29 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 78542 | Edinburg | 83,925 |
| 78577 | Pharr | 79,496 |
| 78572 | Mission | 76,753 |
| 78574 | Mission | 63,165 |
| 78504 | Mcallen | 60,999 |
| 78501 | Mcallen | 59,954 |
| 78537 | Donna | 51,034 |
| 78541 | Edinburg | 48,558 |
| 78573 | Mission | 43,555 |
| 78589 | San Juan | 40,115 |
| 78539 | Edinburg | 37,182 |
| 78596 | Weslaco | 36,545 |
| 78599 | Weslaco | 35,999 |
| 78570 | Mercedes | 35,043 |
| 78516 | Alamo | 34,469 |
| 78503 | Mcallen | 21,799 |
| 78557 | Hidalgo | 14,075 |
| 78576 | Penitas | 13,466 |
| 78538 | Edcouch | 10,091 |
| 78543 | Elsa | 8,614 |
| 78595 | Sullivan City | 6,128 |
| 78560 | La Joya | 4,500 |
| 78562 | La Villa | 3,157 |
| 78579 | Progreso | 3,063 |
| 78549 | Hargill | 838 |
| 78558 | La Blanca | 533 |
| 78563 | Linn | 62 |
| 78565 | Los Ebanos | 57 |
| 78540 | Edinburg | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 29 ZCTAs in Hidalgo County, Texas (US Census).