | Crane Islands | Nueces | 274005N | 0971237W |
| TX01 | Cuba Island | Kenedy | 270713N | 0972333W |
| TX01 | Dagger Island | Nueces | 275005N | 0971015W |
| TX04 | Dark Hammock | Newton | 310307N | 0933256W |
| TX01 | Deadman Island | Aransas | 280353N | 0965739W |
| TX01 | Deer Island | Willacy | 262515N | 0971509W |
| TX10 | Deer Island | Brisco | 355489N | 1014457W |
| TX03 | Deserter Island | Hardin | 302502N | 0940828W |
| TX02 | Dewberry Island | Calhoun | 282307N | 0963040W |
| TX03 | Diamond Island | Harris | 294802N | 0950426W |
| TX03 | Dick Island | Matagorda | 284726N | 0955921W |
| TX06 | Dog Bone Island | Smith | 321320N | 0950841W |
| TX03 | Dog Island | Matagorda | 283939N | 0960104W |
| TX03 | Dooms Island | Orange | 295758N | 0935057W |
| TX03 | Double Gum Island | Liberty | 295325N | 0942803W |
| TX03 | Dressing Point | Matagorda | 284350N | 0954535W |
| TX01 | Dunham Island | Aransas | 280720N | 0965500W |
| TX03 | East Cane Island | Orange | 300807N | 0934315W |
| TX01 | Egery Island | Aransas | 280415N | 0971233W |
| TX03 | Egret Island | Matagorda | 284017N | 0955718W |
| TX01 | El Morro Island | Cameron | 262158N | 0972029W |
| TX01 | El Sauz Island | Willacy | 263211N | 0972517W |
| TX02 | Farwell Island | Calhoun | 282149N | 0962705W |
| TX03 | Fidelity Island | Harris | 294340N | 0951524W |
| TX02 | First Chain of Islands | Calhoun | 281733N | 0963620W |
| TX03 | Flamingo Isles | Galveston | 291724N | 0945752W |
| TX03 | Follets Island | Brazoria | 290232N | 0951010W |
| TX03 | French Island | Jefferson | 295255N | 0940535W |
| TX01 | Fronton Island | Starr | 262359N | 0990407W |
| TX01 | Gabrielson Island | Cameron | 261357N | 0971826W |
| TX11 | Galveston Island | Galveston | 291319N | 0945431W |
| TX05 | Garret Island | Burnet | 305055N | 0982454W |
| TX01 | Gatlin Island | Cameron | 261235N | 0971804W |
| TX06 | Goat Island | Marion | 324521N | 0940812W |
| TX07 | Goat Island | Baylor | 334526N | 0991243W |
| TX06 | Goat Island | Tarrant | 324812N | 0972834W |
| TX07 | Goat Island | Stephens | 323836N | 0985155W |
| TX07 | Goat Island | Brown | 315209N | 0990130W |
| TX03 | Goat Island | Orange | 295910N | 0934740W |
| TX03 | Goat Island | Hardin | 301017N | 0940908W |
| TX03 | Goat Island | Galveston | 292810N | 0943955W |
| TX03 | Goat Island | Harris | 294403N | 0950238W |
| TX10 | Goat Island | Brisco | 355489N | 1014447W |
| TX01 | Goose Island | Cameron | 255939N | 0972050W |
| TX01 | Goose Island | Aransas | 280741N | 0965930W |
| TX06 | Goose Island | Harrison | 324115N | 0940613W |
| TX01 | Grass Island | Aransas | 280802N | 0965503W |
| TX01 | Grass Island | Aransas | 280304N | 0970913W |
| TX02 | Grass Island | Calhoun | 282232N | 0962727W |
| TX02 | Grass Island | Calhoun | 281912N | 0963825W |
| TX04 | Gray Hammock | Newton | 310210N | 0933300W |
| TX03 | Greek Island | Matagorda | 283650N | 0955900W |
| TX01 | Green Island | Cameron | 262331N | 0971927W |
| TX06 | Greer Island | Tarrant | 324941N | 0972742W |
| TX01 | Griffin Island | San Patricio | 275509N | 0974329W |
| TX03 | Grubs Island | Orange | 301322N | 0934319W |
| TX03 | Gum Island | Jefferson | 294738N | 0940701W |
| TX03 | Gum Island | Orange | 300205N | 0935448W |
| TX03 | Hanna Island | Galveston | 292800N | 0944930W |
| TX03 | Harbor Island | Jefferson | 300431N | 0940517W |
| TX01 | Harbor Island | Nueces | 275201N | 0970444W |
| TX01 | Hawk Island | Willacy | 262546N | 0972335W |
| TX01 | Heron Island | Cameron | 261902N | 0972003W |
| TX01 | Hog Island | Nueces | 275358N | 0970608W |
| TX03 | Hog Island | Jefferson | 294811N | 0940603W |
| TX03 | Hog Island | Harris | 294648N | 0950418W |
| TX03 | Hog Island | Harris | 294145N | 0945910W |
| TX03 | Hog Island | Matagorda | 283906N | 0955235W |
| TX06 | Horse Island | Marion | 324431N | 0940918W |
| TX03 | Horse Island | Chambers | 294800N | 0944746W |
| TX07 | Horse Island | Wise | 331156N | 0975133W |
| TX01 | Horse Island | Cameron | 262020N | 0972014W |
| TX03 | Humble Island | Orange | 295837N | 0935111W |
| TX02 | Indianola Island | Calhoun | 283058N | 0962954W |
| TX04 | Island, The | Angelina | 310717N | 0944621W |
| TX04 | Island, The | Angelina | 310648N | 0944522W |
| TX07 | Island, The | Stephens | 324826N | 0990134W |
| TX03 | Jacks Island | Orange | 300838N | 0934351W |
| TX01 | Josephine Island | Willacy | 262717N | 0972418W |
| TX02 | Kamey Island | Calhoun | 282642N | 0964841W |
| TX02 | Kenyon Island | Calhoun | 282653N | 0964754W |
| TX01 | Key Allegro | Aransas | 280221N | 0970139W |
| TX01 | La Quinta Island | Nueces | 275020N | 0971415W |
| TX06 | Langley Island | Smith | 321405N | 0951029W |
| TX03 | Lawrence Island | Chambers | 294831N | 0944530W |
| TX03 | Leat Island | Chambers | 294831N | 0944710W |
| TX10 | Little Arrowhead Island | Hutchinsin | 357025N | 1015976W |
| TX02 | Little Bird Island | Calhoun | 281732N | 0964149W |
| TX03 | Little Pine Island | Jefferson | 295322N | 0942436W |
| TX04 | Little Pine Island | Jasper | 305624N | 0941108W |
| TX02 | Long Island | Calhoun | 282056N | 0963515W |
| TX01 | Long Island | Cameron | 260332N | 0971208W |
| TX07 | Long Island | Archer | 333815N | 0985037W |
| TX04 | Lower Island | Nacogdoches | 312821N | 0944458W |
| TX01 | Lydia Ann Island | Aransas | 275314N | 0970232W |
| TX12 | Matagorda Island | Calhoun | 281337N | 0963824W |
| TX07 | McCartney Island | Brown | 315101N | 0990029W |
| TX07 | McFarland Island | Wichita | 340342N | 0982834W |
| TX06 | McFarland Island | Bowie | 331629N | 0941847W |
| TX01 | McGilvery Island | Cameron | 262128N | 0972218W |
| TX03 | McNabb Island | Matagorda | 284033N | 0960012W |
| TX01 | Medio Island | Cameron | 261646N | 0971736W |
| TX01 | Medio, Los Bencos de en | Cameron | 262222N | 0971502W |
| TX01 | Mesquite Island | San Patricio | 280451N | 0975334W |
| TX01 | Mesquite Rincon | Kenedy | 265210N | 0973025W |
| TX03 | Middle Deer Island | Galveston | 291642N | 0945508W |
| TX03 | Moodys Island | Brazoria | 290423N | 0950858W |
| TX01 | Mud Island | Aransas | 275637N | 0970115W |
| TX01 | Mud Island | Willacy | 262517N | 0972334W |
| TX03 | Mud Island | Brazoria | 290516N | 0950908W |
| TX03 | Mule Island | Orange | 300210N | 0934654W |
| TX01 | Mullet Island | Willacy | 262801N | 0972412W |
| TX01 | Mustang Island | Nueces | 274421N | 0970753W |
| TX03 | Mustang Island | Chambers | 294713N | 0944841W |
| TX01 | Needle Island | Cameron | 261351N | 0972316W |
| TX01 | Neubauer Rock | Kleberg | 271811N | 0973844W |
| TX01 | North Bird Island | Kleberg | 273114N | 0971725W |
| TX03 | North Deer Island | Galveston | 291706N | 0945529W |
| TX03 | Oak Island | Chambers | 295244N | 0942716W |
| TX01 | Odem Island | Nueces | 275512N | 0974413W |
| TX04 | Old River Island | Trinity | 311457N | 0945348W |
| TX13 | Padre Island | Kenedy | 265039N | 0972203W |
| TX07 | Pancake Island | Archer | 333944N | 0984717W |
| TX06 | Paul Moore Island | Bowie | 333444N | 0942650W |
| TX03 | Pavell Island | Orange | 300339N | 0934222W |
| TX05 | Pecan Island | Comal | 294253N | 0980801W |
| TX02 | Pelican Island | Calhoun | 282257N | 0962326W |
| TX11 | Pelican Island | Galveston | 291953N | 0944807W |
| TX06 | Pelican Island | Tarrant | 325414N | 0973011W |
| TX01 | Pelican Island | Nueces | 274915N | 0970915W |
| TX01 | Pelone Island | Nueces | 274850N | 0970601W |
| TX03 | Pignut Island | Jefferson | 295916N | 0942215W |
| TX04 | Pine Island | Angelina | 312121N | 0945625W |
| TX06 | Pine Island | Harrison | 324158N | 0940619W |
| TX04 | Pine Island | Newton | 310712N | 0933357W |
| TX04 | Pine Island | Cherokee | 314801N | 0945737W |
| TX04 | Pine Island | Trinity | 312217N | 0945614W |
| TX04 | Pine Island | Angelina | 311020N | 0945022W |
| TX04 | Pine Island | Shelby | 315239N | 0935506W |
| TX01 | Pita Island | Nueces | 273609N | 0971711W |
| TX03 | Pleasure Island | Jefferson | 295407N | 0935350W |
| TX02 | Pleasure Island | Victoria | 284804N | 0970104W |
| TX01 | Primero Island | Cameron | 261647N | 0971702W |
| TX01 | Punta Larga, La | Cameron | 261825N | 0971242W |
| TX01 | Quinta Island, La | Nueces | 275130N | 0971530W |
| TX06 | Rag Island | Harrison | 324141N | 0940631W |
| TX01 | Ransom Island | Nueces | 275206N | 0970801W |
| TX07 | Rattlesnake Island | Wise | 331131N | 0975128W |
| TX03 | Rattlesnake Island | Matagorda | 284009N | 0960216W |
| TX07 | Rattlesnake Island | Baylor | 334501N | 0991309W |
| TX01 | Rattlesnake Island | Aransas | 281140N | 0964954W |
| TX01 | Rattlesnake Island | Cameron | 261936N | 0971943W |
| TX03 | Red Fish Island | Chambers | 293050N | 0945306W |
| TX01 | Rock Island | Kleberg | 272600N | 0972028W |
| TX01 | Rock Island | Kleberg | 272601N | 0972029W |
| TX01 | Roddy Island | Aransas | 281029N | 0965100W |
| TX01 | Salt Island | Nueces | 274929N | 0970517W |
| TX09 | San Elizario Island | El Paso | 312834N | 1061001W |
| TX14 | San Jose Island | Aransas | 280000N | 0965600W |
| TX03 | San Luis Island | Brazoria | 290429N | 0950740W |
| TX06 | Sand Island | Harrison | 324156N | 0940508W |
| TX07 | Sand Island | Palo Pinto | 325440N | 0982720W |
| TX02 | Second Chain of Islands | Calhoun | 281118N | 0964850W |
| TX03 | Selkirk Island | Matagorda | 284519N | 0955922W |
| TX01 | Shamrock Island | Nueces | 274557N | 0970946W |
| TX03 | Shell Island | Galveston | 292657N | 0945532W |
| TX03 | Shell Island | Galveston | 291125N | 0950055W |
| TX01 | Shellbank Island | Aransas | 275526N | 0970431W |
| TX03 | Shoal Point | Galveston | 292220N | 0945251W |
| TX03 | Smith Island | Jefferson | 300354N | 0940317W |
| TX03 | Snake Island | Galveston | 290941N | 0950234W |
| TX06 | Snake Island | Tarrant | 324832N | 0972916W |
| TX10 | South Island | Donley | 350160N | 1009183W |
| TX01 | South Bird Island | Kleberg | 272930N | 0971822W |
| TX03 | South Deer Island | Galveston | 291620N | 0945439W |
| TX02 | South Pass Island | Calhoun | 281746N | 0963717W |
| TX03 | Spilmans Island | Harris | 294142N | 0950010W |
| TX01 | Spoil Island | Nueces | 274821N | 0972318W |
| TX05 | Starnes Island | Travis | 302617N | 0975515W |
| TX02 | Steamboat Island | Calhoun | 281838N | 0963714W |
| TX01 | Stedman Island | Nueces | 275320N | 0970644W |
| TX07 | Steele Island | Wise | 331423N | 0975231W |
| TX07 | Steele Island | Wise | 331421N | 0975231W |
| TX03 | Stewts Island | Orange | 295811N | 0935049W |
| TX07 | Stripling Island | Wise | 331314N | 0975200W |
| TX03 | Sydnes Island | Orange | 295836N | 0934931W |
| TX01 | Talley Island | Aransas | 275814N | 0970424W |
| TX06 | Taylor Island | Harrison | 324317N | 0940728W |
| TX03 | Teal Island | Orange | 301129N | 0934325W |
| TX03 | Texaco Island | Jefferson | 294948N | 0935727W |
| TX10 | The Island | Donley | 350161N | 1009214W |
| TX01 | Third Chain of Islands | Aransas | 280822N | 0965228W |
| TX01 | Three Islands | Cameron | 261636N | 0971743W |
| TX03 | Tiger Island | Matagorda | 283654N | 0955853W |
| TX03 | Tiki Island | Galveston | 291747N | 0945453W |
| TX01 | Traylor Island | Aransas | 275657N | 0970420W |
| TX02 | Treasure Island | Guadalupe | 293615N | 0980219W |
| TX01 | Tres Marias | Kenedy | 265627N | 0973104W |
| TX03 | Turkey Island | Jefferson | 295844N | 0942324W |
| TX03 | Turkey Island | Matagorda | 284507N | 0954455W |
| TX02 | Turnstake Island | Calhoun | 281847N | 0964041W |
| TX06 | Twin Island | Harrison | 324146N | 0940536W |
| TX01 | Ultimo Island | Cameron | 261611N | 0971808W |
| TX01 | Ultimo Island | Cameron | 261610N | 0971811W |
| TX02 | Vanderveer Island | Calhoun | 281929N | 0963055W |
| TX03 | Vingt-et-un Islands | Chambers | 293318N | 0944628W |
| TX08 | Walton Island | Medina | 293353N | 0985522W |
| TX01 | Ward Island | Nueces | 274245N | 0971923W |
| TX06 | Watts Island | Marion | 324601N | 0943301W |
| TX03 | West Cane Island | Orange | 300748N | 0934332W |
| TX03 | Wild Cow Island | Matagorda | 284236N | 0955935W |
| TX06 | Willow Island | Tarrant | 324843N | 0972718W |
| TX06 | Wood Island | Tarrant | 324826N | 0972903W |
| TX01 | Yucca Island | Cameron | 261838N | 0972005W |
