Figure: 28 TAC §5.3700(c)(1)
| ZIP Code | City | County |
| 78202 | San Antonio | Bexar |
| 78203 | San Antonio | Bexar |
| 78204 | San Antonio | Bexar |
| 78205 | San Antonio | Bexar |
| 78206 | San Antonio | Bexar |
| 78207 | San Antonio | Bexar |
| 78208 | San Antonio | Bexar |
| 78210 | San Antonio | Bexar |
| 78215 | San Antonio | Bexar |
| 78353 | Encino | Brooks |
| 78355 | Falfurrias | Brooks |
| 78520 | Brownsville | Cameron |
| 78521 | Brownsville | Cameron |
| 78559 | La Feria | Cameron |
| 78566 | Bayview | Cameron |
| 78566 | Los Fresnos | Cameron |
| 78567 | Los Indios | Cameron |
| 78568 | Lozano | Cameron |
| 78575 | Olmit | Cameron |
| 78575 | Rancho Viejo | Cameron |
| 78583 | Rio Hondo | Cameron |
| 78586 | San Benito | Cameron |
| 78592 | Santa Maria | Cameron |
| 78593 | Santa Rosa | Cameron |
| 78341 | Benavides | Duval |
| 78349 | Concepcion | Duval |
| 78357 | Freer | Duval |
| 78376 | Realitos | Duval |
| 78384 | San Diego | Duval |
| 77003 | Houston | Harris |
| 77004 | Houston | Harris |
| 77006 | Houston | Harris |
| 77011 | Houston | Harris |
| 77012 | Houston | Harris |
| 77020 | Houston | Harris |
| 77021 | Houston | Harris |
| 77022 | Houston | Harris |
| 77023 | Houston | Harris |
| 77026 | Houston | Harris |
| 77028 | Houston | Harris |
| 77029 | Houston | Harris |
| 77033 | Houston | Harris |
| 77051 | Houston | Harris |
| 77087 | Houston | Harris |
| 77093 | Houston | Harris |
| 77547 | Galena Park | Harris |
| 78537 | Donna | Hidalgo |
| 78549 | Hargill | Hidalgo |
| 78589 | San Juan | Hidalgo |
| 78595 | Sullivan City | Hidalgo |
| 78361 | Hebbronville | Jim Hogg |
| 78385 | Sarita | Kenedy |
| 78536 | Delmita | Starr |
| 78545 | Falcon Heights | Starr |
| 78547 | Garciasville | Starr |
| 78548 | Grulla | Starr |
| 78582 | Rio Grande City | Starr |
| 78584 | Roma | Starr |
| 78585 | Salineno | Starr |
| 78591 | Santa Elena | Starr |
| 76102 | Fort Worth | Tarrant |
| 76104 | Fort Worth | Tarrant |
| 76105 | Fort Worth | Tarrant |
| 78040 | Laredo | Webb |
| 78594 | Sebastian | Willacy |
| 78067 | San Ygnacio | Zapata |