Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Donna Reservoir 2 | Reservoir | 25 | Hidalgo | 26 09 07 N | 098 05 01 W |
| Weslaco East High School | School | 22 | Hidalgo | 26 09 07 N | 097 58 12 W |
| Bixby | Populated Place | 18 | Cameron | 26 09 06 N | 097 51 13 W |
| Line V Canal | Canal | 12 | Cameron | 26 09 05 N | 097 40 35 W |
| Orange Grove Canal | Canal | 17 | Cameron | 26 09 04 N | 097 50 29 W |
| Flying 'K' Ranch Ultralight Airport | Airport | 19 | Hidalgo | 26 09 02 N | 097 53 01 W |
| Main Floodway | Basin | 23 | Hidalgo | 26 09 01 N | 098 08 49 W |
| Donna Reservoirs | Reservoir | 25 | Hidalgo | 26 09 01 N | 098 04 01 W |
| South Tower Estates Colonia | Populated Place | 28 | Hidalgo | 26 09 01 N | 098 06 48 W |
| Spanish Seventh Day Adventist Church | Church | 23 | Hidalgo | 26 09 00 N | 097 58 57 W |
| Mercedes | Populated Place | 21 | Hidalgo | 26 08 59 N | 097 54 49 W |
| Mercedes Floodway Bridge | Bridge | 17 | Hidalgo | 26 08 59 N | 097 55 41 W |
| Horseshoe Lake | Lake | 11 | Cameron | 26 08 58 N | 097 42 07 W |
| Mercedes Alternative Academy | School | 20 | Cameron | 26 08 58 N | 097 54 45 W |
| Mercedes Alternative Academy | School | 20 | Hidalgo | 26 08 58 N | 097 54 45 W |
| Alto Real Colonia | Populated Place | 18 | Cameron | 26 08 57 N | 097 51 26 W |
| South Palm Gardens Estates Number 2 Colonia | Populated Place | 21 | Hidalgo | 26 08 57 N | 097 57 19 W |
| KELT-FM (Harlingen) | Tower | 17 | Cameron | 26 08 56 N | 097 49 18 W |
| KGBT-TV (Harlingen) | Tower | 17 | Cameron | 26 08 56 N | 097 49 18 W |
| KIWW-FM (Harlingen) | Tower | 17 | Cameron | 26 08 56 N | 097 49 18 W |
| An Rico Elementary School | School | 20 | Hidalgo | 26 08 56 N | 097 55 04 W |
| Mercedes Seventh Day Adventist Spanish Church | Church | 19 | Hidalgo | 26 08 56 N | 097 55 20 W |
| Weslaco Cemetery | Cemetery | 21 | Hidalgo | 26 08 56 N | 097 59 15 W |
| Mercer Dry Reservoir Levee | Dam | 3 | Cameron | 26 08 55 N | 097 27 19 W |
| Kornegay Airport | Airport | 8 | Cameron | 26 08 55 N | 097 35 30 W |
| Mercedes Memorial Library | Building | 20 | Hidalgo | 26 08 55 N | 097 54 45 W |
| Valley Grande Academy | School | 25 | Hidalgo | 26 08 55 N | 097 59 01 W |
| Armando Cuellar Middle School | School | 25 | Hidalgo | 26 08 54 N | 097 58 58 W |
| I B Avila Colonia | Populated Place | 26 | Hidalgo | 26 08 54 N | 098 03 23 W |
| South Palm Gardens Estates Number 1 Colonia | Populated Place | 22 | Hidalgo | 26 08 54 N | 097 57 19 W |
| Our Lady of Mercy School | School | 20 | Hidalgo | 26 08 53 N | 097 55 13 W |
| West Elementary School | School | 20 | Hidalgo | 26 08 52 N | 097 55 15 W |
| Church of Christ | Church | 25 | Hidalgo | 26 08 52 N | 097 58 57 W |
| First Baptist Church | Church | 21 | Hidalgo | 26 08 51 N | 097 54 53 W |
| South Palm Gardens School | School | 21 | Hidalgo | 26 08 51 N | 097 57 05 W |
| Southeastern Helicopters Heliport | Airport | 1 | Cameron | 26 08 50 N | 097 10 26 W |
| Olivarez Number 5 Colonia | Populated Place | 22 | Hidalgo | 26 08 50 N | 097 58 35 W |
| Mercedes Early Childhood Center | School | 20 | Hidalgo | 26 08 49 N | 097 55 13 W |
| Donna Dam 1 | Dam | 25 | Hidalgo | 26 08 49 N | 098 04 13 W |
| Donna Reservoir 1 | Reservoir | 25 | Hidalgo | 26 08 49 N | 098 04 13 W |
| Anzaldua Banco Number 45 | Levee | 32 | Hidalgo | 26 08 49 N | 098 19 46 W |
| Palacios Estates Colonia | Populated Place | 12 | Cameron | 26 08 47 N | 097 39 41 W |
| Westgate Estates Colonia | Populated Place | 24 | Hidalgo | 26 08 47 N | 098 00 30 W |
| Kennedy Park | Park | 19 | Hidalgo | 26 08 45 N | 097 55 23 W |
| Sunny Glenn Home | Building | 12 | Cameron | 26 08 44 N | 097 40 04 W |
| Mercedes Junior High School | School | 19 | Hidalgo | 26 08 43 N | 097 53 40 W |
| Rancho Grande Colonia | Populated Place | 8 | Cameron | 26 08 43 N | 097 35 57 W |
| Andy Bowie County Park | Park | 3 | Cameron | 26 08 39 N | 097 10 12 W |
| La Milpa Colonia | Populated Place | 18 | Hidalgo | 26 08 39 N | 097 52 20 W |
| Sunrise Colonia | Populated Place | 18 | Hidalgo | 26 08 39 N | 097 52 24 W |
| La Loma Alta Colonia | Populated Place | 24 | Hidalgo | 26 08 39 N | 098 01 13 W |
| Leon R Graham Elementary School | School | 20 | Hidalgo | 26 08 38 N | 097 54 44 W |
| South Palm Gardens High School | School | 19 | Hidalgo | 26 08 38 N | 097 56 11 W |
| Leon R Graham Elementary School | School | 20 | Hidalgo | 26 08 36 N | 097 54 44 W |
| Hackney Lake | Lake | 26 | Hidalgo | 26 08 36 N | 098 15 59 W |
| Encino Number 1 Colonia | Populated Place | 24 | Hidalgo | 26 08 36 N | 097 59 50 W |
| South School | School | 20 | Hidalgo | 26 08 35 N | 097 54 40 W |
| Doctor R E Margo Elementary School | School | 24 | Hidalgo | 26 08 33 N | 097 58 57 W |
| San Benito Positive Redirection Center | School | 11 | Cameron | 26 08 32 N | 097 38 10 W |
| C A Conner Colonia | Populated Place | 18 | Hidalgo | 26 08 32 N | 097 53 11 W |
| Hackney Lake Inlet | Canal | 29 | Hidalgo | 26 08 32 N | 098 14 22 W |
| Dr R E Margo Elementary School | School | 24 | Hidalgo | 26 08 31 N | 097 58 53 W |
| San Benito High School | School | 10 | Cameron | 26 08 30 N | 097 38 59 W |
| KBOR-FM (Mercedes) | Tower | 16 | Cameron | 26 08 29 N | 097 50 05 W |
| Southern Valley Estates Colonia | Populated Place | 18 | Hidalgo | 26 08 29 N | 097 52 33 W |
| Alamo Gas Field | Oilfield | 24 | Hidalgo | 26 08 29 N | 098 06 49 W |
| Balli Estates Colonia | Populated Place | 23 | Hidalgo | 26 08 29 N | 098 02 18 W |
| Memorial Elementary School | School | 24 | Hidalgo | 26 08 28 N | 097 59 57 W |
| Callandret School | School | 11 | Cameron | 26 08 27 N | 097 38 13 W |
| Memorial Elementary School | School | 24 | Hidalgo | 26 08 27 N | 097 59 59 W |
| Andy Bowie Park | Park | 1 | Cameron | 26 08 25 N | 097 10 12 W |
| Garcia Elementary School | School | 27 | Hidalgo | 26 08 25 N | 098 12 23 W |
| Mercedes High School | School | 20 | Hidalgo | 26 08 25 N | 097 54 33 W |
| Downs Elementary School | School | 11 | Cameron | 26 08 24 N | 097 37 16 W |
| Scissors | Populated Place | 24 | Hidalgo | 26 08 23 N | 098 03 14 W |
| Anzalduas Park | Park | 33 | Hidalgo | 26 08 23 N | 098 19 57 W |
| La Palma Baptist Church | Church | 10 | Cameron | 26 08 22 N | 097 38 37 W |
| Roberts Elementary School | School | 11 | Cameron | 26 08 22 N | 097 38 02 W |
| Evans Canal | Canal | 17 | Cameron | 26 08 21 N | 097 48 41 W |
| Downs School | School | 11 | Cameron | 26 08 21 N | 097 37 16 W |
| Kenedy Park | Park | 12 | Cameron | 26 08 21 N | 097 37 57 W |
| Schroeder Colonia | Populated Place | 24 | Hidalgo | 26 08 21 N | 098 03 15 W |
| Mercedes High School | School | 21 | Hidalgo | 26 08 19 N | 097 54 25 W |
| Citrus Retreat Colonia | Populated Place | 24 | Hidalgo | 26 08 18 N | 098 00 30 W |
| San Benito City Park | Park | 11 | Cameron | 26 08 15 N | 097 38 37 W |
| Anzalduas Dam | Dam | 27 | Hidalgo | 26 08 15 N | 098 20 07 W |
| Saint Theresa School | School | 11 | Cameron | 26 08 14 N | 097 38 40 W |
| San Benito Public Library | Building | 12 | Cameron | 26 08 14 N | 097 37 43 W |
| San Benito Seventh Day Adventist Church | Church | 11 | Cameron | 26 08 13 N | 097 37 38 W |
| Cuates Dam Number 1 and 2 | Dam | 6 | Cameron | 26 08 13 N | 097 31 25 W |
| Cuates Lake | Reservoir | 6 | Cameron | 26 08 13 N | 097 31 25 W |
| Holly Beach | Locale | 3 | Cameron | 26 08 12 N | 097 17 46 W |
| Travis Elementary School - Mercedes | School | 20 | Hidalgo | 26 08 12 N | 097 55 01 W |
| La Feria WCID 3 Cameron Company Levee | Dam | 26 | Cameron | 26 08 12 N | 097 49 24 W |
| Wildwood Forest Colonia | Populated Place | 24 | Hidalgo | 26 08 11 N | 098 00 30 W |
| La Feria Reservoir | Reservoir | 15 | Cameron | 26 08 10 N | 097 49 29 W |
| Dolly Vinsant Hospital | Hospital | 10 | Cameron | 26 08 10 N | 097 37 18 W |
| William B Travis Elementary School | School | 20 | Hidalgo | 26 08 10 N | 097 54 59 W |
| Farmers Co-op Airport | Airport | 13 | Cameron | 26 08 09 N | 097 41 41 W |
| Llano Grande Country Club | Locale | 19 | Hidalgo | 26 08 09 N | 097 55 57 W |
| Arroyo Alto | Populated Place | 16 | Cameron | 26 08 08 N | 097 49 19 W |
| Las Ruelas Banco Number 141 | Levee | 31 | Hidalgo | 26 08 08 N | 098 17 37 W |
| Arroyo Alto Colonia | Populated Place | 16 | Cameron | 26 08 07 N | 097 49 20 W |
| Booth School | School | 11 | Cameron | 26 08 07 N | 097 38 25 W |
| Colonia Victoriana | Populated Place | 17 | Hidalgo | 26 08 07 N | 097 55 35 W |
| La Quinta Colonia | Populated Place | 27 | Hidalgo | 26 08 07 N | 098 11 47 W |
| Holly Beach | Populated Place | 0 | Cameron | 26 08 06 N | 097 17 29 W |
| Booth Elementary School - South | School | 11 | Cameron | 26 08 06 N | 097 38 26 W |
| Anzalduas Park | Park | 34 | Hidalgo | 26 08 06 N | 098 19 11 W |
| First Presbyterian Church | Church | 11 | Cameron | 26 08 05 N | 097 37 40 W |